2008•Guangdong nongye kexueRequires access

Effect formula fertilization by soil testing on yield of rice

Zhi Tan

Abstract

A 3414 field trials of rice was conducted in the testing ground of Hongfeng in 2007.The results indicated that the yield of N2P2K3 treament was the highest(8 184.02 kg/hm2).According to the results of effect model,N、P2O5、K2O fertilization of the ceiling was 174.8 kg/hm2、38.2 kg/hm2、218.8 kg/hm2.The optimization formula of rice for the composition of fertilizer included N 126.06～170.50 kg/hm2,P2O5 31.44～38.20 kg/hm2,K2O 97.84～189.03 kg/hm2.

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Key concepts: Human fertilization, Fertilizer, Yield (engineering), Mathematics, Ceiling (cloud), Agronomy, Animal science, Biology