2022 Vol. 12, No. 2

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Potential and Key Technologies of Mechanization Promoting Grain Production Increase and Loss Reduction
XU Feng, TAO Jin, LIU Depu, PENG Junming, REN Qiang
2022, 12(2): 5-9. doi: 10.19998/j.cnki.2095-1795.2022.02.001
Abstract(53) [PDF 907KB](16)
Abstract:
Agricultural mechanization is an important material basis for improving agricultural productivity and an important support for comprehensively promoting implementation of Rural Revitalization Strategy.It has played an important role in increasing grain yield and reducing losses.Important role and significance of increasing grain yield and reducing losses brought by agricultural mechanization were combed systematically.Promotion potential and key technologies of mechanization promoting grain production increase and loss reduction were analyzed deeply.Achievements of mechanization in promoting grain production increase and loss reduction were summarized.Suggestions for potential factors and weaknesses were put forward.
Research Status and Prospect of Cassava Mechanized Planting and Harvesting Equipment at Home and Abroad
CHEN Lintao, MOU Xiangwei, XUE Junxiang, PENG Zhujing, LIU Wenjie
2022, 12(2): 10-16. doi: 10.19998/j.cnki.2095-1795.2022.02.002
Abstract(46) [PDF 11778KB](9)
Abstract:
Low mechanization of cassava production is one of bottlenecks restricting development of cassava industry in China.Planting machinery and harvesting machinery are two major technical problems to be solved in development of cassava production mechanization.In view of urgent need to realize mechanization of cassava production，research status of existing mechanical equipment and its key components for cassava planting and harvesting were expounded，and further research of cassava planter and harvester was prospected in order to provide reference for development of cassava industry.
Research Status and Prospect of Beet Picking Harvester
WANG Zuo, WANG Fei, WANG Nan, LI Jiandong, TAN Beiyan, LIU Yundong
2022, 12(2): 17-22. doi: 10.19998/j.cnki.2095-1795.2022.02.003
Abstract(40) [PDF 4850KB](7)
Abstract:
Beet is an important sugar crop in China and its market demand is huge.At present，beet harvest mainly depends on manual picking，which leads to large labor demand and low efficiency.In order to liberate labor and improve production efficiency，beet harvesting machinery has been popularized and used.Due to limitation of planting mode and machine performance，mechanization level of beet picking remains low.Combined with research status of beet picking harvester，based on key technology of beet picking harvester，development bottleneck of beet picking harvester was analyzed，and development trend of beet picking harvester was pointed out.
Side Deep Fertilization Technology and Device for Rice
ZHAO Jin, HUANG Yun, CHEN Changqing, WENG Xiaoxing, ZHU Jianxi, BAI Zhifeng, XIA Qiwei, WANG Kongjian
2022, 12(2): 23-26. doi: 10.19998/j.cnki.2095-1795.2022.02.004
Abstract(49) [PDF 526KB](12)
Abstract:
Chemical fertilizer is one of important agricultural inputs.There are some problems in traditional fertilizing operation，such as high labor intensity，low fertilizer utilization efficiency，environmental pollution and so on.It has been proved by practice that the way of deeply buried fertilizer at edge of seedling root can improve above situation effectively，it is beneficial to improve rice yield and reduce planting cost.It is popularized as the main agricultural technology in China in recent years，and has great significance in ensuring stability and safety of grain production.Technical mode of side deep fertilization for rice was expounded，research status and applications of side deep fertilization devices of air blown and spiral propulsion type were introduced，and development trend was put forward.
Analysis on National Supervision and Random Inspection of Agricultural Machinery Product Quality
DONG Yunlei
2022, 12(2): 27-30. doi: 10.19998/j.cnki.2095-1795.2022.02.005
Abstract(42) [PDF 531KB](7)
Abstract:
On basis of summarizing results of national supervision and random inspection of agricultural machinery product quality in recent years，product quality problems and causes were analyzed，and suggestions on improving quality of agricultural machinery products were put forward.According to the analysis，quality of domestic agricultural machinery products showed an upward trend year by year，and quality of agricultural machinery products would develop healthily and benign in the future.
