摘要
应用盆栽和田间试验对盐渍土棉花N、P、K肥效应进行了研究。结果表明 ,合理施用P、K肥能提高棉花体内过氧化物酶 (POD)活性 ,减少丙二醛 (MDA)含量 ,改善P、K营养 ,维持K+ 、Na+ 平衡 ,显著增强棉花耐盐性 ;合理增施N、P肥 ,可显著提高盐渍土棉花产量 ,有利于改善棉纤维品质 ,以N用量 1 95kg/hm2 、P2 O5用量 1 65kg/hm2(N1 95P1 6 5)
The effects of fertilization of N, P and K for cotton production in sa line-alkali soil through pot and field experiments were studied. The results sho wed that the POD activity was raised, MDA content was decreased, nutrient of P a nd K was improved, balance between K + and Na + was maintained and salt tolera nce of cotton was significantly strengthened by applying fertilizer of P and K. Adeq uate fertilization of N and P could significantly raise the lint yield and impro ve the quality of cotton fiber in saline-alkali soil. Among the treatments, the effects of N 195 P 165 were optimum.
出处
《莱阳农学院学报》
2003年第1期39-41,共3页
Journal of Laiyang Agricultural College
关键词
盐渍土
棉花
N
P
K
肥效
cotton
saline-alkali soil
balance between K + and N a +
effects of fertilization of N, P and K
