CAJ | 학술논문

为了探讨机械作业改良白浆土,以常规机械作业为对照,设6个处理,研究心土不同间隔混拌对白浆土物理性质及大豆产量的影响。结果表明：与对照相比,改土2年后不同处理20～60cm混拌层都能提高土壤含水量,增幅1.02%～4.90%;降低土壤容重,降幅4.93%～10.56%;降低土壤硬度,降幅3.05%～28.15%;以单向条沟改良（T2）效果最好。6个处理中,隔垄交错条沟改良（T5）和单向条沟改良（T2）大豆产量最好,分别达到1991.92kg/hm^2和1969.57kg/hm^2,比常规机械作业提高7.92%和6.71%,差异达到显著水平。
위료탐토궤계작업개량백장토,이상규궤계작업위대조,설6개처리,연구심토불동간격혼반대백장토물이성질급대두산량적영향。결과표명：여대조상비,개토2년후불동처리20～60cm혼반층도능제고토양함수량,증폭1.02%～4.90%;강저토양용중,강폭4.93%～10.56%;강저토양경도,강폭3.05%～28.15%;이단향조구개량（T2）효과최호。6개처리중,격롱교착조구개량（T5）화단향조구개량（T2）대두산량최호,분별체도1991.92kg/hm^2화1969.57kg/hm^2,비상규궤계작업제고7.92%화6.71%,차이체도현저수평。
In order to study the machinery working improved planosol,six treatments was established compared with conventional machinery working,the effects of different subsoil mixing interval on planosol physical characters and yield of soybean were investigated.Compared with conventional mechanical operation,the results indicated that two years later after improve the soil 20-60 cm subsoil mixing layer could increase the soil water content,decrease the soil bulk density and decrease the soil hardness of different treatments.In addition,the increased range of soil water content was 1.02%-4.90%,the decreasing range of soil bulk density was 4.93%-10.56% and the decreasing range of soil hardness was 3.05%-28.15%,respectively.The treatments of T2 effect was the best.Among six treatments,the higher yield were the treatments of T5 and T2 and can be reached 1991.92 kg/hm2 and 1969.57 kg/hm2.Compared with conventional mechanical operation,the yield increased by 7.92% and 6.71%,the difference reached significant levels.