Effects of Nitrogen Fertilizer on the Yield and Nutrition Absorption of Artificial Leymus chinensis Grassland
The purpose of this project was to study the effects of nitrogen fertilizer on the dry grass yield and nutrition absorption of artificial Leymus chinensis grassland and provide the basis for the resonble application of nitrigen fertilizer.Leymus chinensis ‘ Zhongke No.2’ was used as test material and five nitrogen fertilizer levels were set up.The contents of N,P2 O5,K2 O at different growth stages were analyzed.Dry grass yield of Leymus chinensis‘Zhongke No.2’ was also measured.The results showed that nitrogen fertilizer could significantly increase the dry grass yield of Leymus chinensis.The nitrogen fertilizer level of 133.8 kg · hm-2 was the optimum to the dry grass yield that was 13134.7 kg · hm-2.The dry grass yield was increased 55.5 kg by pure nitrogen per kilogram.Nitrogen fertilizer could increase the N,P2O5,K2O uptake and accumulation of Leymus chinensis.
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NSTL
万方数据
维普
