CAJ | 학술논문

试验研究了3种可降解地膜对土壤养分和棉花产量的影响，并与普通地膜进行对比。结果表明：覆膜处理在棉花蕾期显著提高了表层土壤中碱解氮、有效磷和速效钾的含量，同时EC值提高，可降解地膜处理的土壤EC值和养分含量均高于普通膜处理。3种可降解地膜与普通地膜覆盖比不覆膜处理棉花分别增产12．3％、10．2％、5．7％和4．7％。
시험연구료3충가강해지막대토양양분화면화산량적영향，병여보통지막진행대비。결과표명：복막처리재면화뢰기현저제고료표층토양중감해담、유효린화속효갑적함량，동시EC치제고，가강해지막처리적토양EC치화양분함량균고우보통막처리。3충가강해지막여보통지막복개비불복막처리면화분별증산12．3％、10．2％、5．7％화4．7％。
The effects of mulching with three kinds of degradable plastic films from the Eco -benign Plastics Technology Limited Company on soil nutrient and cotton yield were studied and compared with ordina -ry film as check .The results showed that film mulching significantly increased the content of available nitro-gen, phosphorous and potassium , and EC value in surface soil at cotton bud stage .The EC value and soil nu-trient contents of degradable plastic film treatments were higher than those of ordinary film treatment .The cot-ton yield of degradable film treatments and ordinary film treatment increased by 12.3%, 10.2%, 5.7%and 4 .7%respectively compared with no film mulching treatment .