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中国农学通报 ›› 2019, Vol. 35 ›› Issue (27): 34-40.doi: 10.11924/j.issn.1000-6850.casb18040084

所属专题: 玉米

• 农学 农业基础科学 • 上一篇    下一篇

四川盆地夏玉米适宜播期研究

陈尚洪1, 陈红琳1, 郑盛华1, 吴铭1, 梁圣1, 沈学善1, 梅旭荣2, 刘定辉1   

  1. 1.四川省农业科学院土壤肥料研究所/农业部西南山地农业环境重点实验室;2.中国农业科学院农业环境与可持续发展研究所
  • 收稿日期:2018-04-18 修回日期:2018-06-24 接受日期:2018-07-16 出版日期:2019-09-24 发布日期:2019-09-24
  • 通讯作者: 刘定辉
  • 基金资助:
    公益性行业(农业)科研专项“西南丘陵旱地粮油作物节水节肥节药综合技术集成与示范”(20150312702);国家重点研发计划“丘陵旱地带 状套作玉米丰产增效技术研究与模式构建”(2017YFD0301708);四川省财政创新能力提升工程项目“丘区旱地耕地质量提升关键技术研究与应用” (2016GYSH-026);四川玉米创新团队项目“玉米土壤培育与水肥高效关键技术”(2014SCYMCXTD-7)。

Suitable Sowing Time for Summer Maize in Sichuan Basin

  • Received:2018-04-18 Revised:2018-06-24 Accepted:2018-07-16 Online:2019-09-24 Published:2019-09-24

摘要: 为了探讨四川盆地油菜-夏玉米两熟条件下夏玉米适宜播期,以‘仲玉3号’、‘蠡玉16’和‘成单30’为供试材料,设置4个夏播播期,对玉米的倒伏状况、干物质积累、产量和籽粒品质变化进行了系统研究。结果表明:品种、播期、品种与播期交互作用显著影响玉米根倒率、总倒折率、收获指数、产量和有效穗数,且播期对实际倒伏、收获指数、产量和有效穗数影响大于品种。品种显著影响玉米籽粒的淀粉含量,品种和播期均显著影响籽粒的蛋白质含量,品种对淀粉和蛋白质的影响大于播期。四川盆地油菜-夏玉米模式中,油菜收获后夏玉米贴茬早播,有利于提高玉米抗倒伏能力、收获指数和籽粒产量;兼顾高产和优质目标,5月1日至5月15日播种宜选用‘成单30’,晚播品种宜选用‘仲玉3号’或者‘蠡玉16’。

关键词: 室内空气污染, 室内空气污染, 甲醛, 苯, 甲苯, 二甲苯, 净化, 机理

Abstract: In order to clarify the suitable sowing date of summer maize in the rape-summer maize cropping system of Sichuan Basin, three maize varieties(Zhongyu 3, Liyu 16 and Chengdan 30)were sowed at four dates with 15-day intervals from May 1st to June 14th in 2016, and the effects of different sowing dates on the actual lodging, dry matter accumulation, grain yield and grain quality were investigated. The results showed that maize varieties, sowing dates and their interactions had significant effects on root lodging percentage, total lodging percentage, harvest index, grain yield and ear number, and the effect of sowing dates was greater than that of maize varieties. The starch content of maize grain was significantly affected by varieties, but protein content was significantly affected by both of varieties and sowing dates, and the effect of maize varieties on content of starch and protein was bigger than that of sowing dates. Timely early sowing of summer maize had good effects on lodging-resistant capability, harvest index and grain yield. Consideration of high yield and good grain quality of summer maize, and the variety of ‘Chengdan 30’was appropriate for sowing from May 1st to May 15th, while the preferred variety should be ‘Zhongyu 3’ or ‘Liyu 16’ for delayed sowing maize after May 15th in hilly regions of Sichuan.