摘要
贵州土壤微量元素钼、硼、锌含量分布受成土母质、土壤类型及成土条件等因素的影响。土壤全Zn含量高于全国及世界平均值。全B含量略高于全国土壤平均含量,高于世界土壤平均含量。全Mo含量与全国土壤平均值一致,略低于世界土壤平均值;有效态Mo、B含量绝大多数低于缺素土壤临界值,预示着全省土壤普遍缺B和大面积缺Mo。在水稻土、紫色土、红壤、黄棕壤中有效Mo与全Mo呈显著正相关;经在本省缺素土壤中针对性补充微肥试验,取得了明显增产效果。
A Soil Mo,B,Zn content and distribution was affected by the parent
material and the type of soil.Soil Zn content in Guizhou is higher than the average soil value of the country and the world as well.Soil B content is slightly higher than the average soil value of the country and the world.But soil Mo content is almost the same as the average value in the country and a slightly lower than that of the world. Most of Mo,B use efficiency is lower than the critical level of the soil that lacks the elements. This shows that Guizhou's soil is commonly deficient in element B and element Mo in larger areas. In paddy soil, purple soil and yellow-cinnamon soil, the content of ohe available Mo is remarkably related with the tolal Mo content. Significant inereace of grain yield was obtained when trace element fertilizer was applied to these soils being short of trace elements.
出处
《贵州农业科学》
CAS
1992年第5期37-41,共5页
Guizhou Agricultural Sciences
关键词
土壤
微量元素
钼
硼
锌
土壤成分
Mo
B
Zn
trace fertilizer
content
distribution Guizhou
