| 释义 |
Definition of nitrogen balance in English: nitrogen balancenoun 1Physiology the difference between the amounts of nitrogen taken in and excreted by an organism. 2Soil Science the difference between the amount of nitrogen added to a soil (by fertilization, nitrogen fixation, etc.) and the amount removed (by cropping, leaching, denitrification, etc.).
Origin Late 19th century; earliest use found in Science. Definition of nitrogen balance in US English: nitrogen balancenoun 1Physiology the difference between the amounts of nitrogen taken in and excreted by an organism. 2Soil Science the difference between the amount of nitrogen added to a soil (by fertilization, nitrogen fixation, etc.) and the amount removed (by cropping, leaching, denitrification, etc.).
Origin Late 19th century; earliest use found in Science. |