农业工程

Introduce and Comment of“Agritechnica 2011 Innovation Award”

Xiao Lin

2012, 2(2): 1-12.

Abstract(842) [PDF 6428KB](24)

Abstract:
Agritechnica is the world′s most influential agricultural exhibition event.It is known as benchmark and bellwether for international agricultural machinery industry development.In Agritechnica 2011，the organizers of DLG hand out innovation awards to 41 innovations，including 2 Innovation Gold Award and 39 Innovation Silver Award.Award-winning technologies or products were introduced.The latest trends of international agricultural industry and advanced technology were introduced to the domestic counterparts.By the contrast，we can point out gap of agricultural machinery industry to our country，and have a good development of China′s agricultural machinery researches.

Reference of the Development Trend of Global Forestry Technology and Equipment

Chen Xingliang

2012, 2(2): 13-16.

Abstract(1126) [PDF 1561KB](20)

Abstract:
This article introduces the situation of forestry technology and equipment of developed countries over world，analyzes the development trend in the field of forestry technology and equipment，and provides meaningful suggests for the development of forestry technology and equipment in China.According to the study，the forestry produces in developed countries are already mechanized，under which system the technology is becoming intelligent，efficient，multi-functional and large-scaled，resources and ecological protection are highlighted.So the independent R & D of important technology and equipment，policy guidance and industry management，policy of forestry technology and equipment should be strengthened.

Directional and Precision Sowing Techniques of Corn

Jiang Guanghua, Han Yingzhi, Wang Yanhong, Liu Junxia, Yang Wenli, Geng Lixing, Feng Zuolong

2012, 2(2): 17-20.

Abstract(889) [PDF 1680KB](20)

Abstract:
Biological characteristics of corn seeds like structure，germination and emergence were summarized.Relationship of direction of seed in the soil and leaf growth was expounded by actual investigation.Based on agronomic research，techniques of corn mechanical precision directional precision sowing were proposed，and structure of directional and precision seed metering device was introduced.Pass rate of directional and precision sowing was more than 80% on test bed.Application of directional and precision sowing techniques can ensure planting density，but also take full advantage of the sun′s light and heat，to ensure high and stable yield of corn.

Status and Prospect of Transplanter at Home and Abroad

Zhang Mian, Ji Jiangtao, Du Xinwu

2012, 2(2): 21-23.

Abstract(1062) [PDF 1146KB](22)

Abstract:
Transplanter is an important way to improve crop yield, and ensure production quality. Type, characteristic, working parts and principle of transplanter at home and abroad were introduced. Research method and progress were expounded. Main problems of transplanter development were indicated, and developing strategies were proposed.

Research and Forecast of Potato Harvester Market

Jia Jingxia, Yang Deqiu, Li Jiandong, Li Yang

2012, 2(2): 24-29.

Abstract(742) [PDF 2419KB](20)

Abstract:
Development situation about potato harvester in 2011 was introduced，including market demand，competition situation，consumer features，price and development tendency of product technology and so on.Market demand and competition situation about potato harvester in 2012 were forecasted and analyzed，which can give some direction to manufacturing enterprises how to design production in 2012.

Practice and Research of Conservation Tillage Model in Zhaosu Reclamation Area

Zhang Zhenguo

2012, 2(2): 30-32.

Abstract(1000) [PDF 992KB](20)

Abstract:
In recent years to increase investment in agricultural technology，optimize combinations agricultural machinery and agronomic new technology，improve utilization rate of natural precipitation and improve quality of cultivated land，model suitable for dry farming conservation tillage in Zhaosu Reclamation Area was explored.

Development of Agricultural Machinery for Agriculture，Increase of Yield and BenefitAchieved Remarkable Results with Innovating Supervisor Mode of Agricultural Machinery by Heilongjiang Nongken 852 Farm

Yang Fujiang, Xu GuoZhong, Fang Yuquan, Ma Chengyan, Cao Zhe

2012, 2(2): 33-34.

