【摘 要】
：
为确定氰氨化钙对土壤微生物学性质的影响和合理用量,浙江省科技人员采用随机区组试验方法进行田间原位试验,研究了不同氰氨化钙施用量对退化雷竹林土壤微生物量碳、真菌/细
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为确定氰氨化钙对土壤微生物学性质的影响和合理用量,浙江省科技人员采用随机区组试验方法进行田间原位试验,研究了不同氰氨化钙施用量对退化雷竹林土壤微生物量碳、真菌/细菌比值以及土壤酶活性的影响。试验设置氰氨化钙施用量0、30、60、90、180克/平米,分别在施用后的第1、3、7、14、28天采集0~20厘米土样,测定土壤微生物量以及土壤脱氢酶、转化酶、脲酶、磷酸酶活性。结果表明:(1)土壤中添加氰氨化钙在短期内对微生物
In order to determine the influence and reasonable dosage of CaCO3 on the soil microbiological properties, Zhejiang province scientific and technical personnel used the randomized block test method to carry out in-situ field experiments to study the effects of different CaCO3 application rates on soil microbial biomass carbon , Fungal / bacterial ratio and soil enzyme activity. The experiment was to set the dosage of cyanamide to 0, 30, 60, 90 and 180 g / m2. Soil samples of 0-20 cm were collected on the 1st, 3rd, 7th, 14th and 28th day after the application, Soil dehydrogenase, invertase, urease, phosphatase activity. The results showed that: (1) soil calcium cyanamide added in the short term against microorganisms
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