Which of the following is a true statement regarding mineral nutrients in soils and their implication for primary productivity?
A) Globally, only phosphorus availability is most limiting to primary productivity.
B) Adding a non-limiting nutrient will stimulate primary productivity.
C) Adding more of a limiting nutrient will increase primary productivity regardless of other nutrient availability.
D) Phosphorus is sometimes unavailable to producers due to leaching.
E) Alkaline soils are more productive than acidic soils.

Question

Quizplus · Accepted Answer

Phosphorus is sometimes unavailable to producers due to leaching, which makes it a limiting nutrient for primary productivity. Adding more of a limiting nutrient (such as phosphorus) will increase primary productivity, but only if all other necessary nutrients are also available in adequate amounts. Adding a non-limiting nutrient will not stimulate primary productivity. The statement about alkaline soils being more productive than acidic soils is not necessarily true, as the optimal pH for plant growth varies by species.

Which of the Following Is a True Statement Regarding Mineral