土壤2012，Vol.44Issue(5)：762-768,7.
水稻季施肥对后季绿肥物质养分积累的影响
Effect of Fertilizer Application of Rice Season on Yield and Nutrition Accumulation of Green Manure
摘要
Abstract
Field experiment was carried out to study the applied amounts of N, P, K. fertilizers on the yields and nutrient accumulations of green manure in order to decide the optimal fertilizer amounts in the condition of rice-Chinese milk vetch rotation system. The results showed that the fresh grass yields with N, P, K fertilizer treatments increased by 27.9% - 40.9%, 12.6% - 37.2% and 21.4% - 46.2% than no N, P, K fertilizer treatments respectively. Among N fertilizer treatments, N accumulation of the treatments with N fertilizer increased by 48.8% - 62.3% than no N applied, C, N, K accumulation reached to the maximal values with 142.4 kg/hm2 N fertilizer applied, P accumulation reached to the maximal value with 71.2 kg/hm2 N fertilizer applied. Among P fertilizer treatments, P accumulation of the treatments with P fertilizer increased by 33.0% - 78.3% than no P treatments, C, N, P, K accumulations reached the maximal values with 49.1 kg/hm2 P fertilizer applied. K. accumulation of the treatments with K fertilizer increased by 22.2% - 44.8% than no K treatments, among K fertilizer treatments, C, N, P, K. accumulations reached the maximal values when K. fertilizer amount were 67.5 and 101.2 kg/hm2 in the rice season, and those two treatments had little difference. Under this experiment condition, the yield and C, N, P, K accumulations of green manure were 15 833 and 929.2, 44.6, 5.8 and 45.9 kg/hm2 respectively, while N, P, K fertilizer amounts were 142.4,49.1 and 67.5 (or 101.2) kg/hm2 in the rice season.关键词
绿肥/氮磷钾肥后效/产量/养分含量/养分积累量Key words
Green manure, Residual effect of N, P, K fertilizer, Yield, Nutrient content, Nnutrient accumulation分类
农业科技引用本文复制引用
潘福霞,鲁剑巍,李小坤,鲁君明,刘威,魏云霞,耿明建,曹卫东..水稻季施肥对后季绿肥物质养分积累的影响[J].土壤,2012,44(5):762-768,7.基金项目
公益性行业(农业)科研专项经费项目(201103005)资助. （农业）
