| 江汉平原腹地中稻氮磷钾肥效及其适宜用量 |
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| 引用本文： | 刘新伟,龚德平,娄希凤,韩玲君,杨德桦,赵竹青.江汉平原腹地中稻氮磷钾肥效及其适宜用量[J].福建农业学报,2012(1):18-23. |
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| 作者姓名： | 刘新伟 龚德平 娄希凤 韩玲君 杨德桦 赵竹青 |
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| 作者单位： | 华中农业大学资源与环境学院;湖北省江北农场土壤肥料工作站 |
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| 基金项目： | 国家“十一五”科技支撑计划重点项目(2008BADA4B08);国家测土配方施肥项目(2009) |
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| 摘 要： | 通过在江汉平原腹地江北农场5个分场布置中稻的"3414"肥料效应试验,研究了氮、磷、钾肥对中稻产量和经济效应的影响。结果表明,施肥对中稻的增产效果明显,中稻施用氮肥的效果最好,磷肥次之,钾肥最小。稻谷最高增产695.1～2 414.7kg.hm-2,相应增产率为8.6%～37.8%,纯增收1 011.2～3 563.5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,确定中稻的最佳施肥量为纯N180～200kg.hm-2,P2O555～60kg.hm-2,K2O 50～60kg.hm-2。
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| 关 键 词： | 江汉平原 江北农场 中稻 “3414”肥料效应方程 推荐施肥量 |
Fertilizer Efficiency and Optimum Recommendation of NPK Fertilizer for Mid-season Rice in the Hinterland of Jianghan Plain |
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| LIU Xin-wei,GONG De-ping,LOU Xi-feng,HAN Ling-jun,YANG De-hua,ZHAO Zhu-qing.Fertilizer Efficiency and Optimum Recommendation of NPK Fertilizer for Mid-season Rice in the Hinterland of Jianghan Plain[J].Fujian Journal of Agricultural Sciences,2012(1):18-23. |
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| Authors: | LIU Xin-wei GONG De-ping LOU Xi-feng HAN Ling-jun YANG De-hua ZHAO Zhu-qing |
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| Institution: | 1(1.College of Resources and Environment,Huazhong Agricultural University,Wuhan,Hubei 430070,China; 2.Jiangbei farm Soil and Fertilizer Station of Hubei Province,Jingzhou,Hubei 420291,China) |
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| Abstract: | A "3414" fertilizer experiment was carried out in Jiangbei farm of five fields to determine the yield and economic effect of nitrogen,phosphorus and potassium fertilization on mid-season rice.The result showed that the effect of fertilization on mid-season rice yield increase is obvious: the effect of N fertilization on mid-season rice yield and economic benefit was largest,the next was P,and K fertilization was the smallest.The highest in yield of N,P and K were 695.1-2 414.7 kg·hm-2,and which were 8.6%-37.8% higher than contro1.The net income of N,P and K were 1 011.2-3 563.5 Yuan·hm-2,respectively.According to fertilizer effect,N,P2O5 and K2O application rate to get the highest profit were 180-200 kg·hm-2,P2O5 55-60 kg·hm-2,and K2O 50-60 kg·hm-2,respectively. |
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| Keywords: | Jianghan plain mid-season rice "3414"fertilizer response equation fertilizer recommendation |
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