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通过取样分析对中山市菜园土的土壤肥力状况进行调查与评价。结果表明:中山市菜地耕层土壤物理性粘粒含量平均值为63.16%,多数土壤偏粘性;土壤pH值平均为5.74,61.7%为微酸性至中性土壤;有机质含量平均为26.56 g/kg,处在中等水平以上的占89.1%;全氮含量平均为1.65 g/kg,碱解氮含量平均为121.71 g/kg,全氮和碱解氮处在中等和丰富水平;全磷含量平均为1.09 g/kg,全钾含量平均为11.27 mg/kg,全磷和全钾含量缺乏或很缺乏;有效磷含量平均为64.57 g/kg,速效钾含量平均为155.96 g/kg,有效磷和速效钾处于丰富和很丰富水平。
Through sampling analysis, the soil fertility status of vegetable garden soil in Zhongshan was investigated and evaluated. The results showed that the average content of soil clay was 63.16%, the majority of soil was sticky. The average soil pH value was 5.74 and 61.7%, respectively. The average content of organic matter was 26.56 g / kg, accounting for 89.1% above the middle level; the average total nitrogen content was 1.65 g / kg, the content of alkaline hydrolysis nitrogen was 121.71 g / kg, the total nitrogen and available nitrogen were at medium and abundant levels; 1.09 g / kg, the average total potassium content was 11.27 mg / kg, the total phosphorus and total potassium content were lacking or lacking; the average effective phosphorus content was 64.57 g / kg, the available potassium content was 155.96 g / kg, Available potassium is rich and very rich.