nitrate-nitrogen

常見例句

There was a tendency of increase of nitrate-nitrogen and decrease of ammonia-nitrogen along the FPB column, indicating a significant nitrification activity.
沿流化床高度，水中氨氮濃度呈沿程降低的趨勢，而硝態(tài)氮濃度呈增大趨勢，表明硝化作用比較明顯。
An experiment in field and artificial penetration-filter pond test both were conducted to show factors affecting content of nitrate-nitrogen in soil in the present study.
采用田間試驗及人工滲濾池試驗方法，研究了土壤中硝態(tài)氮含量的影響因素。
The effects of management practices in farmland including tillage practices, nitrogen-fertilizer and water management on nitrate-nitrogen transport in soil were reviewed.
從農(nóng)業(yè)耕作措施、氮肥管理、水管理等田間管理措施對土壤硝態(tài)氮遷移的影響方面進行了綜述，指出了研究中存在的問題與發(fā)展趨勢。