江西信丰烟区紫色土养分状况分析

摘要

In order to investigate the nutrient status of purple soil in Xinfeng tobacco -planting area of Jiangxi province, the soil samples from Xinfeng county were collected and analyzed in 2009. The purple soil region in Xinfeng county was divided into the following four types: good tobacco - planting land, medium tobacco - planting land, potential tobacco - planting land and reserved tobacco -planting land. In the good tobacco - planting land of purple soil region, the soil pH - value was neutral; the organic matter content was slightly low; the contents of total nitrogen, phosphorus and potassium were medium; the contents of available nitrogen, phosphorus, potassium, boron and sulfur were higher; the exchangeable magnesium content was relatively lower; the contents of available trace elements (copper, zinc, iron and manganese) in the soil were lower.%为了探明江西信丰县紫色土养分状况,于2009年在信丰县采集土壤样品进行化验分析,同时把信丰县紫色土区域划分为上等烟地、中等烟地、潜力烟地与后备烟地,其中上等紫色土烟地养分规律为:pH呈中性；有机质含量偏低；土壤全氮、全磷、全钾含量居中,但氮、磷、钾有效态含量均较高；有效硼与有效硫含量较高,但交换性镁含量又相对较低；上等烟土壤中微量元素铜、锌、铁、锰有效态含量均较低.