2011•Journal of Hebei Agricultural SciencesRequires access
Effects of Nitrogen Distribution on the Yield of Summer Maize at Different Growth Stages
Zhou Jing
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Abstract
The effects of nitrogen distribution on the yield of summer maize at different growth stages were studied.The results showed that the effect of multiple fertilization was better than that of concentrated fertilization,which could increase the nitrogen use efficiency and the yield of maize by 30.98%-72.27% and 8.13%-18.97%,respectively.The nitrogen distribution was closely related to the growth and development of maize.The ample spike fertilizer was the key of high yield.The effects of 25% of base fertilizer,25% of jointing fertilizer and 50% of spike fertilizer were the best,the nitrogen use efficiency could reach 44.10%,and the yield could reach 12 454.5 kg/hm2.