mention any four methods of sustainable agriculture
Answers
- integrated pest management
- crop rotation
- make use of renewable natural resources
- crop diversity
- avoid soil erosion
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Answer:
Crop Rotation. Crop rotation is one of the most powerful techniques of sustainable agriculture. ...
Permaculture. ...
Cover Crops. ...
Soil Enrichment. ...
Natural Pest Predators. ...
Bio intensive Integrated Pest Management. ...
Polyculture Farming. ...
Agroforestry.
● Crop Rotation
Crop rotation is one of the most powerful techniques of sustainable agriculture. Its purpose is to avoid the consequences that come with planting the same crops in the same soil for years in a row. It helps tackle pest problems, as many pests prefer specific crops. If the pests have a steady food supply, they can greatly increase their population size.Rotation breaks the reproduction cycles of pests. During rotation, farmers can plant certain crops, which replenish plant nutrients. These crops reduce the need for chemical fertilizers.
● Permaculture
Permaculture is a food production system with intention, design, and smart farming to reduce waste of resources and create increased production efficiency. Permaculture design techniques include growing grain without tillage, herb and plant spirals, hugelkultur garden beds, keyhole and mandala gardens, sheet mulching, each plant serving multiple purposes, and creating swales on contour to hold water high on the landscape.
It focuses on the use of perennial crops such as fruit trees, nut trees, and shrubs all together to function in a designed system that mimics how plants in a natural ecosystem would function.
● Cover Crops
Many farmers choose to have crops planted in a field at all times and never leave it barren; this can cause unintended consequences. By planting cover crops, such as clover or oats, the farmer can achieve his goals of preventing soil erosion, suppressing the growth of weeds, and enhancing the quality of the soil. The use of cover crops also reduces the need for chemicals such as fertilizers.
● Soil Enrichment
Soil is a central component of agricultural ecosystems. Healthy soil is full of life, which can often be killed by the overuse of pesticides. Good soils can increase yields as well as help create more robust crops.
It is possible to maintain and enhance the quality of the soil in many ways. Some examples include leaving crop residue in the field after a harvest, and the use of composted plant material or animal manure