摘要
研究了不同密度和施肥水平下的水稻氮素吸收和积累的规律 .结果表明 :不同施肥水平下的水稻各生育期氮素吸收比例移栽至幼穗形成期为 2 4 %～ 32 %,幼穗形成期至齐穗期为 57%～69%,齐穗期至成熟期为 5.7%～ 1 0 %.
The principles of assimilation and accumulation of nitrogen element based on different fertilization levels and planting densities was researched. The results showed that the assimilation proportion of nitrogen element based on different fertilization levels is 24%～32% from transplanting to ear initiation, 57%～69% from ear initiation to heading period, and 5.7% ～10% from heading period to mature period. The paddy rice absorbed the nitrogen element is higher in the lower planting density than in the higher planting density during the late time.
出处
《延边大学农学学报》
2000年第2期86-90,共5页
Agricultural Science Journal of Yanbian University
关键词
水稻
密度
施肥
氮素吸收
rice
planting density
fertilization
absorption of nitrogen
