肥料配施对冬小麦产量和氮肥利用效率的影响

采用大田试验方法研究有机肥与化肥配施对冬小麦产量和氮肥利用效率的影响.结果表明:有机肥与化肥配施能显著提高冬小麦产量,尤其是猪粪、玉米秸秆与化肥配施处理,产量高达5705.3 kg/hm2,比未施肥处理和习惯施肥分别增产20.35%和8.98%.有机肥与化肥配施处理的氮收获指数和氮肥农学效率均高于习惯施肥处理.其中,猪粪、玉米秸秆与化肥配施处理的氮肥农学效率为8.04 kg/kg,而习惯施肥处理的氮肥农学效率仅为3.30kg/kg.

The Effect of Combined Application of Organic Manure and Chemical Fertilizers on Yield of Winter Wheat and Nitrogen Utilization

A field experiment was carried OUt to study the effect of combined application of organic manure and chemical fertilizers on yield of winter wheat and nitrogen utilization. The results showed that the combined application of organic manure and chemical fertilizers could significantly increase yield of winter wheat and the yield with applying pig manure, maize straw and chemical fertilizer was up to 5705. 3 kg/hm~2, 20.35% and 8.98% higher than CK(without applying any fertilizer) and the conventional application pattern. The nitrogen harvest index and agronomic nitrogen utilization efficiency of the combined application of organic manure and chemical fertilizers were higher than the conventional application pattern and the agronomic nitrogen utilization efficiency with applying pig manure, maize straw and chemical fertilizer was 8.04 kg/kg and the agronomic nitrogen utilization efficiency with the conventional application pattern was 3.30 kg/kg.