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Effects of Nutrient Expert Recommended Fertilization on Yield, Absorption and Utilization of Nutrient of Winter Wheat in Fluvo-aquic Soil
Author(s): 
Pages: 120-125
Year: Issue:  1
Journal: Journal of Triticeae Crops

Keyword:  Winter wheatNutrient expert for wheatRecommend fertilizationYieldFertilizer use efficiency;
Abstract: 为明确小麦养分专家系统推荐施肥效果,通过田间试验比较分析了小麦养分专家系统和AgroServices International Inc (ASI)法推荐施肥下不同质地潮土冬小麦产量、经济效益、养分吸收积累及肥料利用效率的差异.结果表明,在粘壤质和砂壤质潮土上,冬小麦施肥分别增产6.05%~21.92%和8.67%~31.49%;小麦养分专家系统推荐施肥较农户习惯施肥分别增产4.91%和7.35%,增收10.30%和8.42%;ASI法推荐施肥较农户习惯施肥分别增产4.63%和4.98%,增收12.18%和5.77%.小麦养分专家系统推荐施肥的氮、磷、钾肥农学效率分别为6.26、5.31和6.71 kg· kg-1,氮、磷、钾肥料利用率分别为26.06%、15.28%和43.41%.小麦养分专家系统推荐施肥促进了冬小麦对氮磷钾养分的吸收和利用,具有明显的增产增收效应,肥料利用效率也高于全国平均水平,可在潮土区推广应用.
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