贵州省黔西县植烟土壤主要养分状况评价

Evaluation on Main Nutrient Status of the Soil Planting Flue-cured Tobacco at Qianxi County in Guizhou

对黔西县4年332个植烟土壤样品分析结果表明,黔西县植烟土壤以黄壤为主,占总数的80%以上,紫色土和石灰土占有一定比例;70%以上土壤pH值在适宜植烟范围内;51.2%的土壤有机质含量在适宜植烟范围内,石灰土有机质含量普遍偏高;速效氮含量丰富,处于适宜范围的占77.11%;速效磷含量处于较低到丰富水平,有31%的土壤含量较低;速效钾含量较低,处于较低水平的占54.2%,中等水平的占39.2%。根据植烟土壤养分状况,提出了“控制有机肥、调整磷肥、增施钾肥”等施肥建议。

Based on the analyse data from 332 soil samples （4 years） of planting Flue-cured tobacco, the result indicated thatover 80% of the soil is yellow at Qianxi county, the others are purple soil and lime soil. The pH of over 70% soil is fit for growth offlue-cured tobacco. The organic matter contenl of 51.2% soil is fitting for planting flue-cured tobacco but over the suitable level in lime soil. The soil with suitable content of available N is about 77. 11%. The available P content covers the range from the lower to more abundant, while the 31% soil stands the lower. In the soil, the available K content is correspondingly lower, the lower area isabout 54.2%, the middle ones account for 39. 2%. According to the status, it is suggested that controlling organic manures,adjusting phosphorus, and increasing Potassium should be adopted.