作物研究2017，Vol.31Issue(4)：349-354,6.DOI:10.16848/j.cnki.issn.1001-5280.2017.04.03
不同种植制度下机插双季稻产量、干物质生产及氮素利用比较
Comparison of Yield, Dry Matter Production and Nitrogen Utilization of Machine-transplanted Double Cropping Rice under Different Cropping Systems
摘要
Abstract
In order to explore the effect of crop rotation system on yield,dry matter production and nitrogen utilization of machine-transplanted double cropping rice,a field experiment with three cropping systems (rice-rice-fallow,rice-rice -oilseed rape and rice-rice-green manure) was conducted with conventional indica rice variety ‘ Zhongzao 39’ in both early and late seasons at three sites in 2016.The results showed that there were significant differences of the yields among different treatments and sites.The rank for yield among different sites was Hengyang ＞ Yueyang ＞ Changsha,and among different treatments,the rank was rice-rice-oilseed (RRO) ＞ rice-rice-green (RRG) ＞ rice-rice-fallow (RRF) in early season,RRG ＞ RRO ＞ RRF in late season.The annual yields of RRG and RRO were 0.85 t/hm2 and 0.99 t/ hm2 higher than those of RRF.Meanwhile,the spikelets per m2,total dry matter production and nitrogen assimilation of RRG and RRO were higher than those of RRF.关键词
种植制度/双季稻/产量/干物质生产/氮素利用Key words
cropping system/double cropping rice/yield/dry matter production/nitrogen utilization分类
农业科技引用本文复制引用
李志斌,高伟,周雪峰,陈佳娜,单双吕,黄敏,邹应斌..不同种植制度下机插双季稻产量、干物质生产及氮素利用比较[J].作物研究,2017,31(4):349-354,6.基金项目
南方粮油作物协同创新中心项目. （）
