摘要
江西土壤有效态锰含量范围为（１～３００）×１０－６，平均为３０．４２×１０－６．据１７３６个标本数按其锰含量不同分为三级；低量级＜５×１０－６占８．５％，中量级（５～１５）×１０－６占３２．４％，高量级＞１５×１０－６占５９．１％．ｐＨ值＞６．５的石灰性土壤容易发生缺锰．在缺锰土壤上施用锰肥可使粮、棉、油料、烟草等增产和改善产品品质．
The content of soil Mn ranged from 1×10-6 to 300×10-6 averaged 30.42×10-6. in Jiangxi province. According to the content of soil Mn of 1736 samples. the soil would be graded into three classes as following: ①low Mn soil (<5×10-6) that occupied 8.5%. ②middle Mn soil (5×10-6～15×10-6) that occupied 32.4%. and ③high Mn soil (>15×10-6) that occupied 59.1%. Mn deficiency occuried easly in calcareous soil as PH>6.5.To add Mn to soil of Mn deficiency would increase yield and improve quality of grain crop. cotton. oil crop and tobacco.
出处
《广东微量元素科学》
CAS
1995年第8期22-23,共2页
Trace Elements Science
