인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
DBpia AI
AI 에이전트
AI 아이디어
AI 리더
AI 뷰어
Citeasy
크롬 서지관리 다운로드
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
The agrophysical condition of the soil is important for the successful development of agricultural production. The purpose of the study is to study the influence of grassland crop rotation crops on the agrophysical, biological properties of soil fertility and crop productivity in the forest-steppe zone of the Republic of North Ossetia-Alania. The research was carried out in the field stationary crop rotation of the NCMPARI VSC RAS in the conditions of the forest-steppe zone of the RNO-A. It was found that at the beginning of the growing season, the lumpy fraction under crop rotation crops varied from 13.34% to 49.45%, in the macrostructure – from 48.42% to 81.77%, on an aggregate 0.25 mm thick – from 1.77% to 7.99%. By the end of the growing season, the proportion of the silt fraction under winter wheat decreased from 8.01% to 1.09%. The structural coefficient ranged from 2.22% (corn) to 2.49% (oats + clover). Surveys have shown that the studied soil has a good structure, since it contains from 46.0% to 66.2% of water-bearing aggregates. On crops of oats + clover (on average 0-30 cm of soil layer), the soil density was 0.95 g/cm 3 at the beginning of the growing season, 1.19 g/cm 3 during the period of intensive growth, 1.22 g/cm 3 at the end of the growing season. This tendency is evident in all crops of crop rotation. It should be noted that rotation grass links are more productive, where food units harvesting (14.49 t/ha) exceeds the indicators of the tilled crop link (13.4 t/ha). In general, the energy value of the grassland link of the crop rotation turned out to be 206.62 MJ more than the tilled one, and amounted to 245.08 MJ/ha.
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
최근 본 자료 전체보기
