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1、第32卷第5期大豆科學V0I.32NO.52013盤三10月S0YBEANSCIENCE0ct.20l3栽培措施對周豆19產(chǎn)量及農(nóng)藝性狀的影響耿臻,楊青春,舒文濤,李金花,張保亮,張東輝,劉健,王朝亮(1.周口市農(nóng)業(yè)科學院,河南周El466001;2.地神種業(yè)農(nóng)科所,河南西華466632;3.鄲城縣農(nóng)技站,河南鄲城477150)摘要:為了充分發(fā)揮大豆新品種周豆l9的產(chǎn)量潛力,采用裂一裂區(qū)試驗設計,研究了不同施肥組合、密度、化控處理對周豆l9農(nóng)藝性狀及產(chǎn)量的影響。結(jié)果表明:周豆19株高、單株粒數(shù)、單株粒重隨施肥次數(shù)的增多而增加;隨密度的增加,株高和底莢高增加,分枝數(shù)、單株莢數(shù)、單株粒數(shù)、
2、單株粒重和百粒重均減??;化控使株高和底莢高顯著降低,但對主莖節(jié)數(shù)沒有影響;產(chǎn)量隨著施肥次數(shù)的增多而增加,隨著密度的增加呈先升后降的趨勢;各因素互作以施基肥+2次葉面噴肥、密度30萬株·hm~、不進行化控處理產(chǎn)量(3487.9kg·hm)最高。關鍵詞:周豆19;栽培措施;產(chǎn)量;農(nóng)藝性狀中圖分類號:$565.1文獻標識碼:A文章編號:1000-9841(2013)05-0718-04EffectsofCulturalPracticesonYieldandAgronomicTraitsofSoybeanCP.Zhoudou19GENGZhen,YANGQing—chun,SHUWen—tao
3、,LIJin—hua,ZHANGBao—liang,ZHANGDong—hui,LIUJian,WANGChao—liang(1.ZhoukouAcademyofAgriculturalSciences,Zhoukou466001,China;2.AgricuhuralResearchInstituteofDishenSeedCompany,Xihua466632,Cbina;3.DanchengAgriculturalTcchnologicalStation,Dancheng477150,China)Abstract:Fieldsplit—splitplotdesignwasadop
4、tedtoinvestigatetheeffectoffertilization,plantingdensityandchemicalregu—lationmethodonagronomictraitsandyieldofsoybeanCV.Zhoudou19.Plantheight,podsperplant,seedweightperplantin—creasedwiththeincreasingoffertilizingtimes.Withtheincreasingofplantingdensity,bottompodheightandplantheightin—creased,w
5、hilebranches,podsperplant,seedsperplant,seedweightperplantand100一seedweightdecreased.Chemicalregu—lationremarkablydecreasedplantheightandbottompodheightandhadnoinfluenceonmainstemnodes.Seedyieldincreasedwiththeincreasingoffertilizingtimes.a(chǎn)ndshowedincreaseandthendecreasetrendwiththeincrementofpl
6、antingdensity.Thehjghestyieldof3487.9kg·ha~wasobtainedunder600kg·ha~basicfertilizerandtwicefoliarfertilizersprayingattheplantingdensityof3.0×10plants·ha-。.withoutchemicalregulation.Keywords:Zhoudou19;Culturalpractices;Yield;Agronomictraits在一定的生態(tài)環(huán)境下,栽培措施決定大豆品種城縣農(nóng)技站進行。兩試點土壤均為壤土,前茬作物能否充分發(fā)揮其產(chǎn)量潛力。品種、
7、密度和肥力對大豆均為小麥。地神種業(yè)農(nóng)科所土壤pH8.48,堿解氮產(chǎn)量起決定作用¨j。合理的群體密度是確保高產(chǎn)穩(wěn)66.5mg·kg~,速效磷32.0nag·kg~,速效鉀118.1產(chǎn)的重要措施之一;合理使用氮肥能夠促進大豆mg·kg~,有機質(zhì)1.27%。鄲城縣農(nóng)技站土壤pH對土壤氮的吸收j,氮磷鉀肥配合施用能顯著提高8.1,堿解氮104.9nag·kg一,速效磷14.9nag·kg一,大豆的產(chǎn)量,而施肥量的高低、肥料的組合不同對大速效鉀181.0