Abstract(939) [PDF 1184KB](18)

Abstract:
Comprehensive strength of Bawuer Branches Offices was quickly enhanced by speeding up level of agricultural machinery，and innovating supervisor mode.In recent years，changes of Bawuer Branches Offices were analyzed，way for local development was summarized，and both of yield and benefit were increased.

Study on Key Technology and Engineering Application of Facility Agriculture Internet of Things

Li Zuowei, Ding Jie, Mao Pengjun

2012, 2(2): 35-39.

Abstract(914) [PDF 2007KB](25)

Abstract:
System situation and related technologies of facility agriculture internet of things were briefly described.Through analysis and study on key technology and current situation of engineering application of facility agriculture internet of things，several problems existing in the practical popularization and application were indentified.Then through analysis on problems，the some suggestions for promoting engineering application of facility agriculture internet of things technologies were proposed.

Research and Application Status of Agricultural Instruments

Zhang Qiang

2012, 2(2): 40-45.

Abstract(647) [PDF 2422KB](22)

Abstract:
Research and application status of agricultural instruments were overviewed，functions of hyperspectral remote sensing and spectral detector for monitoring plant eco-physiology during the growing stage were analyzed.Rapid development of common analytical instruments such as spectrum，chromatography and mass spectrometry had brought great convenience to security detection and quality analysis of farm produce.R & D of instruments（made in China）should be strengthened.And industry development of plant protection instruments，life science instruments，forest measurement instruments，and so on should be promoted.

Microwave-assisted Dilute Acid Hydrolysis of Corn Straw into Reducing Sugar in Ionic Liquid［Amim］Cl

Chai Lianzhou, Yang Mingni, Zhang Guiqin, Bi Xianjun

2012, 2(2): 46-51.

Abstract(698) [PDF 2419KB](20)

Abstract:
Effects of ionic liquid volume，sulfuric acid concentration，microwave irradiation time，microwave irradiation temperature and microwave irradiation power on dilute acid hydrolyzed saccharification of corn straw in ionic liquid medium of 1-allyl-3-methyl-iminazole chlorate （［Amim］Cl） by microwave irradiation were investigated.Results indicated that yield ratio of reducing sugar obviously increased with changes of ionic liquid volume，sulfuric acid amount and microwave parameters assisted by microwave irradiation heating.The best condition of acid hydrolysis was as follows：microwave irradiation temperature was 90 ℃，microwave irradiation time was 60 min，microwave irradiation power was 600 W and sulfuric acid amount was 10.0%，and yield ratio of reducing sugar could reach 21.87% obviously higher than 16.72% of traditional dilute acid hydrolysis method.

Application of Low-carbon Energy-saving Technology in Strawberry Symposium

Zhou Zengchan

2012, 2(2): 52-55.

Abstract(805) [PDF 1415KB](18)

Abstract:
The International Strawberry Symposium is the grandest academic event in the strawberry circle，which is also known as the Olympics in strawberry community.Strawberry varieties from around the world would be shown in Strawberry Exposition Garden.Applications of greenhouse structures，covering material，heat preservation system and shallow geothermal energy technology in Strawberry Exposition Garden were introduced.Effects of low-carbon energy-saving technology were revealed.

Production Situation and Development Countermeasures of Peanut in Heilongjiang Province

Zhong Peng, Yang Zhe, Zhao Guixing, Chen Xia

2012, 2(2): 56-58.

Abstract(640) [PDF 1090KB](18)

Abstract:
The situation and key problems of peanut production was analyzed.The development countermeasures were put forward to strengthening the scientific and technical innovation，solving essential pivotal technical problems，promoting vigorously the high yield cultivation technology，and accelerating the development process of the peanut industrial production and so on.

The Research of Rapid Analysis for Oil and Fat Quality Control Based on a New Type Domestic Near Infrared Analyzer

Zhou Xinqi, Han Shuanglai, Ye Huajun, Chen Zhifeng, Fu Yongqiang

2012, 2(2): 59-62.

