江西农业大学学报2016，Vol.38Issue(3)：448-455,8.
施氮量与栽插苗数对杂交早稻"鄱优364"产量的影响
Effects of Nitrogen Application Amount and Planting Seedling Number on Yield of Hybrid Early Rice Poyou364
摘要
Abstract
With the planting density of 16.67 cm × 20 cm the effects of nitrogen fertilizer levels (0,120, 150,180and 210 kg/ha 5) and seedling numbers(2,3,4 per hole)on the yield were studied with new hybrid early rice of Poyou364.The results showed that the grain yield,effective panicle,grain number per panicle,seed setting rate and 1000-grain weigh were influenced significantly by nitrogen application. Seed-setting rate and 1000-grain weight decreased at 210 kg/ha of nitrogen level,but the panicle number and the grain yield did not increased significantly.With the increase of seedling number,the grain yield and effective panicle number increased,the grain number per panicle decreased,and the seed setting rate and 1000-grain weight showed a decreasing trend.The interaction of nitrogen application amount and seedling number had significant influence on the grain yield,grain number per panicle,seed setting rate and 1000-grain weigh. With the increase of the amount of nitrogen fertilizer and the number of planted seedlings, yield increased, but the grain number per panicle ,seed setting rate and 1000 grain weight decreased with the increase of the amount of nitrogen fertilizer and the number of planted seedlings had no significant effect on effective panicle.The higher yield of Poyou364 would be obtained with nitrogen application of 180 kg/ha,seedling number of 4 per hole.关键词
施氮量/栽插苗数/杂交早稻/鄱优364/产量Key words
nitrogen application amount/seedling numbers/hybrid early rice/Poyou364/yield分类
农业科技引用本文复制引用
段里成,凌长有,曾勇军,石庆华,潘晓华,蔡海生,吴自明,方加海..施氮量与栽插苗数对杂交早稻"鄱优364"产量的影响[J].江西农业大学学报,2016,38(3):448-455,8.基金项目
江西省高校科技落地计划( KJLD14025)和江西省科技支撑计划( 20143ACF60011) Project supported by Science and Technology Planning Project of University in Jiangxi Province(KJLD14025) and Science and Technology Support Program of Jiangxi Province (20143ACF60011) （ KJLD14025）