Framework of Intelligent Test and Evaluation System for Agricultural Machinery Performance
GAO Jiangyong, HOU Yongsheng, ZHANG Tonglin, SHI Hailing, ZHAI Xuedi, LI Junye
2022, 12(2): 31-35. doi: 10.19998/j.cnki.2095-1795.2022.02.006
Abstract(41) [PDF 1142KB](14)
Abstract:
Agricultural machinery test and evaluation is a technical evaluation of advanced nature，applicability，safety and reliability of agricultural machinery through scientific experiments，testing and assessment.It is a powerful guarantee for promoting popularization and application of agricultural machinery，maintaining legitimate rights and interests of agricultural machinery users，production units，sales units and other parties，and is an important technical support for healthy development of national agricultural mechanization.General situation of intelligent agricultural machinery was analyzed，and then functional framework of intelligent test and evaluation system for agricultural machinery performance was put forward.Based on functional framework，structure of intelligent system and process framework of test evaluation were proposed to provide technical and theoretical basis for construction of intelligent system for subsequent test and evaluation.
Design and Implementation of Agricultural Machinery Cooperative Management System Based on Plot Management
LIU Xingtao, XU Lanjun, LI Xiaolong, CHEN Hua, SUN Mengyao, ZHANG Chuanshuai
2022, 12(2): 36-42. doi: 10.19998/j.cnki.2095-1795.2022.02.007
Abstract(46) [PDF 12472KB](9)
Abstract:
Agricultural machinery socialized service is inevitable trend of development of modern agricultural production.As the main body of socialized service，agricultural machinery cooperatives have demand of operation and management.In order to realize management of managed plots，scheduling management of agricultural machinery，production tracking of operations and management of agricultural materials in agricultural production trusteeship，an agricultural machinery cooperative management system was designed based on plot management.Through functional requirements analysis of cooperative management system，design of overall architecture of information system was completed，business functions of system was realized，and application prospect of system was prospected.Results showed that management of plots，maintenance and orders of cooperatives through information means could more scientifically and intuitively monitor operation quantity and quality of agricultural machinery，effectively supervise manipulator，and provide reliable data support for development decision-making of cooperatives.
Design and Implementation of Fruit Picking Robot Control System Based on STM32
SUN Yongfang
2022, 12(2): 43-47. doi: 10.19998/j.cnki.2095-1795.2022.02.008
Abstract(54) [PDF 3152KB](10)
Abstract:
In view of shortage of labor resources in agricultural production field and high cost of manual picking，a design scheme of fruit picking robot control system based on STM32 was proposed.The scheme mainly adopted automatic picking to realize intelligent identification and picking of mature fruits.Using STM32 single-chip microcomputer as main control chip of the system，visual recognition part adopted Open MV image processing function as the core.Feasibility of the system was analyzed through experimental verification，and results showed that the system could meet actual use requirements of users.
Progress in Detection Technology of Organochlorine Pesticide Residues in Soil
HOU Wanyu, LI Weijun, CHEN Hao, ZHANG Xuyun
2022, 12(2): 48-52. doi: 10.19998/j.cnki.2095-1795.2022.02.009
Abstract(40) [PDF 698KB](6)
Abstract:
Organochlorine pesticide residues are widely concerned by the public.Current situation of pesticide residue detection technology was analyzed，and development trends of new technology were given.Accuracy of detecting organochlorine by mass spectrometry and chromatography was relatively low，respectively.With progress of technology，pretreatment and detection of organic chlorine has been made a breakthrough and improved.Integrated coupling technology of extraction and purification has improved pretreatment efficiency.Combined use of various detection technologies could make results more accurate and efficient and make detection limit lower.
Exploration and Practice of Typical Models of Crop Straws Comprehensive Utilization in Huaibin County of Henan Province
ZHANG Kai, LU Weibing, FU Daping, YIN Yan, PEI Qiang, YAN Junbao
2022, 12(2): 53-56. doi: 10.19998/j.cnki.2095-1795.2022.02.010
Abstract(45) [PDF 667KB](6)
Abstract:
In recent years，Huaibin County has actively explored and practiced technical model of comprehensive utilization of straw and achieved remarkable results.Among them，typical model of“three modernizations”recycling utilization of straw forage-based materialization-fertilization is based on production of edible fungi from straw as a link，and joint development of straw breeding and organic fertilizer production，so as to realize that crop straw comes from cultivated land and finally returns to cultivated land.The closed-loop cycle of whole process，economic，social and ecological benefits are obvious.Methods and results of Huaibin County′s exploration and practice of technical model of comprehensive utilization of straw were introduced，current main problems were analyzed.It could provide references for continuous and in-depth development of comprehensive utilization of straw.
