field crop abstract 中文意思是什麼

field crop abstract 解釋
大田作物文摘
  • field : n 菲爾德〈姓氏〉。n 1 原野,曠野;(海、空、冰雪等的)茫茫一片。2 田地,牧場;割草場;〈pl 〉〈集...
  • crop : n 1 農作物,莊稼;收獲;收成;〈the crops〉 一季的收獲量,產量。2 (同一時期出現的人物等)一批,...
  • abstract : adj 1 抽象的 (opp concrete); 理論上的 (opp applied); 觀念的,空想的 (opp practical)。2 難解...
  1. Abstract : results of a ten year ' s field experiment indicated that the use of nutrients recycled in the farming systems with appropriate amount of fertilizer applied according to the soil nutrient supplying ability could not only produce high crop yield but also balance the soil nutrient budget so that there were no significant surplus of nutrients ( mainly inorganic nitrogen ) which may emit or leach out of soil into environment

    文摘:持續10a的田間試驗結果表明,在保持農業系統養分循環再利用的基礎上,根據土壤養分供給力設計化肥施用量,可以在實現作物高產的同時,平衡土壤養分收支,從而避免土壤中肥料養分(主要是氮)過剩而進入環境。
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