How does different spatial arrangements (e.g., 2:2, 4:2, paired row) in pearl millet-groundnut intercropping influence the productivity and yield components of both crops?
The spatial arrangement—the pattern of row combination and spacing between pearl millet and groundnut—has a significant impact on how effectively the two crops share resources, how much they compete, and the final yields of both crops.
PRACTICAL NOTES
- For maximum combined yield and efficient land use, the 1:1 spatial arrangement (one row of each) is often optimal.
- For greater groundnut production, increase groundnut rows, but this comes at the expense of millet yield.
- Local factors (soil, climate) can fine-tune the best arrangement, but balanced intercropping generally gives the best outcomes.
Spatial arrangements in pearl millet-groundnut intercropping affect light interception, root distribution, and nutrient competition, influencing productivity; row configurations and spacing can optimize complementary interactions, enhancing yields and resource efficiency, but imbalanced designs may reduce one crop's growth due to shading or soil depletion.
Spatial arrangement affects light interception, root interaction, and competition for nutrients. Optimal row ratios (like 2:1 or 4:2) can enhance yield by facilitating complementary resource use—pearl millet provides shade and structural support while groundnut fixes nitrogen, improving soil health and total productivity.
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