数字农科院2.0

Effects of Expanded Polytetrafluoroethylene Porous Membrane Covering and Biochar on Nitrogen, Phosphorus, and Potassium Contents in Aerobic Composting

文献类型： 外文期刊

作者： Cao, Jie;Li, Ruirong;Qu, Haoli;Wang, Pengjun;Fu, Jingjing;Gong, Yan;Chen, Mingjiang

作者机构：

关键词： Biochar;Membrane covering;Potassium;Phosphorus;Aerobic composting;Nitrogen

期刊名称： BIORESOURCES

ISSN： 1930-2126

年卷期： 2025 年 20 卷 1 期

页码：

收录情况： SCIE（2025版） ; ; EI（2025版）

摘要： The effects of covering technology and the combined membrane covering with biochar on nutritional elements content during the aerobic composting process of agricultural waste were studied. The results showed that the concentration effect of organic matter degradation during composting increased the nitrogen, phosphorus, and potassium contents in all treatment groups. The proportion of available phosphorus and available potassium also increased to varying degrees. Compared with composting without an expanded poly(tetrafluoroethylene) (PTFE) covering with 0.2 to 0.4 mu m pores, the covered composting increased the total nitrogen, total phosphorus, total potassium, available phosphorus, and available potassium contents by 13.1%, 12.6%, 7.4%, 21.5%, and 16.6%, respectively, while the addition of biochar to polymer membrane-covered composting increased the total nitrogen, total phosphorus, total potassium, available phosphorus, and available potassium contents by 19.7%, 13.7%, 8.3%, 18.0%, and 20.2%, respectively. This study indicated that membrane covering technology can effectively increase the nutrient element contents in compost products and the availability of phosphorus and potassium and that the addition of biochar enhances these effects.

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