2009•Guizhou nongye kexueRequires access
The effect of combined application of organic manure and chemical fertilizers on yield of winter wheat and nitrogen utilization.
Liu Hai, Jianguo Huang, Ling Yuan, Zhou XinBin
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Abstract
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/hm2,20.35% 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.