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以津优31号黄瓜为试验材料,研究了硫酸钾施用水平对黄瓜根际土壤酶活性的影响。试验结果表明,钾肥用量在0～1 000 kg/hm2内,土壤脲酶、碱性磷酸酶和蔗糖酶活性随施钾量的增加而增加,而过氧化氢酶活性无明显的变化。
The effect of potassium sulfate on enzyme activity in cucumber rhizosphere was studied using cucumber Jinyou 31 as experimental material. The results showed that the activities of soil urease, alkaline phosphatase and invertase increased with the increase of potassium application, while the activity of catalase did not change obviously.