CAJ | 학술논문

在吉林省中部黑土区通过构造不同类型耕层，探讨不同耕层构造对土壤硬度和含水量的影响。结果表明，各处理土壤硬度0～20 cm波动较大，21～45 cm趋于平缓。各处理平均值比较，垄作苗紧行紧土壤最紧实，其次是平作苗紧行紧和传统耕作方式(P<0.05)。土壤含水量随土壤深度的增加呈先增加后降低的趋势，0～30 cm呈增加趋势变化，31～60 cm呈降低趋势。苗紧行松处理含水量在土壤各深度均高于传统耕法，处理间差异达到显著水平(P<0.05)。苗紧行松耕作有效降低土壤硬度，提高土壤含水量，土壤结构改善，耕层土壤水气协调。
재길림성중부흑토구통과구조불동류형경층，탐토불동경층구조대토양경도화함수량적영향。결과표명，각처리토양경도0～20 cm파동교대，21～45 cm추우평완。각처리평균치비교，롱작묘긴행긴토양최긴실，기차시평작묘긴행긴화전통경작방식(P<0.05)。토양함수량수토양심도적증가정선증가후강저적추세，0～30 cm정증가추세변화，31～60 cm정강저추세。묘긴행송처리함수량재토양각심도균고우전통경법，처리간차이체도현저수평(P<0.05)。묘긴행송경작유효강저토양경도，제고토양함수량，토양결구개선，경층토양수기협조。
The experiments were designed in the middle black soil zone of Jilin province. The results showed that the difference of soil compaction of different treats were significant from 0 to 20 cm in profile of soil. The difference of treatments was not significant from 21 cm to 45 cm. Through comparison of different treatments with the average of soil compaction from 0 to 45 cm, soil compaction of MJHJ with ridge was most hardness, MJHJ with plain and conventional tillage were secondary. Soil water content was increased with depth from 0 to 30 cm, but it was decreased with depth from 31 cm to 60 cm. The soil water content of MJHS was higher than conventional tillage at every depth of soil layer from 0 to 60 cm, the difference was significant(P<0.05). So, MJHS tillage could decrease soil compaction, increase soil water content, improve soil structure, moderate water and air in the soil.