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通过模拟试验研究了鸡粪和奶牛粪肥堆腐过程中有机酸的种类、含量和变化规律。结果表明 ,鸡粪腐熟过程中会形成和累积大量的有机酸 ,在堆腐的第 5周 ,最高含量可达 88 2cmol/kg ,DW ;不挥发性有机酸在堆腐的第 3周和第 5周分别达到两个高峰 ,挥发性有机酸在第 6周和第 9周分别达到高峰 ,到第 9周后 ,鸡粪中的有机酸大大降低。鸡粪中除了存在大量的芳香酸如苯二酸及其衍生物外 ,在堆腐的过程中还有大量的丁二酸及其衍生物等多元脂肪酸生成。奶牛粪肥的有机酸以不挥发性有机酸为主 ,总酸量最高可达 2 9 38cmol/kg ,DW ;奶牛粪肥中的不挥发有机酸主要是苯二羧酸的衍生物和长链脂肪酸。堆腐过程中有机酸的种类和数量变化较大。堆腐的第 6周 ,产生了多种激素类物质
The types, contents and changes of organic acids in the composting process of chicken manure and cow manure were studied by simulating experiments. The results showed that a large amount of organic acids were formed and accumulated during the composting of chicken manure, and the highest content reached 88 2cmol / kg DW in the fifth week of composting. In the third week and the Five peaks reached two peaks respectively, the volatile organic acids peaked at the sixth week and the ninth week, respectively, and the organic acids in chicken manure decreased significantly after the ninth week. Chicken manure in addition to a large number of aromatic acids such as phthalic acid and its derivatives, in the process of heap also a large number of succinic acid and its derivatives and other fatty acids generated. Dairy cattle manure organic acids mainly non-volatile organic acids, the total acid amount up to 2 9 38cmol / kg, DW; dairy manure in non-volatile organic acids mainly phthalic acid derivatives and long-chain fatty acids. The type and amount of organic acids vary greatly during the composting process. The first 6 weeks of heap rot, produced a variety of hormones