Types of mulching: Organic vs Plastic mulches
Farmers select mulching materials based on crop duration, field layout, and organic goals.
Key mulching types:
- Organic mulches: Chopped paddy straw, wheat straw, sugarcane trash, dried leaves, and wood shavings; naturally decompose over time to add organic carbon to the soil.
- Silver-Black plastic mulch: The agricultural benchmark for commercial vegetables; the reflective silver upper side repels aphids and thrips while the black underside blocks sunlight to halt weed germination.
- Black plastic mulch: Absorbs heat to warm soil during cold winter crops, ideal for early spring vegetables.
- Thickness selection: 25 to 30 microns for annual vegetable crops; 50 to 100 microns for perennial fruit orchards (mango, pomegranate, guava).
Agronomic benefits for crop production
Mulching transforms soil moisture dynamics and root microclimates.
Measurable advantages:
- Moisture conservation: Reduces soil evaporation losses by 40% to 50%, saving pumping electricity and irrigation water.
- Complete weed control: Dense shade under black mulch starves emerging weed seedlings of light, eliminating costly manual weeding.
- Soil temperature moderation: Buffers root zones against scorching summer heat and cold winter soil shock.
- Clean, rot-free produce: Keeps developing fruits (strawberries, melons, tomatoes) off damp soil, reducing fungal fruit rot and enhancing auction market grades.
Installation with drip irrigation and MIDH government subsidy
Always lay drip lateral lines beneath the plastic mulch before burying sheet edges in soil furrows. Under the Mission for Integrated Development of Horticulture (MIDH) and PMKSY, state horticulture departments provide capital subsidies for plastic mulching films. Farmers can apply online on state horticulture portals.
Official source
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Mission for Integrated Development of Horticulture (MIDH) ↗Related on KisanPe
Common questions
What is the recommended plastic mulch thickness for tomato and chilli?
A thickness of 25 to 30 microns (0.025 to 0.030 mm) of silver-black polyethylene film is ideal for annual vegetable crops.
Why is silver-black plastic mulch preferred over plain black mulch?
The silver side reflects sunlight to cool the soil and deter insect pests, while the black underside blocks light to completely suppress weed growth.
Is government subsidy available for agricultural plastic mulching?
Yes, capital subsidies are provided under MIDH and state horticulture department schemes accessible via official state portals.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
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