摘要
通过对玉米根系总根长、根表面积、平均根直径、根干重及玉米产量分析,以秸秆不还田为对照,研究两种灌水量3个秸秆还田量对玉米根系特性及产量的影响。结果表明,灌水和秸秆还田均利于玉米根系生长与产量形成,成熟期根系总根长、根表面积、根干重随着秸秆还田量的增加而增长;350 mm灌水量处理下秸秆还田3000 kg/hm^(2),450 mm灌水量处理下秸秆还田6000 kg/hm^(2)玉米产量优势明显。
Based on the analysis of total root length,root surface area,average root diameter,root dry weight and maize yield,the effects of three straw returning amounts on maize root characteristics and yield under two irrigation amounts were studied with straw not returning to the field as the control.The results showed that irrigation and straw returning were beneficial to the growth of maize root system and the formation of maize yield.The total root length,root surface area and root dry weight increased with the increase of straw returning amount in mature stage.The yield advantage of straw returning to the field under 350 mm irrigation was 3000 kg/hm^(2),and that under 450 mm irrigation was 6000 kg/hm^(2).
作者
向午燕
董智
王美文
蔡倩
冯晨
XIANG Wuyan;DONG Zhi;WANG Meiwen;Cai Qian;Feng Chen(Tillage and Cultivation Research Institute,Liaoning Academy of Agricultural Sciences,Shenyang 110161,China;Key Laboratory of Water-saving Agriculture in Northeast China,Shenyang 110100,China;Shenyang Agricultural University,Shenyang 110866,China;Liaoning Key Laboratory of Conservation Tillage in Dry Land,Shenyang 110161,China)
出处
《农业科技与装备》
2023年第1期4-5,8,共3页
Agricultural Science & Technology and Equipment
基金
辽宁省农业科学院院长基金项目(2022QN2320、2021QN2007)
国家重点研发计划课题(2022YFD1500601)
国家自然科学基金区域基金项目(U21A20217)
辽宁“百千万人才工程”资助项目(2021921035)
辽宁省“兴辽英才计划”(XLYC2007041、XLYC2002051)
中国科学院战略性先导科技专项(XDA28090202)项目。
关键词
玉米
灌水量
秸秆还田
根系特性
产量
影响
maixe
irrigation amount
straw returning
root characteristics
yield
effect
