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春玉米土壤养分丰缺指标试验——以陕西省榆林市为例

Experiment on Indicators of Soil Nutrient Abundance and Deficiency of Spring Maize: A Case Study of Yulin City,Shaanxi Province

  • 摘要: 肥料费用占春玉米种植成本的50%以上,为科学合理施肥,提出施肥方案。通过对榆林市春玉米“3414”田间肥效试验和田间土壤农化样品检测结果分析与整理,将榆林市耕地土壤养分划分为“高、中、低、极低”4个等级,初步制订出榆林市春玉米土壤养分丰缺指标。

     

    Abstract: Cost of fertilizer accounts for more than 50% of total expenditure of spring maize.A set of reasonable fertilization scheme was put forward for scientific and rational fertilization.By analyzing results of field soil agrochemical samples of field fertilizer effect test of spring maize‘3414’in Yulin city,it was concluded that the soil nutrients of cultivated land were divided into four grades,which were high,medium,low and very low,and the indicators of soil nutrient abundance and deficiency of spring maize in Yulin city were worked out.

     

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