Pea (matar) is one of the most common pulse and vegetable crops grown in India, especially during the winter season. It is valued for its high protein content and soil-enriching ability, as it fixes nitrogen naturally. However, one of the biggest challenges in pea cultivation is weed management. Weeds compete with the crop for sunlight, water, and nutrients, and if left unchecked, they can reduce yield by up to 30–40%. Effective weed control ensures healthy plant growth, better flowering, and higher pod yield.
1. Why weed control is important
Pea plants are short and have a slow initial growth rate. During the first 30–40 days after sowing, the crop canopy is not dense enough to suppress weeds. This is the most critical period when weeds must be controlled. If weeds are allowed to grow during this stage, they take away valuable soil nutrients and moisture, making the crop weak and uneven. Later, weeds also make harvesting difficult and may increase pest and disease problems.
2. Common weeds in pea fields
Some common weeds found in pea fields are:
Chenopodium (bathua)
Melilotus (senji)
Anagallis (krishna neel)
Phalaris minor (gulli danda)
Cyperus rotundus (motha)
These weeds germinate along with the crop and grow vigorously if not managed early.
3. Methods of weed control
Weed control in peas can be achieved through a combination of cultural, mechanical, and chemical methods. Integrated weed management is always more effective and sustainable.
a) Cultural methods
Crop rotation: Avoid growing peas continuously in the same field. Rotating with cereals like wheat or maize helps break the weed cycle.
Timely sowing: Early sowing in well-prepared fields allows the crop to establish before major weed flushes appear.
Proper spacing: Maintain recommended spacing (30 cm between rows and 10 cm between plants) to ensure good canopy coverage that shades out weeds later.
b) Mechanical methods
Hand weeding: The first weeding should be done 20–25 days after sowing, followed by another 15 days later. This removes weeds during the critical early stage.
Hoeing or interculture: Light hoeing helps uproot weeds and improves aeration in the soil. Use small hand hoes or wheel weeders in wider-spaced varieties.
Mulching: Applying dry grass, straw, or plastic mulch between rows suppresses weed germination and conserves moisture.
c) Chemical control
Where labor is limited or large areas are under cultivation, herbicides can be used carefully.
Pre-emergence herbicide: Apply Pendimethalin (1.0 kg active ingredient per hectare) within 1–2 days after sowing, before crop and weed germination. It prevents most annual weeds from emerging.
Post-emergence spray: If some weeds still appear, a light interculture or spot weeding may be done later. Always follow label directions and spray when the soil is moist but not waterlogged.
4. Additional tips
Avoid excessive irrigation early on, as it promotes weed germination.
Never let weeds flower and set seeds, as this increases weed population next season.
Mix methods — a single approach rarely gives complete control.
Conclusion
Weed control in pea cultivation is essential for obtaining a healthy crop and good yields. The best strategy is to combine timely hand weeding, proper crop spacing, mulching, and selective herbicide use. Managing weeds early saves time and resources later, ensures better nutrient use by the crop, and results in cleaner, higher-quality peas ready for market. With a little attention to weed control, farmers can make pea cultivation more profitable and sustainable.
