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用盆栽的方法研究了提纯腐植酸、腐植酸原料草炭和风化煤对土壤脲酶活性的抑制效果及其对盆栽小麦苗生长发育和养分吸收状况的影响及对土壤残留氮素的影响。
Pot experiments were carried out to study the effects of humic acid, humic acid, peat and weathered coal on soil urease activity and their effects on the growth and nutrient uptake of potted wheat seedlings and their effects on soil residual nitrogen.