配施对高淀粉玉米产量和品质影响.doc

蕿羆肂氮磷钾肥配施对高淀粉玉米产量和品质的影响螅膁膈马瑞霞1,刘文成1,王振华2,张新2,张前进2肈蚆肇(,河南安阳,455000;,郑州450002)袇薃袄摘要:采用随机区组试验研究氮磷钾肥配施对高淀粉玉米郑单18产量和品质的影响。结果表明,施用N肥显著提高产量,N、P肥配施高于单施N肥,N、P、K肥配施高于N、P配施,一定范围内,N、P、K配施量越大,产量越高,但施肥量和产量不是等比例增加,符合报酬递减规律。不同处理的产量差异主要决定于穗粒数。施用N肥,淀粉、脂肪和蛋白质含量均提高。N、P肥配施较单施N肥前期淀粉含量高,后期含量低;脂肪和蛋白质含量在整个灌浆期间均低。N、P、K肥较N、P肥配施,脂肪含量高,淀粉和蛋白质含量低。低肥使淀粉、脂肪和蛋白质在灌浆前期含量高,后期含量低。高肥使淀粉含量高,蛋白质含量和脂肪含量前期高,后期低。从经济效益和施肥的供需平衡原则考虑,目前最佳施肥处理为N225kg/hm2,。蚂蒇腿关键词:玉米,肥料,产量,淀粉蚄蚂袀中图分类号:S513;S318文献标识码:A膁膇袆EffectofDifferentNPKFertilizersCooperatingApplicationonYieldandQualityofhighstarchmaize蚅肄羄MaRuixia1,LiuWencheng1,WangZhenhua2,Zhangxin2,ZhangQianjin2薁羈薀(,AnyangInstituteofTechnology,Anyang455000;,HenanAcademyofAgriculturalSciences,Zhengzhou450002)螇膂莈Abstract:Effectofnitrogen,-,paredwiththenon-fertilizertreatment,binedapplicationofNandPfertilizerswashigherthanthatofmaizewithsingleNtreatment,,PandK,buttherewasnotthedirectproportionbetweenyieldandfertilizationamountinthegrowthperiod,,,Atthesametime,Thecontentsoflipidandstarchwerenotincreasedalongwiththeincreaseofphosphorusfertilizer,binedapplicationofN,binedapplicationofNandPfertilizers,umulationoflipidwasincreased,,starchandlipidwerehigherintheearlystagethanthatinthelatestageofpostulationwiththelow-,Pandkfertil