Rice-wheat rotation system 稻麦轮作 ; 稻麦轮作系统
rice-wheat rotation 稻麦轮作
rice wheat rotation 稻麦轮作
rice-wheat rotation ecosystem 稻麦轮作系统
winter-wheat and rice rotation system 小麦
no-tillage wheat field rice-wheat rotation 稻茬免耕麦田
Rice and wheat rotation 沿黄稻麦轮作区
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。
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。
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？
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