Remote Sensing Analysis of Winter Wheat Growth and Dry Hot Wind Disaster in Hebei Province Based on MODIS Data
WEI Qucheng, LIU Qiqi, SHI Minghua, LI Xueshan
2022, 12(2): 57-62. doi: 10.19998/j.cnki.2095-1795.2022.02.011
Abstract(31) [PDF 1067KB](7)
Abstract:
Using MODND1D China′ s 500 m resolution NDVI product data，changes of NDVI in each growth period of winter wheat in Hebei Province from October 2018 to May 2019 were analyzed，and a large-area dry hot wind process in Hebei Province during winter wheat filling period on May 22，2019 was analyzed to compare changes of NDVI before and after dry hot wind.Results showed that NDVI could better reflect growth of winter wheat in each growth period and effect of dry hot wind on winter wheat filling period.When dry hot wind occurred，NDVI showed an obvious downward trend，and its downward range increased with aggravation of dry hot wind disaster.
Application of Pulsed Electric Field Technology in Food Processing and Preservation
WANG Shujie, ZHAO Zirui, LI Wenlong, ZHANG Yajing, MENG Huiwen, ZHOU Dan, ZHOU Yajun
2022, 12(2): 63-67. doi: 10.19998/j.cnki.2095-1795.2022.02.012
Abstract(32) [PDF 602KB](6)
Abstract:
Pulsed electric field（PEF）processing is a new non-thermal processing technology with electroporation effect on cells，which has a wide application value in food processing and preservation.Progress of pulsed electric field in extraction of natural active components，sterilization，degradation of harmful substances，passivation of enzymes，improvement of food quality，drying and other aspects，were summarized.Relevant literature was reviewed，problems and prospects of pulsed electric field were prospected，which provided reference for industrial application of pulsed electric field.
Comparison and Correction of Calculation Methods of Reference Crop Evapotranspiration in Luzhou City
DENG Anni, KANG Yinhong, WANG Junqin, WU Jianfei
2022, 12(2): 68-74. doi: 10.19998/j.cnki.2095-1795.2022.02.013
Abstract(44) [PDF 1409KB](6)
Abstract:
In order to obtain accurate calculation results of reference crop evapotranspiration（ET0）in the areas with missing meteorological data，and to explore applicability of ET0 simple methods in Luzhou City，Penman-Monteith（PM）method was employed as standard method to compare ET0 calculated by simple methods including Hargreaves（Har）method，FAO24 Blaney-Criddle（FAO24 BC）method，Makkink（Mak）method and Priestley-Taylor（PT）method.The linear relationship and Bayesian formula were used to correct each method.Through error analysis，it was concluded that Har and PT methods had good performances with relatively small errors in study area.The RMSE was 0.5~1.1 mm/d and PE was 10%~15%，correction of linear relationship was better than the Bayesian formula.After linear correction，error of the Har and PT methods was reduced by about 50% and 80%，respectively.It could be obtained that correction effect of PT method was much better than the Har method.Therefore，PT method corrected by linear relationship was more suitable to replace PM method to calculate ET0 when meteorological data was missing，and it could provide theoretical basis and data support for estimating crop water requirements in the future.
Development Status and Countermeasures of Water and Fertilizer Integration Technology
CHEN Fang
2022, 12(2): 75-78. doi: 10.19998/j.cnki.2095-1795.2022.02.014
Abstract(42) [PDF 622KB](12)
Abstract:
Water and fertilizer integration technology combines soil foundation and crop demand rule，mixture of liquid fertilizer and irrigation water is provided to cultivated crops regularly，quantitatively and proportionally through a controlled pipe network.It has significant cost-saving，efficiency-increasing and environmental protection effects.Equipped with Internet of Things and automatic control equipment，it can realize intelligent modern agricultural technology.Application situation and existing problems of water and fertilizer integration technology in China was introduced，and corresponding countermeasures were put forward，which were of great significance to promote development of agricultural modernization and enhance agricultural productivity.
