| 垄膜沟灌马铃薯测土施肥指标体系——以甘肃省张掖市山丹县为例 |
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| 引用本文： | 鲁天文,刘祁峰,张卫峰,王朝东.垄膜沟灌马铃薯测土施肥指标体系——以甘肃省张掖市山丹县为例[J].水土保持通报,2015,35(1):291-296. |
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| 作者姓名： | 鲁天文 刘祁峰 张卫峰 王朝东 |
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| 作者单位： | 甘肃省山丹县农业技术推广中心;中国农业大学资源与环境学院中化化肥农大研究中心 |
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| 基金项目： | 农业部测土配方施肥补贴项目(2007—2010) |
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| 摘 要： | 目的]确定施肥指标体系,为垄膜沟灌马铃薯提供精确的施肥配方。方法]2007—2010年在甘肃省张掖市山丹县进行马铃薯"3414"田间肥效试验,分析不同土壤肥力水平下马铃薯土壤有效养分含量与相对产量的相关性,并依此确定土壤养分丰缺指标和推荐施肥量。结果]将山丹县马铃薯田间土壤碱解氮、有效磷、速效钾含量等级划分为低、较低、中、较高、高5级,对应推荐施氮量分别为>225.7,193.3~225.7,117.2~193.3,161.0~177.2,<161.0kg/hm2;推荐施磷量分别为>164.3,146.5~164.3,137.6~146.5,128.6~137.6,<128.6kg/hm2;推荐施钾量分别为>166.8,149.7~166.8,141.1~149.7,132.5~141.1,<132.5kg/hm2。经过150个示范点的调研分析发现,利用测土配方施肥技术增产率达9.8%,节约化肥67.5kg/hm2,节本506.3元/hm2,节本增效3 286.5元/hm2。结论]垄膜沟灌马铃著测土配方施肥技术可以实现普遍增产和增效。
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| 关 键 词： | 马铃薯 丰缺指标 推荐施肥 山丹县 |
| 收稿时间： | 2014/3/21 0:00:00 |
| 修稿时间： | 2014/3/18 0:00:00 |
Soil Testing and Fertilization Recommendation Index System for Mulched Potato in Shandan County of Zhangye City, Gansu Province |
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| LU Tianwen,LIU Qifeng,ZHANG Weifeng and WANG Chaodong.Soil Testing and Fertilization Recommendation Index System for Mulched Potato in Shandan County of Zhangye City, Gansu Province[J].Bulletin of Soil and Water Conservation,2015,35(1):291-296. |
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| Authors: | LU Tianwen LIU Qifeng ZHANG Weifeng and WANG Chaodong |
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| Institution: | LU Tianwen;LIU Qifeng;ZHANG Weifeng;WANG Chaodong;Shandan Agricultural Technology Extension Center;SINOCHEM-CAU Fertilizer R&D Center,College of Resources and Environmental Science,China Agricultural University; |
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| Abstract: | Objective] To determine the fertilization index system and provide the precision fertilization formula for mulched potato system in Shandan County of Zhangye City, Gansu Province.Methods] Fourteen field experiments were conducted in mulched potato system in Shandan County of Zhangye City, Gansu Province from 2007 to 2010. The relationship between the soil available nutrient content and the corresponding crop yield was established.Results] The soils in Shandan County was classified into 5 different categories such as the lowest, lower, medium, higher and the highest according to the content of alkali-ydrolyzable nitrogen, available phosphorus and available potassium. Fertilizer application rate was recommended for each soil categories, such as >225.7, 193.3~225.7, 117.2~193.3, 161.0~177.2 and <161.0 kg/hm2 for nitrogen, >164.3, 146.5~164.3, 137.6~146.5, 128.6~137.6 and <128.6 kg/hm2 for phosphorus, >166.8, 149.7~166.8, 141.1~149.7, 132.5~141.1 and <132.5 kg/hm2 for potash. The new technologies can improve potato yield by 9.8%, save fertilizer by 67.5 kg/hm2, reduce cost by 506.3 yuan/hm2, and increase economic profit by 3 286.5 yuan/hm2.Conclusion] The technologies of soil testing and fertilization formula can improve potato yield and increase economic profit generally. |
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| Keywords: | mulched potato abundance index fertilizer recommendation Shandan County |
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