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为了提高肥料利用率,提高盐碱地的棉花产量,研究了复合肥与腐植酸配合施用对盐碱地改良及棉花生长的影响。结果表明:于等量无机养分水平下,施用腐植酸能够有效地缓解土壤全盐量的增加,降低土壤酸碱度,增加土壤有机质含量。与对照和单独施用复合肥相比,复合肥与腐植酸配合施用棉花分别增产17.7%和5.8%。相
In order to improve the fertilizer utilization rate and increase the yield of cotton in saline-alkali soil, the effects of compound fertilizer and humic acid on the improvement of saline-alkali soil and the growth of cotton were studied. The results showed that under the same level of inorganic nutrients, humic acid could effectively alleviate the increase of soil total salinity, reduce soil pH and increase soil organic matter content. Comparing with control and single application of compound fertilizer, compound fertilizer and humic acid combined application of cotton increased yield by 17.7% and 5.8% respectively. phase