---

作 者 ：刘明 张民 杨越超 程冬冬

期 刊 ：植物营养与肥料学报 2011年 17卷 4期 页码：1012-1017

关键词：控释肥；树脂残膜；微生物数量；酶活性；

Keywords:resin coating residual, microbial quantity, enzyme activity,

摘 要 ：为了探明控释肥树脂残膜对土壤环境可能造成的影响，采用小麦池栽试验研究了控释肥树脂残膜对土壤有关微生物数量和酶活性的影响。结果表明，控释肥树脂残膜使土壤细菌和放线菌数量分别相对增加了19.01%～62.87%和17.03%～132.39%，土壤脲酶、转化酶、中性磷酸酶活性分别提高了17.39%～85.71%、31.77%～158.40%、35.14%～189.47%，但对过氧化氢酶活性无明显影响。施肥处理（施肥不施残膜和施肥施残膜处理）显著增加了土壤转化酶和中性磷酸酶活性；但对土壤细菌和放线菌数量、过氧化氢酶和脲酶活性没有显著影响。控释肥树脂残膜施用量在90～360g/m2 范围内，对土壤细菌和放线菌数量以及有关土壤酶活性没有产生不良影响。

Abstract:Effects of controlled-release fertilizer (CRF) resin coating residual on microbial quantity and enzyme activity in soil were investigated in winter wheat experiment. The results indicate that with application of CRF resin coating residual, the numbers of bacteria and actinomyces are increased by 19.01%–62.87% and 17.03%–132.39%, respectively. The activities of soil urease, invertase, neutral phosphatase are significantly increased by 17.39%–85.71%, 31.77%–158.40%, 35.14%–189.47%, respectively, while the soil catalase activity is not affected. The activities of invertase, neutral phosphatase are improved by applying fertilizer to the soil (fertilizer with and without CRF resin coating residual treatments), however, the amounts of bacteria and actinomyces and the activities of catalase, urease are not changed. The amounts of bacteria and actinomyces and the activities of some enzymes could not be restrained under the condition of applying CRF resin coating residual at the range of 90~360g/m2 in soil.

---