Question

(D)
4. Write a paragraph in your own words on each of the following.
(a) Preparation of soil
(b) Sowing
(d) Threshing
(c) Weeding​

Answer 1

Answer:

1)Preparation of soil:The preparation of soil is the first step before growing a crop.One of the most important tasks in agriculture is to turn the soil and loosen it.This allows the roots to penetrate deep into the soil.The loose soil allows the roots to breathe easily even when they go deep into the soil.

2)Sowing:Sowing is an important part of crop production.Before sowing,good quality,clean and healthy seeds of a good variety–are selected.Farmers prefer to use seeds which give high yield.

3)Thersing:Threshing is the process of loosening the edible part of grain (or other crop) from the straw to which it is attached. It is the step in grain preparation after reaping. Threshing does not remove the bran from the grain.

4)Weeding:The process of removing unwanted plants from the field is known as weeding. Weeding of the agricultural field done by mainly two types of methods called tilling and mowing. In tilling, the weed plants are tilled completely with the roots and removed. Mowing is cutting of the unwanted plants that grow in the field.

Answer 2

(a) Preparation of soil

(a) Preparation of soil(b) Sowing

(a) Preparation of soil(b) Sowing(c) Weeding

(a) Preparation of soil(b) Sowing(c) Weeding(d) Threshing

(a) Preparation of soil(b) Sowing(c) Weeding(d) ThreshingSoln:

a) Preparation of the soil is the first step in agriculture. Preparation of the soil is done to loosen the soil, which is essential for the root penetration into the soil. This allows the roots to breathe easily. Loosening of the soil allows the growth of earthworms and microorganisms, which will help to keep the soil fertile by adding humus to the soil. Loosening of soil also brings nutrient-rich soil to the top layer, which is essential for the growth of plants.

b) Sowing is an important process in crop production. First, healthy seeds are selected before sowing. After selecting healthy seeds sowing is done by either traditional methods or by using equipment’s seed drill.

c) Removal of unnecessary plants from the field is called weeding. Weeds compete with crop plants for nutrients and water. This will reduce the yield of the desired crops. Weeds also interfere while harvesting and gets mixed with crops. Some weeds are poisonous to animals and humans. Tilling is a common method which helps removal of weeds before sowing crops, manual methods like physical removal of plants are used to remove weeds. Weedicides are sprayed to get rid of weeds, but this method may affect the health of farmers because of chemicals used as weedicides.

d) Process of separating the chaff from the crop is known as threshing. Threshing is carried by a machine called ‘combine’ which is a harvester as well as a thresher. Threshing is also done by winnowing where to blow of wind is used to separate the chaff from crops.

hope it helps !