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《半干旱残塬区冬小麦“3414”肥料效应试验初探-论文.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、内蒙古农业科技2014(4):37~39InnerMongoliaAgncuhuralScienceAndTechnology半干旱残塬区冬小麦“3414”肥料效应试验初探陈世平.王伟(1.彭阳县种子管理站,宁夏彭阳7565002;2.彭阳县农业技术推广服务中心,宁夏彭阳756500)摘要:通过“3414”完全方案田间试验,探讨在宁南山区半干旱残塬区种植冬小麦农家肥、氮、磷肥的最佳施用量。运用shyfxExcel软件分析建立冬小麦目标产量数学模型。试验结果表明:氮肥是限制产量的主要因素。初步得出残塬区黑垆土(孟塬黑垆土)冬小麦产量大于300kg/667m时施农家肥2500k
2、#667m2,N11.6kg/667m2,P20510.4kg/667m;最高产量319.8k~667m时施农家肥2900kg/667m2.N13.7kg/667m2.P20512.4kg/667m2;最佳产量297.4k~667m2时施农家肥2000kg/667m=、N10.5k~667m2、P20丑.5kg/667m。;氮肥基、追肥各占50%,在今后的农业生产中应广施农家肥.因地制宜施用氮、磷肥料。关键词:冬小麦;干旱残塬区;“3414”方案;推荐施肥中圈分类号:S14—33文献标识码:A10.3969~.issn.1007—0907.2014.04.013文章编号:1
3、007—0907(2014)04-0037-03Studyon”3414”FertilizerEfectTestofWinterWheatinSemi-aridGullyAreaCHENShi—ping(SeedStationofPengyang,Pengyang756500,China)Abstract:Throughthe”3414”completelyplanoffieldexperiment,thebestdosageoffarmyardmanure,nitrogenandphosphorusfertilizerappliedinplantingwinterwhea
4、tinthesouthofNingxiasemi-aridgullyareawasdiscussedinthispaper.UsingshyfxExcelsoftwareanalysisofthemathematicalmodelofthewinterwheatproductiontarget,itshowedthatnitrogenwasthemainfactorrestrictingoutput.PreliminaryconcludedthatgI1llyareaheilusoil(mengyuanheilusoil)ofwinterwheatyieldwasmoret
5、han300kg/667m~,thedosageoffarmyardmanure2500kg/667m2,N11.6666.7kg/m2,P20510.4kg/667m2;Whenthemaximumyieldof319.8kg/667m~,thedosageoffarmyardmanure2900kg/667m2,N13.7kg/667m~,P20512.4kg/667m;whenthebestyieldat297.4k~667m2,thedosageoffarmyardmanure2000kg/667m2,N10.5kg/667m~,P2052.5kg/667m;Nit
6、rogenbasalfertilizerandtopdressingfertilized50%each,farmyardmanureshouldbewidelyappliedinagriculturalproductioninthefuture,andnitrogenandphosphorusfertilizerusedshouldadjusttolocalconditions.Keywords:Winterwheat;Semi一dgullyarea;”3414”plan;Recommendedfertilization为了指导和帮助农民广施农家肥。科学、经济、环保施用化壤
7、养分平均含量有机质9-3g,I【g、全氮0.65g,kg、碱解氮51.6rag/肥.降低农业生产成本,增加农民收入,切实解决农业和农村面kg、有效磷4.9mg/kg、速效钾141.9mg/kg,底土层(20~40cm):~/L源污染问题.设肥料效应田问试验,为半干旱残塬区种植冬小麦质平均含量为6.4g/kg、全氮0.51g,l(g、碱解氮47.9mg,l(g、有效磷合理施肥提供科学依据2.3mg/kg、速效钾84.9mg,I【g,农家肥有机质平均含量为21.51试验材料和方法kg、全氮1.21gag、碱解氮95.3
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