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通过小麦幼苗盆栽试验,研究以泥碳、褐煤及风化煤为原料制得的硝基腐植酸铵对~(32)P 标记过磷酸钙肥效的影响。试验证明,添加三种原料制成的硝基腐铵均能促进植物生长,提高植物含磷量。褐煤及风化煤硝基腐铵显著提高磷肥利用率,泥碳硝基腐铵提高土壤有效磷“A”值,促进植物吸收土壤磷。土柱试验中,三种硝基腐铵均能促进磷肥向下移动,增加下层土壤中有效磷-~(32)P 的含量,其中泥碳硝基腐铵效果尤显。
The pot experiment of wheat seedlings was used to study the effect of ammonium humic acid (NH4NO3) on the fertilization efficiency of ~ (32) P-labeled superphosphate using peat, lignite and weathered coal as raw materials. Experiments show that adding three kinds of raw materials made of nitro-ammonium can promote plant growth and improve plant phosphorus content. Lignite and weathered coal Nitroxonitrogen significantly increased the utilization rate of phosphate fertilizer. Nitrochloride of peat increased the value of soil available phosphorus and promoted the absorption of soil phosphorus by plants. In the soil column test, all three kinds of nitrophosphate could promote the downward movement of phosphate fertilizer and increase the content of available phosphorus- (32) P in the lower soil layer.