摘要
针对我国南方红壤旱地酸瘠的特征,采用田间试验,以大豆为试验作物,对红壤旱地土壤改良剂的种类筛选和施用量设置进行了研究。结果表明,腐殖酸钾、熟石灰、"地保一号"调理剂均能一定程度的改善土壤理化性状和提高大豆产量,其中以腐殖酸钾和熟石灰配施效果最佳,且二者最佳施用量均为50～75 kg/667m2。
In order to find out the best soil amendment for red soil dry-land and the optimum applying amount,the field trials were conducted by using soybean as experimental material and according to the acid condition and low fertility of the red soils day-land in Southern China.The results showed that the humic acid potassium,the slaked lime and the ＂Dibao No 1＂ were able to improve soil physicochemical properties and increase soybean yield,in which the combined application of humic acid potassium with slaked lime gained the best effect,and the feasible applied amounts of humic acid potassium and slaked lime all should be 750~1 125 kg/hm2.
出处
《湖南农业科学》
2010年第6期45-47,50,共4页
Hunan Agricultural Sciences
基金
"十一五"国家科技支撑计划项目(2006BAD25B08)
关键词
土壤改良剂
红壤旱地
土壤理化性状
大豆
soil amendment
red soil dry-land
soil physicochemical properties
soybean
