2009•Hubei nongye kexueRequires access

The "3414" Fertilization Effect of Late-season Rice and Fertilizer Recommendation

Yu Peng

Abstract

A 3414 fertilizer experiment was carried out in Chibi city to determine the effect of nitrogen, phosphorus and potassium fertilization on late-season rice. The result showed that the yield of late-season rice increased significantly with N , P and K fertilizer application by 1500,750 and 1 350 kg·hm-2, and by 23.13%, 10.33% and 20.3%. Compared with the control, income 1609.5, 822.8 and 1 612.7 yuan·hm-2,respectively. According to fertilizer effect,N, P2O5 and K2O application rate to get the highest yield were 179.9 kg·hm-2, 52.7 kg·hm-2 and 108.2 kg·hm-2, and N, P2O5 and K2O application rate to get the highest profit were 146.7 kg·hm-2, 46.8 kg·hm-2 and 94.5 kg·hm-2, respectively.

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Key concepts: Human fertilization, Fertilizer, Phosphorus, Yield (engineering), Mathematics, Potassium, Nitrogen, Potash