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.
通过减苗、扩行、调肥和控水等技术可培育高产或超高产群体。对稻麦超高产指标体系和技术途径等进行了讨论。
The index system of and approaches to the super high-yielding rice and wheat were also discussed in the paper.
延长水稻生育期和攻取大穗是稻麦周年高产的关键。
Moreover, prolonging rice growth duration and developing large panicles improved annual grain yield of rice and wheat.
延长水稻生育期和攻取大穗是稻麦周年高产的关键。
Moreover, prolonging rice growth duration and developing large panicles improved annual grain yield of rice and wheat.
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