杂交水稻2026，Vol.41Issue(2)：60-68,9.DOI:10.16267/j.cnki.1005-3956.20250421.079
不同机收方式对再生稻产量与品质的影响
Effects of Different Mechanical Harvesting Methods on Yield and Grain Quality of Ratoon Rice
摘要
Abstract
To investigate the effects of different mechanical harvesting methods on the yield and grain quality of ratoon rice,a field experiment was conducted from 2023 to 2024 with Longjingyou 1212(a high-node ratoon rice variety)and Yongyou 4949(a low-node ratoon rice variety).Two harvesting methods—the ordinary rice harvester and specialized harvester for ratoon rice—were applied.Key indicators,including the stubble damage rate in the main season,yields and yield components in the main and ratooning season,and grain quality in the ratooning season,were measured.The results showed that compared with the ordinary harvester,the specialized harvester used in the main season reduced the stubble damage rate from 44.3％to 22.7％.Under the specialized harvester treatment,the two-year average yields of Longjingyou 1212 and Yongyou 4949 in the ratooning season were 3.91 t/hm2 and 5.26 t/hm2,representing increases of 17.4％and 10.5％,respectively,compared with those under the ordinary harvester treatment.Further analysis revealed that compared with the ordinary harvester,the specialized harvester used in the main season increased the effective panicles,spikelets per unit area,and grain filling rate by 10.2％,7.0％,and 7.1％,respectively,while causing no significant difference in spikelets per panicle or 1 000-grain weight in the ratooning season.In terms of grain quality,compared with the ordinary harvester,the specialized harvester used in the main season improved the average head rice rate by 2.4％and reduced the average chalky grain rate and chalkiness degree by 21.0％and 15.2％,respectively,of two varieties in the ratooning season.Compared with the ordinary harvester,the specialized harvester used in the main season increased the head rice rates by 4.1％and 1.0％,decreased the chalky grain rate by 19.7％and 22.5％,and reduced the chalkiness degrees by 19.2％and 10.0％for Longjingyou 1212 and Yongyou 4949 in the ratooning season,respectively.Regarding the track rows,Yongyou 4949 showed an increase of 23.5％in annual average yield,an increase of 25.2％in head rice rate,and reductions of 12.0％and 22.2％in chalky grain rate and chalkiness degree,respectively,compared with Longjingyou 1212 in the ratooning season.In conclusion,using a specialized harvester in the main season significantly reduced the stubble damage rate,thereby enhancing the yield and grain quality in the ratooning season,with more pronounced benefits for high-node ratoon rice varieties.关键词
机收再生稻/品种/产量/稻米品质Key words
mechanized harvesting of ratoon rice/variety/yield/grain quality分类
农业科技引用本文复制引用
孙鑫,盖盼盼,陈宏景,熊姣军,何爱春,唐启源,杨德生..不同机收方式对再生稻产量与品质的影响[J].杂交水稻,2026,41(2):60-68,9.基金项目
"十四五"国家重点研发计划项目(2022YFD2301003) （2022YFD2301003）
