Step 1: Understanding the Concept:
Pruning is a silvicultural operation involving the selective removal of specific branches from a tree.
In agroforestry, pruning is a critical tool used to manage the physical and biological interactions between trees and companion crops.
Step 2: Detailed Explanation:
- Statement I: In simultaneous agroforestry systems, trees can cast heavy shade that limits the growth of understory agricultural crops.
Pruning open the canopy reduces the shade effect, allowing more sunlight to reach the companion crops, thereby minimizing light competition and favoring intercrop yield. This is true.
- Statement II: The biomass harvested from pruning (pruned branches and twigs) provides secondary benefits.
It serves as a valuable source of fuelwood, fodder, or organic mulch for the soil. This is true.
Step 3: Final Answer:
Both Statement (I) and Statement (II) are true.