CAJ | 학술논문

为了研究辽西地区玉米秸秆还田覆膜对土壤水分含量的影响，在大田中设置了玉米秸秆不同还田量的试验。试验设计为4个秸秆还田量水平，对照为秸秆不还田。结果表明：不同秸秆还田量各处理0—40cm土层土壤含水量和对照比较都有明显提高，而且除了600kg·hm^-2还田处理外，差异都达到了极显著水平，同一个处理土壤各层次之间的含水量多数差异都达到了显著或者极显著水平，且总体趋势表现为表层含水量低于中下层。但综合来看，还田量12000kg·hm^-2效果最佳，适合在当地推广。
위료연구료서지구옥미갈간환전복막대토양수분함량적영향，재대전중설치료옥미갈간불동환전량적시험。시험설계위4개갈간환전량수평，대조위갈간불환전。결과표명：불동갈간환전량각처리0—40cm토층토양함수량화대조비교도유명현제고，이차제료600kg·hm^-2환전처리외，차이도체도료겁현저수평，동일개처리토양각층차지간적함수량다수차이도체도료현저혹자겁현저수평，차총체추세표현위표층함수량저우중하층。단종합래간，환전량12000kg·hm^-2효과최가，괄합재당지추엄。
In order to study the effect of maize straw returning with film mulching on soil moisture content in western Liaoning,the experiment of different applied amount for maize straw were set up. Experimental design is 4 levels of amount of straw returning , CK being no straw-amended treatments. Result shows that ： soil moisture of 0- 40 cm layer improve significantly compared with the control under different straw amount of each treatment ; differences all reach a significant level except straw-return treatment of 600 kg · hm^-2 ; differences of soil water content within different layers in one straw-amended treatment reach a significant or very significant level except individual level;the overall trend shows that surface moisture content is below than that of the lower middle class. But straw-return being 12 000 kg· hm^-2 obtain the optimal effect and should be extended for the local.