Land Transfer Willingness of Grain Producing Farmers under Condition of Developed Socialized Services: Taking Pingdu City of Shandong Province as an Example
WANG Meixi, MU Shaoban, LI Xiao, FAN Linghui
2022, 12(2): 79-82. doi: 10.19998/j.cnki.2095-1795.2022.02.015
Abstract(35) [PDF 484KB](11)
Abstract:
An empirical analysis was made on land transfer willingness and influencing factors of grain producing farmers under condition of developed socialized services by using ordered multi classification logistic regression analysis.Results showed that there were significant differences in farmers′ willingness to transfer land under different part-time conditions.Willingness of pure farmers to remain unchanged was relatively strong，and willingness of second part-time farmers to flow out of land was relatively strong.Main factors affecting farmers′ willingness to transfer were age of household head，education level，proportion of non-agricultural income，proportion of part-time employment，and cost of agricultural means of production.
Research on Construction of Land Spatial Planning Database: Taking Expression of Planning Scheme in Database and Uniformity of Maps and Data as an Example
LIN Changchun, ZHOU Caiqin, HE Wenlong, WANG Xiaolan
2022, 12(2): 83-86. doi: 10.19998/j.cnki.2095-1795.2022.02.016
Abstract(30) [PDF 579KB](7)
Abstract:
Construction of land spatial planning database is an important part of“one map”project of land and resources，and it is basic basis for implementation of land management system.Inspection of township level planning database of 2 500 units（counties）in China were sort out and summarized.Taking expression of planning scheme in database and uniformity of maps and data as an example，suggestions and measures in view of problems in construction of planning database，such as planning indicators，relevant layer relations，indicator implementation and zoning correspondence were put forward.It provided reference for construction of land spatial planning database.
Improvement of Pickup and Feeding System of Baler Based on TRIZ Theory
GUO Xiyan, WANG Zhenhua, WANG Xin, ZHAO Xiaojuan, WANG Qiang, BAO Zhiliang, GAO Lei, WANG Junyue
2022, 12(2): 87-89. doi: 10.19998/j.cnki.2095-1795.2022.02.017
Abstract(57) [PDF 4053KB](10)
Abstract:
Aiming at problem that pickup and feeding system of baler was blocked due to winding and accumulation of grass when picking up and feeding grass，and the machine can not work normally，two improvement schemes were put forward by using cutting principle and technical contradiction analysis in TRIZ theory，which could effectively prevent winding and accumulation of grass，avoid system blockage，and then improve picking and feeding efficiency of the baler.Through comparative analysis，scheme of hollow screw conveyor was selected.After improving design of baler prototype，field test verification was carried out.Results showed that effect of preventing blockage of pickup and feeding system was obvious，which fully proved rationality and effectiveness of application of TRIZ theory to improve pickup and feeding system of the baler.
On-line Running-in Filtration and Dialysis Mode of Tractor Transmission System
PAN Hualei, YANG Qianwen, LIU Jianghui
2022, 12(2): 90-93. doi: 10.19998/j.cnki.2095-1795.2022.02.018
Abstract(39) [PDF 608KB](6)
Abstract:
Before installing tractor transmission system into whole tractor，transmission system needs to be dialyzed and filtered to remove impurities generated during installation or operation of transmission system，so as to improve service life of the transmission system.At present，dialysis and filtration methods used by different tractor manufacturers in the market are also different，selection of filters and time of filtration and dialysis are also different，and effect is naturally different.Through comparative analysis of dialysis and filtration methods commonly used in market when tractor transmission system runs in online，and according to limit value of transmission system for cleanliness of oil and actual application，filter accuracy was put forward in corresponding filtration and dialysis methods，hoping to provide some help for development of agricultural machinery industry.
Design of Hydraulic Control System for Potato Planter
LI Yang, PU Lianying, LIU Mengmeng, YAN Yunhang
2022, 12(2): 94-97. doi: 10.19998j.cnki.2095-1795.2022.02.019
Abstract(27) [PDF 708KB](7)
Abstract:
Based on analysis of hydraulic system of potato planter，working principle of hydraulic control system was introduced in detail and scheme design of control system was described，which provided references for design of hydraulic system of potato planter in the future.
Design and Test of Ramie Automatic Stripping Machine
WANG Ying, FENG Yan, TAN Dongmei, LIU Dingwei, ZHENG Weifang, LUO Gang
2022, 12(2): 98-101. doi: 10.19998/j.cnki.2095-1795.2022.02.020
Abstract(39) [PDF 3902KB](7)
Abstract:
In view of high operating strength，poor work safety，and low work efficiency of existing ramie stripping machine，especially ramie tip and base end of multi-roller direct feed stripping machine is not clean and stripping drum is easy to twist，a technical scheme for an automatic ramie stripping machine integrating multiple stripping processes such as pressing，scraping，beating，clamping and combing，was proposed，and a design test was carried out on ramie automatic stripping machine.The machine did not need manual reverse pulling and stripping，and could realize continuous stripping which solved problems of unclean stripping at the end of ramie，entanglement of stripping drum，and high impurity content.The raw ramie productivity of whole machine was 58 kg/h，fiber percentage of fresh ramie stem was 6.3%，and percentage of ramie impurities content was 1.32%，reaching second-class ramie fiber standard，and length of processable ramie stem was greater than or equal to 800 mm（remove leaves）.
