Title: Effect of Different Controlled-release N Fertilizers on Nitrogen Absorption and Yield of Maize
Abstract:Field experiment was conducted to investigate the effects of TSCU and PSCU on the total N content,N up-take,N absorption rate,yield of maize plants,as well as soil NO3--N content.The results showed th...Field experiment was conducted to investigate the effects of TSCU and PSCU on the total N content,N up-take,N absorption rate,yield of maize plants,as well as soil NO3--N content.The results showed that N up-take at mature maize in TSCU and PSCU treatments were 163.32 kg·hm-2 and 178.54 kg·hm-2 respectively,increased 26.62 kg·hm-2 and 41.84 kg·hm-2 respectively compared with PU treatment,a significant difference was observed between treatments.The yield of maize in TSCU and PSCU treatments increased 21.27% and 33.36% respectively compared with PU treatment.And N absorption rate increased 18.68% and 27.47% respectively.After the maize maturity,soil NO3--N content in controlled-release N fertilizers treatments was still higher than that of PU treatment.Compared with PU treatment of maize that these two kinds of controlled release N fertilizers under the black soil ecological conditions,dry matter weight,N up-take and yield of maize were increased by TSCU and PSCU treatments,the environmental pollution was also reduced.The best controlled-release N fertilizer was PSCU.Read More
Publication Year: 2012
Publication Date: 2012-01-01
Language: en
Type: article
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