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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。
In order to ascertain the status of purple soil nutrients in Xinfeng County of Jiangxi Province, soil samples were collected and analyzed in Xinfeng County in 2009. At the same time, the purple soil area of Xinfeng County was divided into the upper-class tobacco land, medium-sized tobacco land, potential tobacco land and back- Among them, the nutrient regulation of purple soil was purple, the pH was neutral, the content of organic matter was low, the content of total nitrogen, total phosphorus and total potassium was middle, but the effective content of nitrogen, phosphorus and potassium were high; Sulfur content is higher, but the exchangeable magnesium content is relatively lower. The content of trace elements copper, zinc, iron and manganese in the superior tobacco soil is low.