Abstract(752) [PDF 1241KB](19)

Abstract:
Near infrared technology is one of nondestructive，rapid and green analysis technologies，and can be applied to the determination of oil and grease product as well as oil seeds quality by oil factories.The technology has brought huge economical benefits with factories.A novel domestic broadband（1 000~2 500 nm）analyzer based on near infrared reflectance spectroscopy performs well and possesses the outstanding software integrated with the functions of spectra acquisition，modeling，remote control and management.The analyzer was successfully used to determinate contents of the moisture，protein，fat and amino acids in the soybean and soybean meal.The results show that predicated values for near infrared method are correspondingly near to reference values for national standard methods and the near infrared domestic analyzer can meet the requirement of quality controls for oil and fat products as well as oil seeds.

Applied Research of Information Technology in Food Specialty Teaching

Feng Aiguo, Li Chunyan

2012, 2(2): 63-64.

Abstract(805) [PDF 753KB](19)

Abstract:
This paper elaborates how to optimize the teaching quality and effect through the combination of information technology and traditional teaching in the modern teaching，and gets information technology to popularize and promote in the teaching of food specialty，to adapt current teaching requirements，and information technology apply to food curriculum.

Breslers′s Mathematical Model for Determination Distance Between Emitters by Soil Hydraulic Parameter

Yao Zhenxian, Zhang Dapeng, Yao Miaosen

2012, 2(2): 65-68.

Abstract(696) [PDF 1409KB](18)

Abstract:
In drip irrigation design，distance between emitters is an important parameter to whole system efficiency and irrigation quality，Values are almost calculated valeses in available data and productive practice.Theoretical basis Bresler′Mathematical model for determination distance between emitters was summarized.It will provide reference for determining distance between emitters。

Countermeasures of Desertification and Land Sandification Prevention and Control in China

Yu Cheng

2012, 2(2): 69-71.

Abstract(691) [PDF 1014KB](19)

Abstract:
Genesis，damage，status quo and dynamic change of land desertification and sandification were expounded.Problems and difficulties of desertification and land sandification prevention and control in China were revealed.Results showed that rational land use was an effective path for desertification control.Some measures could do well to implement the scientific concept of development with according to law，scientific control，and comprehensive prevention.

Evaluation of Land Health Based on Matter-element ModelA Case Study of Zaoyang City in Hubei Province

Wang Fei, Yang Le, Ma Caixue

2012, 2(2): 72-77.

Abstract(857) [PDF 2174KB](24)

Abstract:
Focusing on problems of information shield and subjectivity of comprehensive index evaluation in China，land health level with the theory of matter element analysis was evaluated.After analyzed the concept of land health，an index system was established based on Ecology-Economy-Society framework and analytic hierarchy process（AHP）.Taking Zaoyang city，Hubei Province as case.integrated assessment model was constructed with matter-element model.Consequently，the results indicated that Wudian town and Qifang town were healthy zone，Xinshi town and Taiping town are unhealthy zone，and the others were sub-healthy zone.Relevant policies and suggestions were introduced.It provides a practical guidance for healthy and sustainable land-use in Zaoyang City.

The Kinematic Analysis of Small Quantity Seeder Unit for Small Grain Crops in Seeding Process

Qiu Shujin, Guo Yuming

2012, 2(2): 78-82.

Abstract(1095) [PDF 1368KB](18)

Abstract:
Design parameters of multirow different-shaped spiral groove seeder unit，which was the core component of the small quantity precision seeder，were determinated.Kinematic and dynamic analysis of the small grain seed′s motion state，force，motion parameters were conducted in the entire metering process charge area，protection areas and drop area.Multirow different-shaped spiral groove and geometric parameters of seeding round were selected，and upright form of it was analyzed comparatively.Optimized design parameters of metering wheel under normal seeding speed were obtained.It provides a basis for design of small quantity precision seeder.

