The results showed that EM microbial compost increased winter wheat and summer maize yields significantly.
结果表明：em微生物堆肥能明显增加冬小麦和夏玉米的产量。
A soil moisture balance equation that is applicable for winter wheat and summer maize in the Huanghe-Huaihe plain was adopted as the soil moisture model.
土壤水分模型采用适合于黄淮平原冬小麦、夏玉米等作物的土壤水分平衡方程。
The fate of nitrogen fertilizer in current crop and succession crops in winter wheat and summer maize rotation system were studied using field 15n micro-plot.
采用田间微区1 5n示踪试验研究了肥料氮在冬小麦、夏玉米当季和后茬的去向。
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