湖南祁东烟区不同植烟土壤类型肥力状况比较

Comparison of the Fertility Status of Diferent Soil Types in Qidong Tobacco-growing Areas of Hunan Province

通过对祁东县三种主要植烟土壤类型的肥力状况比较,发现不同类型土壤养分含量有一定差异.紫色土的各种养分指标都处于适宜范围;水稻土的pH和有机质含量偏高,红壤的pH、速效钾、有效锌、有效氯含量偏低.因此在该地区紫色土壤比较适宜种烟,其次是水稻土,对红壤应进行相应土壤改良,提高肥力,为生产优质烟叶提供良好的基础.

Three main types of soil in Qidong district have been compared in this paper and the fertility conditions of all those soil have been discovered. The result of the experiment show that, the purple soil is the most suitable type in all those soil, the PH value and the organic content of paddy soil are higher than the normal one, the PH value, the fast-acting potassium, the effective zinc, the effective ehlorinity of red soil are lower than the normal type. Therefore, purple soil is most suitable soil for the tobacco plants in this district, next is the paddy soil. For the production of good tobacco, we should emphasize on the corresponding soil amelioration and supplying the right amount nutrient to the red soil.