Design and Test of Aerobic Fermentation Treatment Equipment for Human Feces
XING Donglun, SHEN Wenlong, HUANG Yunkui, YANG Juntai, SUN Changzheng, JING Quanrong, DONG Shiping
2022, 12(2): 102-105. doi: 10.19998/j.cnki.2095-1795.2022.02.021
Abstract(35) [PDF 9723KB](7)
Abstract:
In order to recycle and reuse human feces in rural ecological toilets，a fast and environmentally friendly treatment method was proposed.Aerobic fermentation treatment equipment was designed，a production of prototype was accomplished.The parts such as premixing system，fermentation system，deodorization system and intelligent control system were introduced in detail.Aerobic fermentation experiment was carried out.Results showed that aerobic fermentation treatment equipment had a high speed of sterilization and fermentation，high compost maturity，novel structure and simple operation，which had good market application prospect.
Exploration and Practice of Cultivating High-quality Talents for Agricultural Engineering Specialty under New Development Stage
WAN Xingyu, LIAO Qingxi, LIAO Yitao, CHEN Hui, ZHU Longtu, WANG Lei
2022, 12(2): 106-111. doi: 10.19998/j.cnki.2095-1795.2022.02.022
Abstract(32) [PDF 963KB](9)
Abstract:
Grasping connotation of agricultural engineering in new development stage of modern agricultural transformation and upgrading，and cultivating compound and innovative high-quality talents of agricultural engineering specialty are important measures for agricultural colleges and universities to serve national strategy，meet needs of agricultural industry and deepen reform of engineering education.The interdisciplinary and industry-agriculture integration connotation of agricultural engineering for agricultural colleges and universities under the new era were expounded.To meet needs of agricultural information technology application for high-quality talents with solid theoretical foundation，strong practical ability and international vision，combined with school-based characteristics of integration of industry and agriculture of Huazhong Agricultural University and background of construction of new engineering majors，exploration and practice of teaching scale and quality balance approach，coexistence of virtual and real education conditions，practice platform of industry university research integration，cultivation mechanism of specialized industry cooperation，cross coupling training paradigm，and innovative culture of whole person education，were carried out.Results of high-quality personnel training mode to deepen education reform of agricultural engineering were summarized and analyzed.Cultivation paths of high-quality talents in agricultural engineering，such as innovating concept of quality education，innovating multi-dimensional model of education，and improving science education system，were put forward to provide first-class talent support for rural revitalization strategy，agriculture and economic and social development in the future.
Practice and Exploration of Undergraduate Graduation Project Teaching Reform of Agricultural Engineering under Background of Innovation and Entrepreneurship
ZHAO Na, HUANG Yu, QIN Long, CAO Ruixue, LI Xinping, NIU Xiaoli
2022, 12(2): 112-115. doi: 10.19998/j.cnki.2095-1795.2022.02.023
Abstract(34) [PDF 528KB](7)
Abstract:
The undergraduate graduation project is a test and summary way of the four-year university learning achievements.Students′ comprehensive quality，engineering practice ability or scientific research academic ability can be cultivated through the project.The project is also helpful for building students′ to build innovation and entrepreneurship abilities.In a review of guiding graduation project of agricultural engineering，problems in the topic selection，teaching process and scoring standard were systematically analyzed.Based on analysis result，reform scheme of graduation project of agricultural engineering was explored and practiced，which would provide a new idea for improving quality of graduation project and innovation ability of agricultural engineering undergraduates.
