Light stimulates plant growth.

光会刺激植物生长。

Soil pH is critical to plant growth.

土壤pH值对于植物的生长很关键。

Red light has been known to accelerate plant growth.

众所周知，红光可以使植物加速生长。

Magnesium is the nutrient element in plant growth.

镁是植物生长的营养要素。

Plant growth needs sunshine, air and water as well.

植物生长需要阳光，需要空气，也同样需要水分。