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秸秆连续还田与化肥配施对玉米籽粒灌浆特性 及产量与品质的影响
王艳红,李金才,魏凤珍,王成雨,张一,孙建强,郏云生
0
(安徽农业大学农学院,合肥 230036;蒙城县农业科学研究所,蒙城 233500)
摘要:
2008~2011年度在农业部华东地区作物栽培科学观测实验站进行了秸秆全量粉碎覆盖还田与化肥配施对夏玉米灌浆特性及产量与品质影响的研究。试验结果表明,小麦玉米秸秆两季还田与化肥配施可明显提高渐增期平均灌浆速率(V1)、延长快增期(T2)及缓增期(T3)的持续时间,显著提高玉米籽粒容重和玉米籽粒油份含量,同时还可提高粒重和蛋白质及淀粉的含量,从而为籽粒千粒重和产量的提高奠定基础。
关键词:  玉米  秸秆还田  灌浆特性  籽粒容重  籽粒品质
DOI:
基金项目:国家自然科学基金(31071356), 农业部行业专项(201203100, 201203079)和农业部华东地区作物栽培科学观测实验站(25208120)共同资助。
Effects of continuous straw return with fertilizer on maize grain filling characteristics, yield and grain quality
WANG Yan-hong,LI Jin-cai,WEI Feng-zhen,WANG Cheng-yu,ZHANG Yi,SUN Jian-qiang,JIA Yun-sheng
(School of Agronomy, Anhui Agricultural University, Hefei 230036;Institute of Agriculture Sciences, Mengcheng 233500)
Abstract:
In order to investigate the effects of continuous straw return with fertilizer on maize yield and grain quality, an experiment of summer corn cultivar “Zhengdan 958” was carried out during 2008 to 2011 at Mengcheng scientific observation station of crop cultivation in east China, Ministry of Agriculture. Four treatments were designed for no wheat-maize straw return (W0C0F1), maize straw return but not wheat straw return (W0C1F1), wheat straw return but not maize straw return (W1C0F1) and wheat-maize straw return in two seasons (W1C1F1) at randomized complete block designs with N application rate of 300 kg·hm-2. The results show that wheat-maize straw return in two seasons with fertilizer significantly improve the rate of grain filling during gradual increase stage (V1), extend the duration of rapid and slow increasing stage (T2, T3) which can significantly improve grain unit weight and oil content, and also improve the grain weight, protein and starch contents which result in higher grain yield and 1000-grain weight.
Key words:  maize  straw return  characteristics of grain filling  grain unit weight  grain quality

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