少耕覆盖与不同氮磷钾配比对马铃薯产量效益和养分利用的影响  

Effects of Various NPK Combinations on Yield,Economic Benefit and Nutrition Utilization of Potato with Mulching and Reduced Tillage

作　　者：尹梅[1] 刘自成 任齐燕 陈华[1] 陈检锋[1] 付利波[1] 王志远[1] 洪丽芳[1] 苏帆[1] 

机构地区：[1]云南省农业科学院农业环境资源研究所,云南昆明650205 [2]云南省砚山县农业技术推广中心,云南砚山663100 [3]云南省砚山县土壤肥料工作站,云南砚山663100

出　　处：《西南农业学报》2016年第3期595-598,共4页Southwest China Journal of Agricultural Sciences

基　　金：公益性行业(农业)科研专项经费项目(201203013;201503127);国家科技支撑计划项目(2012BAD40B01);国家水体污染控制与治理科技重大专项滇池项目面源污染防控项目(2012ZX07102-003)

摘　　要：采用田间试验方法,研究不同氮磷钾配比对少耕覆盖马铃薯的产量、经济效益和养分利用的影响,比较相同养分管理下传统耕作和少耕覆盖的马铃薯产量、效益和养分利用。结果表明,相同养分用量的少耕覆盖比传统栽培提高马铃薯产量65.33%,净收益高125.63%;在少耕覆盖的模式下,N0P0K0处理的产量和经济效益最低,N2P3K2、N3P2K2和N2P2K3处理的产量和经济效益高;少耕覆盖马铃薯的NPK肥料农学效率和NPK肥偏生产力均随施肥量增加而降低。该试验中,N2P2K2处理的肥料利用效率高和产量效益好,是较佳处理。Field experiment was conducted to study the effects of various NPK combinations on yield, economic benefit and nutrition utilization of potato with mulching and reduced tillage, to investigate the effects of traditional tillage and mulching and reduced tillage on yield, economic benefit and nutrition utilization of potato with same nutrition management. The results indicated that the yield of potato with mulching and reduced tillage was higher by 65.33 % than that with traditional tillage, and the economic benefit of potato with mulching and reduced tillage was higher by 125.63 % than that with traditional tillage. With mulching and reduced tillage, the yield and economic benefit with N0P0K0 treatment were lower than that with other treatments and the yields and economic benefits with N2P3K2, N3P2K2 and N2P2K3 treatment were higher than that with other treatments. Agronomic NPK efficiency and NPK partial factor product activity of potato with mulching and reduced tillage decreased with the amount increasing of NPK application. The treatment of N2P2K2 gained high nutrition utilization, high yield, high economic benefit, was the optimum treatment in this experiment.

关 键 词：氮磷钾 马铃薯 少耕覆盖 产量 经济效益 养分利用 

分 类 号：S532[农业科学—作物学]