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覆膜和灌水管理对杂交谷子生物性状和产量的影响

发表时间:2017-02-16  浏览量:909  下载量:235
全部作者: 高 亮,杜 雄
作者单位: 河北农业大学农学院
摘 要: 试验以“张杂谷5号”为试验材料,采用大田试验方法,研究不同降水年型地膜覆盖与灌水管理下的杂交谷子生物性状和产量特性。结果表明,丰水年型地膜覆盖显著提高杂交谷子籽粒产量的10.8%~18.6%,干旱年型地膜覆盖下灌水处理籽粒产量较露地显著提高10.2%~15.4%,拔节期灌水显著提高杂交谷子籽粒产量,干旱年型地膜覆盖下抽穗期灌水显著提高籽粒产量。杂交谷子籽粒产量与株高、茎粗和重心高度呈显著正相关,与植株抗倒指数呈显著负相关。地膜覆盖和灌水量的增加造成抗倒指数的下降,因此丰水年型地膜覆盖下保证拔节期灌水,干旱年型地膜覆盖下保证拔节期和抽穗期灌水是杂交谷子获得高产稳产的农艺技术。
关 键 词: 作物栽培学;杂交谷子;地膜覆盖;灌水;产量;生物性状
Title: Effects of plastic-film mulching and irrigation management on biological characters and yield of hybrid millet
Author: GAO Liang, DU Xiong
Organization: College of Agronomy, Hebei Agricultural University
Abstract: The filed experiments were conducted to study the effect of plastic-film mulching and irrigation management on biological characters and yield of hybrid millet by using “Zhangzagu 5” as material. The results showed that plastic-film mulching in wet years could significantly improve the grain yield by 10.8%-18.6%, while plastic-film mulching with irrigation in dry years could significantly improve the grain yield by 10.2%-15.4%. Irrigation at jointing stage could significantly improve the grain yield, and irrigation at heading stage with plastic-film mulching could significantly improve the grain yield. Grain yield has significant positive correlation with plant height, stem diameter and the height of the center of gravity, but has significant negative correlation with lodging resistance. Plastic-film mulching and irrigation caused the loss of lodging index. Irrigation at jointing stage with plastic-film mulching in wet years and irrigation at jointing and heading stages with plastic-film mulching in dry years are the agronomic technology of high and stable yield used for hybrid millet.
Key words: crop cultivation; hybrid millet; plastic-film mulching; irrigation; yield; biological characters
发表期数: 2017年2月第3期
引用格式: 高 亮,杜 雄. 覆膜和灌水管理对杂交谷子生物性状和产量的影响[J]. 中国科技论文在线精品论文,2017,10(3):323-331.
 
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