photosynthetic nitrogenuse efficiency

例句：

1. 1.The photosynthetic efficiency of the plant is directly related to its growth rate.
   植物的光合作用效率与其生长速率直接相关。
2. 2.The high photosynthetic nitrogenuse efficiency of this crop can significantly increase its yield.
   这种作物的高光合氮效率可以显著提高其产量。
3. 3. To improve photosynthetic nitrogenuse efficiency, researchers are exploring new ways to enhance crop yields.
   为了提高光合氮效率，研究人员正在探索新的方法来提高作物产量。