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作者	单位
刘新伟,龚德平,巩细民，王巍，娄希凤,韩玲君,杨德桦,赵竹青	（1.华中农业大学资源与环境学院，湖北武汉 430070； 2.湖北省江北农场土壤肥料工作站，湖北荆州 420291； 3.湖北省土壤肥料工作站，湖北武汉 340070）

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中文摘要:

为给小麦测土配方施肥体系的建立提供参考，以小麦品种郑麦 9023 为试验材料，通过在江北农场五个分场布置小麦“3414”肥料效应试验，研究了氮、磷、钾肥对小麦产量和经济效益的影响。结果表明，施肥对小麦的增产效果明显，小麦施用氮肥的增产效果最好，磷肥次之，钾肥最小，相应增产率为17.5%～69.5%，纯增收入为917.2～2 464.1元·hm^-2。通过配置三元二次和一元二次肥效模型，结合田间试验实际情况，确定小麦的最佳施肥量为纯N 140～160 kg·hm^-2，P₂O5 50～60 kg·hm^-2，K₂O 50～60 kg·hm^-2。

英文摘要:

In order to provide practical basis for establishing the system of soil testing and formulated fertilization on wheat production in Jiangbei farm, with zhengmai 9023 as the test material, a “3414” fertilizer experiment was carried out in five fields of Jiangbei farm to determine the yield and economic effect of nitrogen, phosphorus and potassium fertilization on wheat. The results showed that the effect of fertilization on wheat yield increase was obvious, the effect of N fertilization on wheat yield and economic benefit was the largest，the next was P, and that of K fertilization was the smallest. The yield increase of N，P and K ranged in 664.8～1501.6 kg/hm, which were 17.5%～69.5% higher than that control. The net income of N, P and K fertilization ranged in 917.2～2464.1 yuan/hm. According to fertilizer effect, the recommended application rate of N, P₂O5 and K₂O to get the highest profit was N 140～160 kg/hm, P₂O5 50～60 kg/hm and K₂O 50～60 kg/hm, respectively.

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