Tilling: In this method, weeds are removed by uprooting or killing them before sowing the seeds. Manual labour: In this method, weeds are removed by uprooting them which are close to the ground, from time to time with the help of khurpi. Use of weedicides: Weedicide is a chemical used to remove weeds from the field.
Herbicide application can provide the most effective and time-efficient method of managing weeds. Numerous herbicides are available that provide effective weed control and are selective so that grasses are not injured.
Spraying weedicides on the weeds. Manually plucking the weeds by hands. Removing weeds by trowel and harrow. Ploughing the field to remove the weeds even before sowing the seeds.
Burial to 1 cm depth and cutting at the soil surface are the most effective ways to control weed seedlings mechanically. Mechanical weeders include cultivating tools such as hoes, harrows, tines and brush weeders, cutting tools like mowers and stimmers, and dual-purpose implements like thistle-bars.
Hand-hoeing or hand-pulling of weeds is always a part of crop management because cultivation does not remove all of the weeds. In some crops there may not be any other method of control. By removing the few remaining weeds in the crop, not only will there be less competition, but fewer weed seeds will be produced.
PIanting Method
Sowing of clean crop seeds without weed seeds should be done. It is a preventive method against introduction of weeds. Sowings are taken up one to three days after rainfall or irrigation depending on soil type. Weeds already present in the soil start geminating within two or three days.
Weed control is important in agriculture. Methods include hand cultivation with hoes, powered cultivation with cultivators, smothering with mulch, lethal wilting with high heat, burning, and chemical control with herbicides (weed killers).
It can be done by a few methods which are mentioned as follows: (a) Manual: In this method, the weed is uprooted from the soil by hands in the crop fields and then burnt. (b) Weedicide: These are inorganic chemicals that are sprayed in the crop fields and kill those weed plants.
Weeds are the unwanted plants that comete with the crops for nutrients and various other factors. Thus, they damage crops by affecting their growth. Some examples of weeds are: Bermuda grass, Cannabis etc.
Apart from chemicals, a natural way to get rid of weeds is by intercropping. Growing a combination of 2 or more crops in the same farm prevents the growth of weeds as the weeds won't have enough space or nutrition to grow. Also, intercropping with natural weedicide plants can also prevent and destroy weeds.
They rob soil moisture and nutrients from the competing crop and decrease harvest efficiencies. Weeds also compete with the crop for sunlight. Because they are plants competing to survive in a limited space, weeds are actively removing nutrients from the soil to grow taller, stronger and healthier each day.
Hoe (P) is a simple tool which is used for removing weeds and for loosening the soil.
The two mechanical control techniques most often used are tillage and mowing. Biological weed control refers to any technique that involves the use of natural enemies of weed plants to control the germination of weed seeds or the spread of established plants.
Hoe is used to remove weeds and to loosen the soil. Hoe works like a blade. Axe is used to cut the trees. Plough isused for tilling of soil.
Chemicals that kill weeds are known as herbicides.
Weeds compete with the crop plants for all essential requirements like water, nutrients, space and light and reduce the growth of crop in various ways. Hence it is important to remove weeds from the cultivated field in early stage of the crop in order to get a high yield of the crop.
They interfere in harvesting. They compete with crop plants for water, nutrients, space and light. They affect plant growth. Presence of weeds increases the cost of agriculture and hinders the progress of work.
The khurpi also known as a hand hoe is most commonly used hand tool for weeding. The tool is used in squatting position.
Hand-hoeing or hand-pulling of weeds is always a part of crop management because cultivation does not remove all of the weeds. In some crops there may not be any other method of control. By removing the few remaining weeds in the crop, not only will there be less competition, but fewer weed seeds will be produced.
It is best to prevent weeds from growing by using various forms of soil cover. These methods are cheap and avoid disturbing the soil. You can then kill any weeds that do grow by using a hand hoe or machete, or with herbicides. There are various ways to control weeds using crops and other forms of soil cover.