Design and Research of 4GRS-1000 Type Corn Straw Harvester

Zhang Shijie

2012, 2(2): 83-86.

Abstract(838) [PDF 1421KB](26)

Abstract:
Corn straw harvester can complete operation of cutting corn stalks with two transport，feeding，rubbing silk，and collecting other project materials at a time.Main structure and working principle of the 4GRS-1000 type corn straw harvester were introduced.Structure and performance parameters of cutter drum，kneading machine，rub silk and other key components were designed.Unit forward speed and stability of machinery were analyzed.Machine can be hoisted by the 36.7～44.1 kW tractor，kneading length can be adjusted.Performance and production tests showed that the targets were to meet design and maize harvest straw rubbing silk technical requirements.

Digital Ductile Iron Pipe Mold Peening Machine

Xiao Yuqing, Cao Junfeng, Wang Hua, Wei Jianming

2012, 2(2): 87-89.

Abstract(686) [PDF 931KB](15)

Abstract:
Kinematic equation of pipe mold peening machine for centrifugal ductile iron pipe was analyzed.Peening machine with intelligent and digital function combined with project practice was introduced.The function characteristics of digital peening machine was elaborated，and it had good application effects on practical engineering project.

Test and Analysis of Improvement for Transmission Shaft with Duplex Fork Structure

Zhang Jiali, Han Jingge

2012, 2(2): 90-91.

Abstract(1265) [PDF 884KB](19)

Abstract:
A short and no length compensation of transmission shaft with duplex fork structure were introduced， including of transmission shaft body and joint fork ears on both shaft body ends with same reference at once. Two joint fork ears were one integrated structure. Several processes （like restructuring parts， extrusion， weldment， etc.） were reduced and clamping process of two ears could finished at one step. For improving positioning accuracy and avoiding machining error， quality of parts processing are improved.

Technical Regulation of Super-High-Yielding Cultivation of Rice in Panjin Paddy Field

Fu Lidong, Wang Yu, Li Xu, Sui Xin, Ren Hai, Li Baojun

2012, 2(2): 92-95.

Abstract(862) [PDF 1454KB](19)

Abstract:
The goal is that agricultural sources，like land，irrigation water，temperature and light，and so on could be reasonably and effectively utilized in Panjin paddy field.Yield and quality of rice could be improved.And pollution of rice and surrounding environment were reduced.Technical regulation of super-high-yielding cultivation of rice in accordance with the relevant standards of the pollution of rice production，combined with production status，was established with some basic researches（quantitative seeding and breed the vigorous seedling，low seeding density cultivation，rational fertilization，quantifying irrigation，integrated pest control，and so on）.Technical measures consist of things like variety selection，soil preparation，seedling cultivation，transplant，fertilization，irrigation，pest control，harvest and other aspects.And rice production capacity was enhanced.

The Innovation of“Company & Farmers”Production Business Model in Agricultural Enterprise

Guo Bin

2012, 2(2): 96-100.

Abstract(640) [PDF 2003KB](19)

Abstract:
The large-scale production contributes to agricultural enterprises，which makes enterprises have super profits.The agriculture enterprises are different from the manufacturing enterprises in production and management.The case studies of a agricultural development Co.，Ltd. show that the implementation of internal re-contracting model of agricultural land resources can make the enthusiasm of farmers to grow，effectively avoid farmers to be “free riders”，the efficient use of production factors.It protects the interests of farmers while ensuring access to large-scale profits and consolidate“Company & Farmers”mode of agricultural production operation.

Farmers Access to Transgenic Technology Services：Evidence from Papaya Production in Guangdong

Zheng Yuting, Wang Chunjie, Chen Ai, Xue Chunling

2012, 2(2): 101-105.

Abstract(748) [PDF 1906KB](16)

Abstract:
Transgenic papaya is China′s first approved for commercial production of direct consumption of genetically modified crops.In this article，farmers turn genes papaya technology using the impact factors carried the basis of econometric analysis，put forward the policy recommendations as soon as possible，improve the transfer genes and other bio-technology information services.

