| 四川省油菜施肥状况调查 |
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| 引用本文： | 徐华丽,鲁剑巍,李小坤,王寅,苏伟.四川省油菜施肥状况调查[J].西南农业学报,2011,24(4). |
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| 作者姓名： | 徐华丽 鲁剑巍 李小坤 王寅 苏伟 |
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| 作者单位： | 华中农业大学资源与环境学院,湖北武汉,430070 |
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| 基金项目： | 国家“十一五”科技支撑计划重点项目(2010BAD01B05); 油菜现代产业技术体系建设(nycytx-005) |
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| 摘 要： | 根据四川省油菜种植农户随机抽样调查结果,分析研究了油菜施肥状况及存在的问题.结果表明,尿素和碳铵的施用比例分别为78.5％、50.3％,过磷酸钙和复合肥的比例均为40.0％左右,未施用单质K素化肥.全省油菜N、P2O5 、K2O平均总投入量分别为251、87、66 kg/hm2,N∶P2O5∶ K2O为1∶0.35∶0.26.化肥养分投入量分级结果表明,施N量＞150 kg/hm2的比例为63.2％,施P2O5量＜60 kg/hm2的比例为69.4％,施K2O量＜80 kg/hm2的比例为96.9％.油菜施肥次数为2-3次,基N比例适宜的农户仅占13.1％.全省油菜平均单产2076kg/hm2,纯收益为4574元/hm2.施肥中存在的主要问题是:①存在氮肥过量施用和偏施的现象；②氮磷钾养分比例不协调,尤其钾肥比例偏低；③氮肥基追比例不合理,施肥技术有待于进一步提高.
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| 关 键 词： | 四川 油菜 施肥 调查 |
Investigation of Fertilization Condition of Rapeseed in Sichuan Province |
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| XU Hua-li,LU Jian-wei,LI Xiao-kun,WANG Yin,SU Wei.Investigation of Fertilization Condition of Rapeseed in Sichuan Province[J].Southwest China Journal of Agricultural Sciences,2011,24(4). |
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| Authors: | XU Hua-li LU Jian-wei LI Xiao-kun WANG Yin SU Wei |
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| Institution: | XU Hua-li,LU Jian-wei,LI Xiao-kun,WANG Yin,SU Wei(College of Resources and Environment,Huazhong Agricultural University,Hubei Wuhan 430070,China) |
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| Abstract: | Sampling survey of the rapeseed fertilization by farmers in Sichuan province in 2008 was conducted.Based on the investigative data,the situation and problem of the rapeseed fertilization in Sichuan province was studied.The results showed that the proportion of farmers applying urea and ammonium bicarbonate was respectively 78.5% and 50.3%;however,the ratio of farmers applying superphosphate and compound fertilizer was both about 40%,with no single chemical K fertilizer used.The average application amount of... |
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| Keywords: | Sichuan Rapeseed Fertilization Investigation |
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