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黄淮麦区麦棉两熟种植小麦平衡施肥 ,增加了小麦的有效穗数、穗粒数、千粒重 ,从而提高了小麦产量水平 ,小麦比不施肥的对照增产 2 4 .3%～ 56 .8% ;施肥能显著提高水分生产效率 ,其效率与施入化肥养分总量之间呈典型的抛物线关系 ,施肥处理每毫米水在每公顷土地上比不施肥的对照增产小麦 1.9886～ 4 .2 6 56 kg。麦棉两熟小麦最佳施肥量为 377.12～ 389.15kg/hm2 ,N∶P2 O5∶ K2 O=1∶0 .5∶ 0 .5
The balanced fertilization of wheat and cotton double cropping wheat in Huanghuai wheat increased the effective spikes, grains per spike and 1000-grain weight of wheat, thus increased the wheat yield. The yield of wheat increased by 24.3% ~ 56.8% compared with the control without fertilization %; Fertilization can significantly improve the water production efficiency, the efficiency and the total amount of fertilizer applied into a typical parabolic relationship, fertilization treatment per hectare of water per hectare of land than the non-fertilized wheat yield 1.9886 ~ 4 .26 56 kg. The optimum fertilization amount of wheat and wheat double ripening was 377.12 ~ 389.15kg / hm2, N: P2 O5: K2 O = 1: 0 .5: 0.5