Plant Growth and Nitrogen Utilization of the System of Rice Intensification under Different Fertilization Patterns and Tillage Ways

Abstract

Abstract: Experiment was conducted to compare plant growth and nitrogen utilization of the system of rice intensification (SRI) under different fertilization patterns and tillage at the late season in 2005. The results were as follows. Rice harvested the highest grain yield with urea plus pig muck fertilization and intensification cultivation under no-tillage, while the highest grain yield with only urea fertilization and conventional cultivation under conventional tillage, but the difference of yield were not significant at both tillage patterns. Rice plants accumulated more nitrogen with only application of urea and conventional cultivation than that with only pig muck application and intensification cultivation, but its nitrogen grain production efficiency and nitrogen harvest index decreased. Compared between tillage patterns, nitrogen transportation efficiency and nitrogen agronomy efficiency under no-tillage were higher significantly than those under conventional tillage, but nitrogen recovery efficiency under conventional tillage was 127.95% more than that under no-tillage, the difference was significant.

CLC Number:

S511

Guo Li, Liang Tianfeng, Tang Maoyan, He Lijian, Li Ruping, Yang Weifang, Xia Yu, Jiang Ligeng. Plant Growth and Nitrogen Utilization of the System of Rice Intensification under Different Fertilization Patterns and Tillage Ways[J]. Chinese Agricultural Science Bulletin, 2007, 23(1): 185-185.

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Plant Growth and Nitrogen Utilization of the System of Rice Intensification under Different Fertilization Patterns and Tillage Ways

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