2008•Unpublished venueRequires access
Effects of nitrogen application on dry matter accumulation and yield of hybrid rice
Dai Ming-fu
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Abstract
Methods of field experiment were employed to study the effects of nitrogen application on dry matter accumulation and yield of hybrid rice.The test crop varieties were Ⅱyou 2027 and 36 you 959 medium indica hybrid rice and N fertilization was 240 kg/hm2.The results showed that yield and dry matter accumulation of hybrid rice could raise due to increasing N topdressing rate properly.When ratio of base application,topdressing at tillering and heading stage was 4∶3∶3,two hybrid rice could achieve maximum yield of 8314.8 kg/hm2 and 9399.5 kg/hm2,respectively,dry matter accumulation,dry weight of root and dry matter accumulation intensity at late growth stage could reach the highest.