Question

III. Answer the following questions in brief :
2. What is pisciculture?
3. Why are fertilisers generally preferred over ma
4. What is field fallowing?
5. Why transplantation is better than broadcasti
6. What are pesticides? Give some examples.
7. What are weeds? Give1. What is the importance of tilling?
some example of we​

Answer 1

Answer:

2.The breeding, rearing, and transplantation of fish by artificial means is called pisciculture, in other words, fish farming. It is the principal form of aquaculture, while other methods may fall under mariculture. It involves raising fish commercially in tanks or enclosures, usually for food.

3. Fertilizers are generally preferred over manures due to the one major benefit that is it increases the production of the crops.

4.Fallow is a farming technique in which arable land is left without sowing for one or more vegetative cycles. The goal of fallowing is to allow the land to recover and store organic matter while retaining moisture and disrupting the lifecycles of pathogens by temporarily removing their hosts.

5.BECAUSE IN BROADCASTING THE SEEDS ARE THROWN ANYWHERE WITHOUT TAKING PROPER METHODS. AND WHEN THE PLANTS GROW THERE IS A COMPETITION BETWEEN THE PLANTS AS EACH PLANT WANT SUNLIGHT , WATER AND AIR.

6. A substance used for destroying insects or other organisms harmful to cultivated plants or to animals.example=Common Types of Pesticides

Category Purpose

Insecticides Kills or repel insects, ticks and mites

Herbicides Kills weeds or unwanted plants.

Funweed is a plant considered undesirable in a particular situation, "a plant in the wrong place". Examples commonly are plants unwanted in human-controlled settings, such as farm fields, gardens, lawns, and parks. ... In the same way, volunteer crops (plants) are regarded as weeds in a subsequent crop.gicides Kills mould, mildew and other fungi.

7.weed is a plant considered undesirable in a particular situation, "a plant in the wrong place". Examples commonly are plants unwanted in human-controlled settings, such as farm fields, gardens, lawns, and parks. ... In the same way, volunteer crops (plants) are regarded as weeds in a subsequent crop.Turning your soil twice a year is a good defense against weeds and other insects from invading and damaging your plants. Tilling also helps break down weed roots, along with the homes of other insects, helping to prevent these pests from intruding your garden.

A few examples of broadleaf weeds are clover, dandelion, and purslane. Some examples of grassy type weeds are nutsedge, pampas grass, and bermuda grass. Weeds can be further divided into annuals, biennials, and perennials.

Explanation:

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