Various ecological constraints are:
Correct answer: D. Both (a) & (b)
- A. Competition for water and nutrients and for solar energy
- B. Future agroforestry systems will have to overcome physiological (canopy structure) biological (pests and disease), ecological (Sustainability and environment protection) constraints besides being economically sound
- C. None of these
- D. Both (a) & (b)
Explanation
Agroforestry systems face competition for water, nutrients and light, as well as physiological, biological and environmental constraints. Therefore, both listed statements describe ecological constraints.
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