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通过对全县6个土类,19 496.93 hm2耕地土壤pH值、有机质、碱解氮、有效磷、速效钾、有效硫、交换性镁、有效硼、有效锰、有效锌进行养分分析。结果表明,49.81%的土壤偏酸,37.84%的土壤有机质偏低,24.69%的土壤碱解氮缺乏,47.41%的土壤缺磷,37.25%的土壤缺钾,53.89%的土壤缺硫,25.95%的土壤缺镁,97.25%的土壤缺硼,41.77%的土壤缺锰,69.28%的土壤缺锌;根据丰缺情况,提出烤烟、甘蔗、玉米、水稻等主要栽培农作物的施肥建议,指导农户科学施肥,提高肥料利用率,确保农业增效、农民增收。
Through the analysis of soil pH, organic matter, available nitrogen, available phosphorus, available potassium, available sulfur, exchangeable magnesium, available boron, available manganese and available zinc in 6 soil types and 19 496.93 hm2 farmland in the county, The results showed that 49.81% of the soil had partial acidity, 37.84% of the soil organic matter was low, 24.69% of the soil was deficient in alkaline hydrolysis nitrogen, 47.41% of the soil was deficient in phosphorus, 37.25% of the soil was deficient in potassium, 53.89% Lack of boron in 97.25% of the soil, lack of manganese in 41.77% of the soil and zinc deficiency in 69.28% of the soil. Based on the abundance and deficiency, the authors put forward fertilization suggestions on the main cultivated crops such as flue-cured tobacco, sugar cane, corn and rice, Fertilization, improve fertilizer utilization, ensure agricultural efficiency, farmers income.