Various ecological constraints are:

969ForestryMedium

ACompetition for water and nutrients and for solar energy

BNone of these

CBoth (a) & (b)

DFuture agroforestry systems will have to overcome physiological (canopy structure) biological (pests and disease), ecological (Sustainability and environment protection) constraints besides being economically sound

Correct answer

C. Both (a) & (b)

Explanation

The correct answer is Both (a) & (b).

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