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襄城县地处中原腹地,是典型的农业生产大县,更是全国的烟叶种植大县。钾是植物的三要素之一,它对植物的生长、发育及代谢影响很大,能促进光合作用和植物对氮的吸收,增强作物的抗逆性,提高作物品质,特别是改善烟叶的品质和提高烟叶的产量尤为显著。一、不同乡镇速效钾含量分布状况根据2008—2010年3 764个土样的化验结果得知,全县耕层土壤速效钾含量平均117mg/kg,变化幅度在91~148mg/kg之间,标准差12.89mg/kg,变异系数0.11。平均含量最高的是麦岭镇,平均为131 mg/kg;最低的是王洛镇,平均为108mg/kg。襄城县速效钾含量共分5级,其中1级地面积
Xiangcheng County is located in the hinterland of the Central Plains, is a typical agricultural production county, but also the country’s tobacco growing county. Potassium is one of the three elements of plants, it has a great impact on plant growth, development and metabolism, can promote photosynthesis and plant nitrogen absorption, enhance crop resistance, improve crop quality, especially to improve the quality of tobacco And increase the production of tobacco is particularly significant. First, the distribution of available potassium in different townships According to the laboratory test results of 3 764 soil samples from 2008 to 2010, the available potassium content in the topsoil of the entire county average 117 mg / kg, ranging from 91 to 148 mg / kg. The standard The difference was 12.89 mg / kg, the coefficient of variation was 0.11. The highest average content is the town of Maling, with an average of 131 mg / kg; the lowest is Wangluo Town, with an average of 108 mg / kg. Xiangcheng available potassium content is divided into 5 levels, of which 1 area