摘要
为了指导水稻生产合理施肥,采用田间小区试验,研究了氮、磷、钾、硅锰、有机肥配合施用对水稻养分迁移、光合特性、籽粒产量及蛋白质含量的影响.结果表明:氮、磷、钾、硅锰、有机肥配合施用能促进水稻氮、磷、钾的吸收、转运、累积,提高籽粒氮、磷、钾含量及籽粒粗蛋白质含量;氮、磷、钾、硅锰、有机肥配合施用对水稻产量的形成有明显的促进作用,主要是通过提高功能叶的净光合速率、有效穗、每穗实粒数来实现.
Effects of combined fertilization of nitrogenous fertilizer(N),phosphate fertilizer(P),potash fertilizer(K),silicon fertilizer(Si),manganese fertilizer(Mn)and organic fertilizer on migration of nutrients,photosynthesis characteristic,yield and grain protein contents in brown rice were investigated in field-plot experiment.The results show that by means of raising net photosynthesis ratio of functional leaves,effective ears and seeds per ear.Proper application of N-P-K-Si-Mn-organic combined fertilizer can Ⅰ. promote absorption,transportation and accumulation of nitrogen,phosphate and potash,Ⅱ.increase contents of nitrogen,phosphate,potash and contents of protein in grain,Ⅲ.significantly increase rice yield.
出处
《湖南农业大学学报（自然科学版）》
CAS
CSCD
北大核心
2004年第5期405-410,共6页
Journal of Hunan Agricultural University(Natural Sciences)
基金
国家"十五"攻关项目子专题(2001BA207A)
关键词
水稻
肥料
光合特性
产量
蛋白质含量
rice grains
fertilizer
photosynthesis characteristic
yield
protein contents
