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.
피인용 0
초록·키워드
pH and pe are very helpful values for understanding soil environmental conditions. Particularly, it has a great influence on the form of nutrients such as nitrogen. When pH+pe is less than 14.32, NO₂<SUP>-</SUP> increases and NO₂(g) produced from NO₂<SUP>-</SUP> harms crops. In this study, KOH, KMnO4, and sodium percarbonate (sp) were used to raise pH and pe to above the appropriate range (pH 6-7). While the pH was around 5 before the test, the pH was maintained at 6 or higher by all treatments until the end of the test (pH increment (ΔpH) after 5 days 1.0-2.5). pH+pe values were able to be corrected to 14.32 or more by KOH+KMnO₄ treatments and sp treatment in drip irrigation and excessive treatment was good at furrow irrigation with easily reductive condition. Potassium (K), which is one of soil cation exchange capacity (CEC), acts as a strong base to increase the pH, so it is necessary to carry out the CEC measurement and titration test before the KOH+KMnO₄ treatment. Mn<SUP>2+</SUP> is decreased by the precipitation reaction with phosphate ion (H₂PO₄<SUP>-</SUP>) in the soil. Phosphate input will be helpful to supply phosphate necessary for crop growth and to prevent Mn excess. In addition, when determining the amount of reagent treated, it is considered that the soil osmotic pressure should be lower than the plant osmotic pressure so as not to cause wilted plant.
본문·목차
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
UCI(KEPA) : I410-ECN-0101-2019-523-000170179
