Influences of application of slow-release Nano-fertilizer on green pepper growth, soil nutrients and enzyme activity

Abstract

In order to examine the fertilizer effect of slow-release Nano-fertilizer and its impact on the ecological environment, a cultivation pot experiment was arranged to study the influences of application of slow-release Nano-fertilizer on green pepper growth, soil Nutrients, enzyme activity and microorganisms. The experiment was designed to have four treatments: treatment 1 (blank treatment), treatment 2 (slow-release Nano-fertilizer), treatment 3 (composite chemical fertilizer), treatment 4 (slow-release Nano-fertilizer + compound fertilizer), and each treatment was five parallels. The results were as follows: (1) The application of slow-release Nano-fertilizer can promote the growth of green pepper, but due to the slow effect of fertilizer, the growth of green pepper was not as good as that of chemical fertilizer. (2) Application of slow-release Nano-fertilizer significantly increased soil nutrients, especially alkaline nitrogen, with an increase of 100.0%. (3) Application of slow-release Nano-fertilizer significantly increased soil enzyme activity and soil microbial population. Compared with blank, soil dehydrogenase and catalase activities of treatment 2 increased by 37.4% and 21.3%, respectively, and soil bacteria, actinomycetes and fungi increased by 50%, 72% and 208%, respectively. Application of slow-release Nano-fertilizer can improved soil nutrient, soil enzyme activity and soil microorganism, reduce nutrient loss and improve soil ecological environment, with a good application value.