Title: Effect of N Fertilizer Rate Applied and Its Ratio on Yield of Summer Maize
Abstract: Experiments of N fertilizer applied rate and its ratio on summer maize Xingkang No.6 were conducted among 2002 - 2004. There is no significant yield difference between N fertilizer rates from 150 kg/ha to 337.5 kg/ha applied at 45th day after sowing. The highest economy benefit was obtained at 225 kg/ha of N fertilizer rate. Yield of N fertilizer applied at both elongation stage and booting stage was significant higher than the yield of N fertilizer applied only at booting stage. The optimal ratio of N fertilizer applied at those two stages was 4∶6, at which there was no significant yield difference between N fertilizer applied rates from 157.5 kg/ha to 315 kg/ha. The highest economy benefits was obtained at 210 kg/ha of N fertilizer rate. There was no interacting between N fertilizer rate applied and its ratio at elongation stage and booting stage.
Publication Year: 2007
Publication Date: 2007-01-01
Language: en
Type: article
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