酸性土壤施石灰对烟稻轮作后效的影响  

Residual effect of lime application on farming system of tobacco-rice in acid soil

作　　者：唐莉娜[1] 熊德忠[2] 张永成[3] 谢廷鑫[3] 高伟民[3] 李春英[3] 

机构地区：[1]福建农林大学作物科学学院,福建福州350002 [2]福建农林大学资源与环境学院,福建福州350002 [3]福建省烟草公司,福建福州350003

出　　处：《福建农林大学学报（自然科学版）》2002年第4期517-520,共4页Journal of Fujian Agriculture and Forestry University:Natural Science Edition

基　　金：福建省教育厅科技计划项目(JA00183);福建省烟草公司资助项目.

摘　　要：在烟稻轮作中,酸性土壤(pH5.0)每千克土施石灰0.2-0.4g能明显促进当季烤烟生长,但施用过多对烤烟生长不利.从石灰施用后效来看,每千克土施石灰>0.4g,明显抑制第2季水稻生长.每千克土施石灰0.2g,有利于当季和下一季水稻生长,对第3季烤烟生长无明显后效.从当季烤烟生长及后效来看,每千克土施石灰0.2-0.4g为宜,且隔季施用效果较好.For the acid soil (pH 5.0) of tobaccorice farming system, the application of lime at the rate of 0.2-0.4 g·kg-1 significantly improved the growth of tabacco plants, while it was inhibited at higher rates. As to their residual effects, the second season rice yield decreased significantly in the treaments in which lime was applied at more than 0.4 g·kg-1. In the treament of applicating 0.2 g·kg-1 of lime, the first season tobacco and the second season rice were both improved, but the third season tobacco was not affected. So it was suggested that lime application to acid soil at 0.2-0.4 g·kg-1 every other season.

关 键 词：烟稻轮作 酸性土壤 石灰 后效 肥效 土壤改良 

分 类 号：S572[农业科学—烟草工业] S156.6[农业科学—作物学]