论文部分内容阅读
[目的]为了给福泉市烟区进行精准配方、平衡施肥提供参考。[方法]利用GPS定位,在福泉市植烟土壤上相对均匀地采集了180份土样,并对土样的主要养分含量和p H值进行了测定。[结果]福泉植烟土壤有机质、有效氮、有效磷和速效钾含量的平均值分别为26.8 g/kg、134.1 mg/kg、35.9 mg/kg和222.1mg/kg,变异系数分别为25.8%、21.4%、72.1%和55.3%;土壤p H平均值为6.2,变异系数为15.3%。[结论]福泉市植烟土壤有机质、有效氮、有效磷和速效钾含量在总体上均丰富,但各乡镇之间差异较大,应根据养分丰缺情况和p H值,精准确定烤烟施肥种类和用量。
[Objective] In order to provide the accurate formula and the balanced fertilization in Fuquan tobacco area. [Method] With the use of GPS positioning, 180 soil samples were collected relatively uniformly in the tobacco soil planted in Fuquan city. The main nutrient contents and p H value of soil samples were determined. [Result] The average values of soil organic matter, available nitrogen, available phosphorus and available potassium in Fuquan tobacco planting soil were 26.8 g / kg, 134.1 mg / kg, 35.9 mg / kg and 222.1 mg / kg respectively, with the variation coefficients of 25.8% 21.4%, 72.1% and 55.3% respectively. The average value of soil p H was 6.2 and the coefficient of variation was 15.3%. [Conclusion] The contents of organic matter, available nitrogen, available phosphorus and available potassium in tobacco-planting soil were generally rich in Fuquan City. However, the differences among all towns and townships were quite large. According to nutrient abundance and deficiency and p H value, And dosage.