【摘要】 为探明万荣县苹果园土壤养分状况,对万荣县苹果园土壤养分含量及分布特征进行分析,以万荣县10个乡镇的50个盛果期果园为研究对象,测定0～40 cm土壤有机质,氮、磷、钾含量,阳离子交换量以及pH水平。结果表明,万荣县苹果园土壤有机质及碱解氮平均值含量处于较低水平,但大部分果园有机质含量处于低水平;有效磷及速效钾含量平均值处于高水平,处于较高水平以上的果园分别占果园总数的100%、82%;全氮含量平均值处于中等水平;土壤阳离子交换量平均值为27.04 mol/kg,其处于高水平的果园占果园总数的88%;土壤pH平均值为8.41,属于弱碱性土壤。万荣县苹果园在施肥中应注重有机肥的施用,降低土壤pH值,平衡使用化肥。更多还原

【Abstract】 To study the soil nutrient status of apple orchards in Wanrong county, 50 orchards in 10 townships of Wanrong county in full fruity period were taken as research objects, and the content of organic matter, nitrogen, phosphorus, potassium, cation exchange capacity and pH level of 0-40 cm soil were determined to analyse the soil nutrient content and distribution characteristics of apple orchard in Wanrong county. The results showed that the average contents of apple orchards soil organic matter and alkaline nitrogen in Wanrong county were low, and the contents of organic matter in most orchards were low. The average contents of available phosphorus and available potassium were at a high level, accounting for 100% and 82% of the total orchards, respectively. The average total nitrogen content was in the middle level. The average cation exchange capacity of soil was 27.04 mol/kg, and orchards with high level accounted for 88% of the total.The average pH value of soil was 8.41, which belonged to weak alkaline soil. The application of organic fertilizer should be emphasized in the apple orchard of Wanrong county, the pH value of soil should be reduced, and the chemical fertilizer should be balanced.更多还原