Title: Effect of Nitrogen Management on Grain Yield and Nitrogen Utilization under the System of Intensified Rice Cultivation
Abstract: The experiment of rice intensification system(SRI) was carried out using super hybrid rice(Zhongzheyou 1) as material to investigate the grain yield and nitrogen utilization under different nitrogen managements.The results showed: the grain yield of SRI was 11.1%-15.2% greater than that of CK,and the assimilation efficiency,agronomic efficiency,and physiological efficiency of nitrogen fertilizer were 5.3%-26.9%,67.2%-92.2%,and 6.0%-80.5% greater than those of CK,respectively.Hence,nitrogen utilization efficiency,and eliminated accumulation of N fertilizer and its impact on the environment were enhanced under the system of rice intensification.Moreover,the high-yield mechanism of N fertilizer management under the system of rice intensification was discussed in the paper.
Publication Year: 2007
Publication Date: 2007-01-01
Language: en
Type: article
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Cited By Count: 1
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