不同土壤改良剂在皖南酸性红黄壤油菜上的效应

Study on the Effect of Different Soil Ameliorations on Rapeseed in Acid Soils in Southern Anhui

针对皖南红黄壤酸且瘠的特点 ,采用田间试验方法 ,以油菜为试验作物研究了沸石、石灰、白云石单施以及配合施用对红黄壤的改良效果。结果表明 :施用沸石、石灰和白云石均能够明显地促进油菜的生长发育 ,改善经济性状 ,显著地提高油菜产量。沸石、石灰、沸石 +石灰和白云石处理分别比施用氮磷钾肥的对照增产 19.5 %、5 3 .5 %～ 2 0 9.7%、72 .7%～ 2 2 9.3 %和2 0 4.9%。说明了沸石、石灰和白云石单施及配合施用对皖南酸性红黄壤有很好的改良效果。

Focusing on the acid condition and low fertility of the soils in southern Anhui, the field trials were conducted in order to study the effect of zeolite, lime and dolomite and their combined application in amelioration of acid red-yellow soil with the rapeseed as a test crop. The results indicated that the application of zeolite, lime, dolomite and their combinations could obviously promote rapeseed growth and increase yield significantly. The rapeseed yield at the treatment with zeolite, lime, zeolite + lime and dolomite increased by 19.5%, 53.5%～ 209.7% ,72.7%～229.3% and 204.9%, respectively compared with CK, which implied that the different soil additives had a good response to acid soil amelioration.