本文選題：腐稈劑 + 水稻秸稈�。� 參考：《環(huán)境工程學(xué)報》2016年02期

【摘要】：以水稻秸稈為代表性秸稈,研究了腐稈劑對秸稈腐解性能的影響。對秸稈中施用腐稈劑后各項基本指標(biāo)(腐解率,C/N)進行測定,探索了不同時間、腐稈劑用量、p H、溫度、含水量和尿素用量對秸稈腐解的影響。對腐解前后的秸稈進行了紅外光譜(IR)分析。結(jié)果表明,秸稈在腐解25 d后速率趨于平緩;腐解的適宜p H為7.0、溫度為30℃、含水量為80%、尿素用量和腐稈劑用量均為秸稈質(zhì)量的1%,此條件下腐解25 d,腐解率可達(dá)40.73%。對比腐解前后秸稈的紅外譜圖發(fā)現(xiàn),腐解后的秸稈中纖維素、木質(zhì)素和半纖維素等碳水化合物發(fā)生分解,使羥基和亞甲基基團減少,同時也表明酚類化合物被氧化成醌類物質(zhì);秸稈中的蛋白質(zhì)和氨基酸分解后生成酰胺類化合物、硝酸鹽和銨鹽。
[Abstract]:The effects of straw saprophyte on the decomposition properties of rice straw were studied. The basic indexes (decomposition rate C / N) after the application of saproxide in straw were determined. The effects of the amount of saprophyte, temperature, water content and urea dosage on the decomposition of straw were investigated in different time. The straw before and after decomposition was analyzed by IR. The results showed that the rate of decomposition of straw tended to be gentle after 25 days of decomposition, the optimum decomposition rate was 7.0, the temperature was 30 鈩，

本文編號：1885244