江西农业学报2023，Vol.35Issue(10)：21-25,5.DOI:10.19386/j.cnki.jxnyxb.2023.10.004
收割时间和留桩高度对泰优390再生稻产量的影响
Effects of Harvest Time and Stubble Height on Yield of Ratoon Rice"Taiyou 390"
摘要
Abstract
In order to explore the effects of different harvest time and stubble height on growth and yield of ratoon rice,hybrid rice"Taiyou 390"was taken as experimental materials in 2019,and the effects of different harvest time and stubble height on the growth and development dynamics,yield and yield components of ratoon rice were studied.The results showed that as the stubble height increased at the range of 20～40 cm,the growth period of ratoon rice shortened.The total yield of the first season rice with 10 maturity was the highest,and the yield per unit area of first season rice with 10 maturity was significantly higher than that of first season rice with 8 maturity and 9 maturity.The ratoon rice could obtain higher yield when the first season rice harvested at 9 maturity.Ratoon rice with stubble height of 40 cm had better yield.Comprehensive analysis of the yield and benefits of first season rice and ratoon rice,the first season rice should be harvested at 10 maturity and 40 cm stubble height.The results provided technical basis for planting ratoon rice"Taiyou 390"in the middle and lower reaches of the Yangtze River.关键词
再生稻/泰优390/产量/收割时间/留桩高度Key words
Ratoon rice/Taiyou 390/Yield/Harvest time/Stubble height分类
农业科技引用本文复制引用
陶瑶,汤卫强,管建丰..收割时间和留桩高度对泰优390再生稻产量的影响[J].江西农业学报,2023,35(10):21-25,5.基金项目
江西省气象局科研重点项目"江西省再生稻种植气候适宜性试验及示范推广研究" （）
上饶市气象局科研项目"基于多元分析的早稻产量预报模型研究". （）
