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Weed Control without using of chemicals

Weed Control

In organic farming, the weeds are controlled without the use of chemical herbicides. Different strategies are adopted to prevent weeds from competing with the crops for nutrient and water. This can be done by limiting the germination of weed seeds of the following methods:

Using cover crops: They not only add organic matter into the soil, but also shade out "weeds". This  means that weeds do not enough sunlight to enable them to reach maturity and set seed.

Pre-irrigating the field to germinate weed seeds, and then ploughing them before they mature to reduce weed seeds in the soil.

Using drip irrigation, whenever possible, to distribute water only around the plant line. This technique not only conserves water, but also limits water availability to weeds in the field.

Crop rotation

The practice of alternating the species or families of annual and/ or biennial crops grown on a specific field in a planned pattern or sequence so as to break weed/pest and disease cycles and to improve soil fertility and organic matter is called crop rotation. Planting the same crop in the same location time after time (mono cropping) encourages the build up of diseases and pests that plague that particular crop. Crop rotation helps in overcoming this problem without the use of any chemicals.

Biological control of weeds: By using biologically derived chemicals by using insects that prevent growth of weeds.

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Please note that this is the opinion of the author and is Not Certified by ICAR or any of its authorised agents.