例句與造句

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(xù)10a的田間試驗(yàn)結(jié)果表明，在保持農(nóng)業(yè)系統(tǒng)養(yǎng)分循環(huán)再利用的基礎(chǔ)上，根據(jù)土壤養(yǎng)分供給力設(shè)計(jì)化肥施用量，可以在實(shí)現(xiàn)作物高產(chǎn)的同時，平衡土壤養(yǎng)分收支，從而避免土壤中肥料養(yǎng)分（主要是氮）過剩而進(jìn)入環(huán)境。
2. It's difficult to find nutrient budget in a sentence. 用nutrient budget造句挺難的