论文部分内容阅读
水稻生长后期常需要供给一定的肥料，尤其在供肥较差而肥料施用不足的瘦田、砂田、磅田、浅泥田的后期补肥更为重要。（一）补肥原则水稻的后期补肥应以农肥为主，脱肥较早较重的田块可撤施尿素或叶面喷施磷酸二氢钾，加适量的尿素。（二）施肥方法1．复水后在挺苞期（抽穗前5
Often need to supply a certain amount of fertilizer in the later stage of rice growth, especially in lean fields, sand fields, pound fields and shallow mud fields where fertilizer is poorly applied and poor fertilizer is more important. (A) the principle of fertilizer The late rice should be used mainly to fertilizer, fertilize the earlier heavier plots of urea or foliar application of potassium dihydrogen phosphate, add appropriate amount of urea. (B) fertilization method 1. After rehydration in the Ting bracts (5 before heading