韶关市西联镇不同土地利用方式对土壤肥力的影响

Impact on the soil fertility of different land use types in Xilian Town of Shaoguan City

采用野外调查和实验室分析相结合的方法,对韶关市西联镇草莓地、水稻花生轮作地、葡萄地、蔬菜地、水稻田等五种土地利用方式下的土壤肥力状况进行了研究.结果表明:不同土地利用方式对土壤肥力有较为明显的影响;土壤有机质含量由大到小依次为:水稻花生轮作地>蔬菜地>草莓地>水稻田>葡萄地;碱解氮表现为:水稻田>水稻花生轮作地>葡萄地>蔬菜地>草莓地;速效磷表现为:葡萄地>水稻花生轮作地>水稻田>蔬菜地>草莓地;速效钾表现为:葡萄地>草莓地>水稻田>水稻花生轮作地>蔬菜地.

The soil fertility of strawberry land and rice and peanut rotating, land, grape land , vegetable land , rice land in Xilian Town of Shaoguan City were studied by a combinating method of field investigation and lab assay. The results showed that different land use types had a notable effects on soil fertility. The gradation of the soil humus content were as followings： rice and peanut rotating land was the maximum, then were vegetable land, strawberry land and rice land, grape land was the minimum; the gradation of soil alkali hydroly sable N content were as followings： rice land was the maximum, then were rice and peanut rotating land, grape land, vegetable land and strawberry land; the gradation of soil avalible phosphorus content were as followings： grape land was the maximum, then were rice and peanut rotating land, rice land, vegetable land and strawberry land; the gradation of soil avalible result Potassium content were as followings： grape land was the maximum,then were strawberry land,rice land ,rice and peanut rotating land and vegetable land.