秸秆还田下冬种紫云英对机插双季稻产量及氮肥偏生产力的影响（英文）

论文摘要

2017—2018年在湖南省双季稻主产区宁乡市开展了秸秆还田下冬种紫云英对机插双季稻产量及氮肥偏生产力的影响研究。结果表明:早、晚稻冬种紫云英+秸秆还田处理的水稻植株茎、叶、穗和地上部分干物质积累量、有效穗、产量及氮肥偏生产力均显著高于秸秆还田处理;其中,早、晚稻有效穗数分别增加2.58%、3.18%（2017）和5.22%、6.32%（2018）,产量分别提高11.85%、10.07%（2017）和12.42%、10.92%（2018）,周年氮肥偏生产力分别提高10.90%（2017）和11.66%（2018）。综上所述,秸秆还田下冬种紫云英有利于提高机插双季稻的干物质积累,水稻产量和氮肥偏生产力。

论文目录

• 1. Introduction
• 2. Materials and Methods
•   2.1. Test site
•   2.2. Experimental design and field management
•   2.3. Sample collection and determination
•   2.4. Data analysis
• 3. Results and Analysis
•   3.1. Effects of winter planting milk vetch on growth stages of machine-transplanted doublecropping rice in straw returning to the field
•   3.2. Effects of winter planting milk vetch on dry matter accumulation of machine-transplanted doublecropping rice under straw returning to the field
•   3.3. Effects of winter planting milk vetch on economic characters and yield of machine-transplanted double-cropping rice under straw returning to the field
•   3.4. Effects of winter planting milk vetch on partial productivity of nitrogen fertilizer of machinetransplanted double-cropping rice under straw returning to the field
• 4. Discussions
•   4.1. Effects of winter planting milk vetch on yield of machine-transplanted double-cropping rice under straw returning to the field
•   4.2. Effects of winter planting milk vetch on partial productivity of nitrogen fertilizer of machinetransplanted double-cropping rice under straw returning to the field

文章来源

类型: 期刊论文

作者: 潘孝晨,李超,唐海明,肖小平,汤文光,郭立君,程凯凯,汪柯

关键词: 双季稻,紫云英,秸秆还田,产量,氮肥偏生产力

来源: Agricultural Science & Technology 2019年05期

年度: 2019

分类: 农业科技

专业: 农作物

单位: 湖南省土壤肥料研究所,湖南大学研究生院隆平分院

基金: Supported by National Key Research&Development Project (2018YFD0301004,2016YFD0300906),National Natural Science Foundation of China (31872851),Innovation Fund Project of Hunan Agricultral Science (2019LS03-01)~~

分类号: S511.42

DOI: 10.16175/j.cnki.1009-4229.2019.05.002

页码: 6-12

总页数: 7

文件大小: 627K

下载量: 19