云南辣木园土壤营养成分调查分析

Investigation and Analysis of Soil Nutrition Components in Moringa Garden in Yunnan Province

为了解云南辣木园土壤营养成分状况,采集云南省主要辣木种植区7个辣木种植园20 cm下耕层土壤,分析其理化指标和金属元素指标。结果表明:当pH值在4.59～6.84范围内时,土壤中的氮素和金属元素较丰富,有机质、全钾和有效磷处于缺乏到中等水平范围,全磷处于极缺乏水平;辣木园土壤金属元素的变异系数为镉>全量镁>铅>铜>镍>铬>锌。云南省辣木园土壤肥力水平总体较低,澜沧辣木园和保山蒲缥辣木园土壤重金属元素锌、铅、铬、镉和镍含量较丰富。

In order to understand the nutrient status of the soil in Yunnan moringa garden,seven main moringa garden soils under 20 cm were collected in Yunnan Province,and their physical and chemical indexes and metal elements were analyzed.The results showed that when the pH value ranged from 4.59 to 6.84,the soil was rich in nitrogen and metal elements,organic matter,total potassium and available phosphorus were in the middle level range,and total phosphorus was in the extremely deficient level.The coefficient of variation of metal elements in the soil of moringa garden was Cd>total Mg>lead>copper>nickel>chromium>zinc.The soil fertility level of moringa garden in Yunnan Province is generally low,and the contents of heavy metals such as zinc,lead,chromium,cadmium and nickel are relatively rich in Lancang and Baoshan Puxiao moringa garden.