CAJ | 학술논문

采用秸秆还田室内培养试验，向土壤中添加4%不同形态玉米秸秆和根系进行室内培养腐解转化，探讨不同土壤圈对微团聚体的作用。结果表明：相同处理，不同圈数，从内层（0）到外层（7），粒径为0.05～0.02mm和0.02～0.002mm依次增加，而＜0.002mm及＞0.25mm则表现为依次降低。可知：添加有机物降低了粒径0.05～0.02mm和0.02～0.002mm微团聚体含量，增加了＜0.002mm及＞0.25mm团聚体含量；相同圈土壤，不同处理间，团聚体变化最为明显的为N2处理，故各处理间比较，添加秸秆粉末对土壤微团聚体含量影响最为明显。由此可知，添加秸秆对土壤微团聚体的形成具有明显作用，为秸秆还田培肥土壤提供理论依据和技术参考。
채용갈간환전실내배양시험，향토양중첨가4%불동형태옥미갈간화근계진행실내배양부해전화，탐토불동토양권대미단취체적작용。결과표명：상동처리，불동권수，종내층（0）도외층（7），립경위0.05～0.02mm화0.02～0.002mm의차증가，이＜0.002mm급＞0.25mm칙표현위의차강저。가지：첨가유궤물강저료립경0.05～0.02mm화0.02～0.002mm미단취체함량，증가료＜0.002mm급＞0.25mm단취체함량；상동권토양，불동처리간，단취체변화최위명현적위N2처리，고각처리간비교，첨가갈간분말대토양미단취체함량영향최위명현。유차가지，첨가갈간대토양미단취체적형성구유명현작용，위갈간환전배비토양제공이론의거화기술삼고。
This paper adopts straw returning by incubation test,adding 4% different morphology corn straw and root to the soil to decomposing and transformation,in order to discuss the effect of different soil circle on micro aggregate. The results prove that the same processing,different number of turns,from the inner(0) to the outer layer(7),particle size of 0.05~0.02mm and 0.02~0.002mm is increased in turn;While<0.002mm and >0.25mm is reduced in turn.It can be seen that adding organic matter reduced particle size 0.05~0.02mm and 0.02~0.002mm micro aggregate content,increase the aggregate content<0.002 and >0.25mm;The same soil,different processing,aggregate the most obvious change is for N2 handling,so that the comparison between the groups,adding straw powder was most pronounced influence on soil micro ag-gregate content.Accordingly,adding straw plays an obvious role in formation of soil micro aggregate. It pro-vides theoretical basis and technical reference for straw counters-field enriching the soil.