扬州大学学报（农业与生命科学版）2025，Vol.46Issue(2)：48-57,10.DOI:10.16872/j.cnki.1671-4652.2025.02.007
氮肥施用量和栽插密度对迟熟中粳品种稻米品质的影响
The effect of nitrogen application and planting density on quality of the late-maturity medium Japonica rice varieties
摘要
Abstract
In this study,four Japonica varieties including Wumijing(C1),Wuyujing 3R(C2),Wuyunjing 24(C3),and Huaidao 5(C4)were selected to explore the effects of the grain quality under four nitrogen rates including 360(A1),240(A2),120(A3)and 0(A4)kg·hm-2 as well as three planting density including 375 000(B1),300 000(B2)and 225 000(B3)plants·hm-2 in two years.The results showed that the milled rice rate of A3 was significantly higher than that of A1 and A4,which indicated that appropriate nitrogen application was beneficial to the improvement of milled rice rate.In general,with the increase of nitrogen application,the protein content of all varieties of milled rice was significant-ly increased,while the chalkiness grain percentage and chalkiness degree decreased significantly with the increase of nitro-gen application.Compared with dense planting,sparse planting was beneficial to improve processing quality and appear-ance quality,and the effect of planting density on the protein content of milled rice was relatively small.Overall,A3B3 combined cultivation conditions can significantly improve the quality of rice in this experiment.Our results can provide a reference for scientific nitrogen fertilizer application and reasonable planting density for high efficiency and high quality cultivation of late maturity japonica varieties.关键词
粳稻/氮肥施用量/栽插密度/稻米品质Key words
Japonica rice/nitrogen application amount/planting density/grain quality分类
农业科技引用本文复制引用
王飞腾,樊丽盈,李梦,孙铭琰,许作鹏,张宏根,刘巧泉,汤述翥..氮肥施用量和栽插密度对迟熟中粳品种稻米品质的影响[J].扬州大学学报（农业与生命科学版）,2025,46(2):48-57,10.基金项目
江苏省农业科技自主创新资金项目[CX(23)3093] （23）
江苏省重点研发计划项目(BE2021301) （BE2021301）
江苏省种业振兴揭榜挂帅项目(BGS[2021]040-6) （BGS[2021]040-6）
江苏省高等学校自然科学研究重大项目(22KJA210004) （22KJA210004）
江苏省作物基因组学和分子育种重点实验室开放课题(PL202303) （PL202303）