Analysis and Research of Rural Credit and Debt Cause——Taking Jiangsu Province as an Example

Zhang Liqing

2012, 2(2): 106-111.

Abstract(549) [PDF 2539KB](17)

Abstract:
This paper argues that the rural debt is increasing year by year.It has become heavy burden of rural collective economy development，plagued the village daily administrative work.In this paper，the 18262 administrative villages of Jiangsu province，which indebted 40.6 billion yuan has been researched.And on this foundation，it put forward to the method of solving the village-level debt problem was strengthening rural collective assets，resources，and funds，developing rural collective economy，actively resolving the village-level liabilities.

Implementation Way of Enhancing Grain Comprehensive Productivity in Anhui Province

Wang Guangyu

2012, 2(2): 112-114.

Abstract(963) [PDF 1158KB](18)

Abstract:
Through to review the grain comprehensive productivity in Anhui province since reformation and opening and divide the grain comprehensive productivity stage，it analyses the major facto of effect grain yield in different stage，and presents the implementation way of the increase grain comprehensive productivity in Anhui province.

Optimization Experiment on Assembly Multi-finger Intra-row Weeding Mechanism（Extracts）

Parish P Nalavade, Peeyush Soni, Vilas M Salokhe, Tanya Niyamapa

2012, 2(2): 115-118.

Abstract(617) [PDF 1485KB](18)

Abstract:
Performance of three tillage discs，namely standard，notched and spiral notched was evaluated in an indoor soil bin with sandy loam soil.The laboratory testing setup consisted of soil bin system and data acquisition system.Double extended octagonal ring（DEOR）transducer and torque transducer with slip rings were used for three dimensional forces and torque measurements.Three disc angles and three disc rotational speeds were considered for the study.For all the disc shapes considered，driving disc by an external power found reducing the resultant soil forces acting on the tillage disc.Different patterns of cutting edge of the tillage discs significantly affected the forces exerted on tillage disc and soil cutting action.Spiral notched disc exhibited lower values of soil reactions than notched and standard discs.The spiral cutting edge offered shear cutting action eliminating shock loads，hence providing smooth operation.Consequently，the spiral notched disc is recommended for its potential use in conservation tillage practice for efficient crop residue cutting.

Optimal Vibrating Speed of Jigsaw for Harvesting High-Bush Blueberries in Japan（Extracts）

Longsheng Fu, Hiroshi Okamoto, Yoichiro Hoshino, Takashi Kataoka, Youichi Shibata

2012, 2(2): 119-121.

Abstract(1089) [PDF 1503KB](21)

Abstract:
High-bush blueberry does not mature all fruits at once，so it needs to be selectively harvested 3-5 times over 3-4 weeks.The new developed blueberry harvesting method employs a jigsaw，which has five dials for speed changing with a fixed stroke 18 mm，to vibrate branches for separating blueberries in Japan.In order to find out the optimal speed（dial）that can remove more ripe blueberries while less unripe blueberries efficiently，a high-speed camera was applied to record harvesting process of blueberries.Then，details of the process were collected by replaying recorded videos.After that，the optimal vibrating speed and vibrating time was determined with statistical analysis.By analyzing the five speeds，dial 2 with the speed of 1670 cpm was chosen as the optimal speed of jigsaw to vibrate each branch around 2 seconds.In that condition，it separated 87% ripe blueberries which is the same to the three high-speed dials，but only removed 24% unripe blueberries that is not significantly different from dial 1.

Yu Cheng, Wang Yanhong, Pu Lianying

2012, 2(2): 122-123.

Abstract(436) [PDF 950KB](20)

Abstract:

Wang Yanhong

2012, 2(2): 124-124.

Abstract(610) [PDF 513KB](19)

Abstract:

2012 Vol. 2, No. 2

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