CAJ | 학술논문

新疆棉花秸秆产量巨大，但是棉花秸秆的木质素和纤维素含量较高，不易被分解，很难作为饲料利用。本文研究了棉花秸秆在不同条件（土壤水分、棉花机械长度）处理下的分解速率。从土壤水分条件来看，棉花秸秆在50%土壤饱和含水量下的分解最为理想，其分解率在100 d后达到54.08%；从棉花秸秆粉碎程度来看，棉花秸秆粉碎越细越有利于其分解，但是3 cm处理100 d后分解率为54.12%，而1 cm处理100 d后分解率只有47.42%，说明棉花秸秆分解需要一定的孔隙度。另外，棉花秸秆分解之后对土壤肥力也有很大影响。此次试验结果可为推广大田试验提供科学依据。
신강면화갈간산량거대，단시면화갈간적목질소화섬유소함량교고，불역피분해，흔난작위사료이용。본문연구료면화갈간재불동조건（토양수분、면화궤계장도）처리하적분해속솔。종토양수분조건래간，면화갈간재50%토양포화함수량하적분해최위이상，기분해솔재100 d후체도54.08%；종면화갈간분쇄정도래간，면화갈간분쇄월세월유리우기분해，단시3 cm처리100 d후분해솔위54.12%，이1 cm처리100 d후분해솔지유47.42%，설명면화갈간분해수요일정적공극도。령외，면화갈간분해지후대토양비력야유흔대영향。차차시험결과가위추엄대전시험제공과학의거。
The yield of cotton straw is huge in Xinjiang , but it is not easy to be decomposed because the lignin and cellulose content of cotton straw are high, so it can hardly be used as feedstuff. The decomposition rate of cotton stalk in different conditions(soil moisture and length of cotton straw machinery processing)was researched. From the perspective of soil moisture, 50%saturation moisture content was the most ideal condition for cotton stalk decomposition and its decomposition rate was up to 54.08%after 100 days. From perspective of degree of cotton stalk crush, the thinner cotton stalk crushing, the more conducive to their decomposition. But the decomposition rate of 3 cm treatment was 54.12%and only 47.42%for the 1 cm treatment after 100 days. These results demonstrated that cotton stalk decomposition required certain porosity. In addition, the cotton stalk after decomposition would influence greatly on the fertility of soil. Above all, the results of this paper could give a scientific basis for the field experiments of cotton stalk returning to fields.