摘要
以超级早、晚稻品种淦鑫203和淦鑫688为材料,研究了氮素基蘖肥:穗肥的施用比例对产量及氮肥利用率的影响。结果表明,在早稻180 kg/hm2和晚稻232.5 kg/hm2的施氮水平下,早稻在N(8:2)和N(7:3)、晚稻在N(6:4)时的生物产量、稻谷产量、总吸氮量、氮肥利用率最高。
Effects of the nitrogen basic-tiller and panicle fertilizer application ratio on the yield and nitrogen using efficiency were studied with super early and late rice Ganxin 203 and Ganxin 688 as materials.The results showed that in the early rice 180 kg/hm2 and late rice 232.5 kg/hm2nitrogen level,the N（8：2） and N（7：3）treatment had the highest biomass,grain yield,total N uptake and N using efficiency in early rice,while the N（6：4） treatment had the highest biomass,grain yield,total N uptake and N using efficiency in late rice.
出处
《中国土壤与肥料》
CAS
CSCD
北大核心
2011年第3期40-44,共5页
Soil and Fertilizer Sciences in China
基金
国家"十一五"科技支撑计划项目(2006BAD02A04)
江西省科技攻关项目(20051B020010)
关键词
超级早稻、超级晚稻
施氮时期
产量
氮素吸收利用
super early and late rice
nitrogen application period
yield
nitrogen uptake and utilization
