Unde rotation of medium rice and wheat, zinc fertilizer could be only applied on rice.
如果是中稻和小麦轮作，则可以只在水稻上施用锌肥。
Appropriate sowing date helped improve productivity with respect to key inputs, while appropriately delayed crop rotation was awarding to annual economic productivity of rice and wheat.
适期播种有利于提高稻麦周年的一些关键性投入的生产力，适当延迟稻麦换茬时间可以提高稻麦周年经济生产力。
The result showed that N2O and NO emissions from vegetable field and winter wheat field of rice-wheat rotation systems in southeast China had different seasonal variation rules.
结果表明，蔬菜地和华东稻麦轮作生态系统冬小麦田的NO和N_2O排放具有不同的季节变化规律。
The influence of different tillage and fertilization methods on Mn deficiency in wheat in soil with rice-wheat rotation was studied in Sichuan province.
利用田间试验研究了不同耕作施肥措施对四川水早轮作土壤小麦缺锰的影响。
Whether was potassium balance kept in purple soil cornfield ecosystem under a rotation of rice and wheat?
稻—麦轮作期紫色土农田生态系统钾素平衡状况怎样？
The study on the transformation of applied phosphorus and availability of residual phosphorus in wheat rice rotation was conducted on calcareous soils for three years.
运用新的石灰性土壤无机磷分级方法研究了冀南麦稻轮作高产区土壤无机磷的形态，水溶性磷肥施于稻季和施于麦季土壤中的转化特性。
The study on the transformation of applied phosphorus and availability of residual phosphorus in wheat rice rotation was conducted on calcareous soils for three years.
运用新的石灰性土壤无机磷分级方法研究了冀南麦稻轮作高产区土壤无机磷的形态，水溶性磷肥施于稻季和施于麦季土壤中的转化特性。
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