Study and Practice of Skill Competition to Improve Quality of Professional Talents Training Taking Competition of Numerical Control Machine Tool Assembly and Adjustment and Technical Transformation as an Example
ZHU Liangliang, TAO Wendong, CHEN Gaofeng, FU Jianjun
2022, 12(2): 116-119. doi: 10.19998/j.cnki.2095-1795.2022.02.024
Abstract(35) [PDF 588KB](7)
Abstract:
Under background of vocational education reform，skill competition is an important form of technical education and practical education in higher vocational colleges，and an important starting point for cultivation of technical and skilled talents.Taking the numerical control machine tool assembly and adjustment and technical transformation competition of Yangling Vocational and Technical College as an example，problems existing in talent training were analyzed.To cultivate more technical and skilled talents with the spirit of craftsmen in a big country，targeted solutions were put forward and put into practice.
Curriculum System Construction of Mechatronics Technology Specialty Group under Background of“Double High”
JIN Ying, LIU Zhiyong, ZHANG Juanrong
2022, 12(2): 120-123. doi: 10.19998/j.cnki.2095-1795.2022.02.025
Abstract(39) [PDF 1548KB](7)
Abstract:
The construction of high-level specialty groups is oriented to high-end industry and industry high-end，and reconstruction of curriculum system is the core of specialty group construction，which is foundation of constructing specialty group to adapt to regional economy and realizing goal of cultivating high-level technical talents.Taking mechatronics technology professional group of Xianyang Vocational and Technical College as an example，based on current situation analysis of construction of professional group curriculum system，idea of professional group curriculum system construction was expounded.According to relationship between professional post group and industrial chain，specific scheme of “platform + module”curriculum system of“foundation sharing，core separation and comprehensive expansion”was built，which aimed to provide theoretical guidance for school′s talent training strategy and provide a reference for construction of similar or related professional group curriculum system in brother colleges.
Quality and Safety Control Technology of“Qinzhou Yellow”Millet
YANG Yanqiang, ZHANG Xinxin, HUA Jin
2022, 12(2): 124-128. doi: 10.19998/j.cnki.2095-1795.2022.02.026
Abstract(36) [PDF 774KB](7)
Abstract:
Quality and safety guarantee measures of“Qinzhou Yellow”millet in the process of planting were comprehensively discussed，which was a characteristic product of Changzhi，Shanxi Province.“Qinzhou Yellow”millet planting process control technology was put forward from aspects of base conditions，seed selection and treatment，sowing，fertilization，field management，timely harvest，storage and monitoring，so as to ensure its planting technology scientific standard，and ensure quality and safety of millet.
Effects of Nitrogen and Phosphorus Fertilizer Amounts on Wheat Yield
ZHAO Jingmei, DING Wenfeng, WANG Lin
2022, 12(2): 129-133. doi: 10.19998/j.cnki.2095-1795.2022.02.027
Abstract(45) [PDF 823KB](11)
Abstract:
At present，reasonably controlling amount of chemical fertilizer has become the only way for agricultural development.In order to effectively reduce amount of chemical fertilizer，improve soil fertility level and increase crop yield，effects of nitrogen and phosphorus fertilizer on wheat yield under different green fertilizer varieties were analyzed by field split plot experiment.Results showed that when nitrogen and phosphorus fertilizer were reduced to 120 kg N/hm2 and 80 kg P2O5/hm2 respectively，wheat yield could reach the highest value，which showed that this fertilization treatment had good application effect and value，and could be popularized in agricultural production.
Effects of Fertilization and Mulching on Growth of Sunflower
DU Liangliang, ZHANG Jinxia, REN Fangfang
2022, 12(2): 134-138. doi: 10.19998/j.cnki.2095-1795.2022.02.028
Abstract(48) [PDF 630KB](6)
Abstract:
Mulching and planting fertilization technology plays a very important role in sunflower planting industry.The sunflower planting industry focuses on impact of mulching and fertilization on yield and quality of sunflower.Based on comprehensive analysis of effects of mulching and fertilization on soil hydrothermal characteristics and soil physical and chemical properties，effects of mulching and fertilization on sunflower growth and development，photosynthetic characteristics and sunflower yield were further comprehensively analyzed，and problems and development direction in the research of sunflower farmland mulching and fertilization were pointed out.
Key Techniques for High Yield and High Efficiency of Wheat Planting in North China
YANG Aiqiao, ZHENG Jingchuan, XU Liping, MA Liang, HAO Xiaolan
2022, 12(2): 139-142. doi: 10.19998/j.cnki.2095-1795.2022.02.029
Abstract(36) [PDF 561KB](8)
Abstract:
Wheat is an important ration crop in China，and its yield is related to China′s food security.It is of great significance to study key technologies of high yield and high efficiency in wheat planting.Factors affecting wheat yield were analyzed.Key techniques for high yield and high efficiency of wheat planting in North China were introduced from aspects of improved seed，land preparation，sowing，field management and harvest.It could provide reference for helping farmers increase production and income.
