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以加工番茄为试材,采用穴盘育苗栽培,利用光照栽培的方法,底肥施用8种不同腐植酸复混肥配方,测定了苗期加工番茄的生物量、氮、磷、钾的含量及土壤有机质和速效养分含量,并进行根扫描。结果表明:配方为N-P-K:7-18-13,腐植酸8%,有机质2%的腐植酸复混肥(硫酸钾)和配方为N-P-K:9-23-7,腐植酸8%,有机质2%的腐植酸复混肥(氯化钾)的配方促进了苗期加工番茄植株和根氮、磷、钾的积累;显著增加了根长和根比表面积;提高了土壤中有机质和速效氮、速效磷、速效钾的含量,减少了肥料用量间的差异。
The processing tomato was taken as the test material, the cultivation of plug seedling was adopted, and the method of light cultivation was used. Eight different humic acid compound fertilizers were applied at the base fertilizer to determine the biomass, nitrogen, phosphorus and potassium content and soil Organic matter and available nutrient content, and root scan. The results showed that the formula was NPK: 7-18-13, humic acid 8%, organic matter 2% humic acid compound fertilizer (potassium sulfate) and the formula is NPK: 9-23-7, humic acid 8%, organic matter 2% (Potassium chloride) promoted the accumulation of nitrogen, phosphorus and potassium in tomato plants and roots, increased the root length and root specific surface area significantly, increased the contents of soil organic matter and available nitrogen, Phosphorus, available potassium content, reducing the difference between the amount of fertilizer.