2014•Mailei zuowu xuebaoRequires access
Effects of Nutrient Expert Recommended Fertilization on Yield,Absorption and Utilization of Nutrient of Winter Wheat in Fluvo-aquic Soil
SU Ruiguan
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Abstract
In order to realize the effects of scientific fertilization in winter wheat,field experiments were conducted to study the effects on yield,nutrient accumulation,economic benefit,and fertilizer use efficiency of winter wheat of fertilization recommended by nutrient expert and agro-services international inc(ASI)for wheat.The results showed that yield was increased by 6.05%~21.92%and 8.67%~31.49%in the clay soil and fluvo-aquic soil,respectively by applying fertilizer.Compared with the conventional fertilizer application,nutrient expert recommended fertilization for wheat increased grain yield by 4.91% and 7.35% and economic benefit by 10.30% and 8.42%,respectively;fertilization recommended by ASI increased grain yield by 4.63%and 4.98%and economic benefit by 12.18%and5.77%,respectively.The average agronomic efficiency of N,P2O5and K2O were 6.26,5.31and6.71kg·kg-1,and fertilizer use efficiency were 26.06%,15.28% and 43.41%,respectively,based on nutrient expert recommended fertilization for wheat.Nutrient expert recommended fertilization for wheat could promote the absorption and accumulation of N,P and K of winter wheat,improve yield and income obviously,and fertilizer use efficiency as well.This nutrient expert recommended fertiliza-tion for winter wheat is worthy of popularization and application.