2015•Hunan Agricultural SciencesRequires access

Fertilizer Efficiency Experiment of 3414 Formula Fertilization on Middle-season Rice in Ningyuan County

Wang Xin-chen

Abstract

In order to reduce the using amount of fertilizer on middle-season rice in Ningyuan County and improve the fertilizer use efficiency, the fertilizer efficiency was discussed by use of the 3414 formula experiment. The results showed that: Potash fertilizer is a major element affecting the yield of middle-season rice and its relative yield was 87.97%; medium rice the largest NPK fertilization amounts were N 10.88 kg/667m2, P 2.44 kg/667m2, K 6.22 kg/667m2, corresponding to a yield of 526.6 kg/667m2; optimum fertilization amounts were N 9.0 kg/667m2, P 2.25 kg/667m2, K 5.65 kg/667m2, corresponding to a yield of 524.45 kg/667m2.

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Key concepts: Potash, Fertilizer, Human fertilization, Yield (engineering), Mathematics, Agronomy, Biology, Physics