Influencing Factors Analysis of Farmers′ Willingness to Mutton Sheep Breeding in Huanxian County of Gansu Province
ZHANG Xihua, CHEN Bingpu, ZHANG Yan
2022, 12(2): 143-148. doi: 10.19998/j.cnki.2095-1795.2022.02.030
Abstract(37) [PDF 1086KB](8)
Abstract:
Based on survey data of five towns and villages in Huanxian County of Gansu Province，combined with development status of mutton sheep in Huanxian County，the binary Logit model was used to conduct an empirical analysis on influencing factors of farmers′ breeding willingness.Results showed that，number of labor force，whether there was sufficient fodder，natural environment，breeding years，mutton sheep breeds，government subsidies and mutton sheep price had a significant positive impact on farmers′ breeding willingness，among which number of labor force，natural factors，mutton sheep breeds and mutton sheep price had the most significant impact on farmers′ breeding willingness.Disease risk had a significant negative effect on farmers′ breeding willingness.To make more farmers participate in the mutton sheep breeding industry，promote farmers to increase production and income，and promote modernization development of mutton sheep industry in Huanxian County，the government should strengthen insurance subsidies for forage grass，enhance discourse power and bargaining power of farmers in sales process，improve farmers′ awareness of breeding and other relevant suggestions.
Development Status and Suggestions of Konjac Leisure Food Industry in Shaanxi Province
WANG Yong, LI Yanjun, MIAO Zhijuan
2022, 12(2): 149-152. doi: 10.19998/j.cnki.2095-1795.2022.02.031
Abstract(30) [PDF 655KB](7)
Abstract:
There are some advantages in konjac leisure food industry in Shaanxi，such as industrial policy support，raw material resource endowment，regional characteristic industry，konjac leisure food development technology.But there are some problems，including insufficient supply of raw materials and insufficient attention at production end，serious product homogenization and low entry threshold，increasing production scale coexists with lagging product and technology renewal，and there are many difficulties in development of leading enterprises.Development trend and technological innovation were analyzed，some development suggestions were put forward，focusing on konjac regional characteristic industries，supporting establishment of konjac leisure food industry innovation alliance，supporting expansion and strengthening of leading enterprises，and cracking bottle neck of industrial development with science and technology.
Countermeasures of Rural Human Settlement Environment Governance in Heilongjiang Province under Background of Rural Revitalization
JIANG Ying, NIE Mingzhu
2022, 12(2): 153-155. doi: 10.19998/j.cnki.2095-1795.2022.02.032
Abstract(32) [PDF 498KB](6)
Abstract:
Rural human settlement environment governance plays an important role in rural revitalization.Based on current stage of rural human settlement environment governance in Heilongjiang Province，the key is to develop rural industry and improve“blood-making”ability of rural economy.Based on characteristics of rural resource allocation in Heilongjiang，dominant position of farmers was emphasized，rural vegetable garden economy should be developed，and a new model of rural human settlement environment governance should be constructed.In order to ensure smooth implementation of rural environmental governance in cold areas，jointly realize win-win economic social and ecological benefits，and build a beautiful and ecologically livable village suitable for a well-off society，some advice was given，including standardizing，beautifying and greening rural courtyards，introducing straw biological treatment technology into courtyard economy，promoting double pit alternating dry latrines，improving supporting policies and legal support.
Development Mode and Countermeasures of Modern Logistics for Storage and Preservation of Edible Fungi
HU Chunli
2022, 12(2): 156-159. doi: 10.19998/j.cnki.2095-1795.2022.02.033
Abstract(31) [PDF 588KB](7)
Abstract:
At present，edible fungi is mainly natural logistics or normal temperature logistics and characteristics of freshness and perishability determine the need to study modern logistics technology of edible fungi storage and preservation.Problems existing in logistics of edible fungi storage and preservation were analyzed.Modern logistics model of edible fungi was constructed by referring to logistics model led by logistics enterprises，production enterprises，wholesale markets and retail enterprises.To provide theoretical reference for modern logistics system of edible fungi，development strategy of modern logistics for edible fungi storage and preservation，from four aspects：logistics concept，logistics development，management system and professional cooperatives，was put forward.

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