Question

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

NCERT Class 8th Science Chapter 1 Crop Production and Management

Answer 1

preparation of soil means digging through the soil to plant the seed

Answer 2

Question:

Write a paragraph on , Preparation of soil , sowing , weeding , threshing

Answer:

i) Preparation of soil is the first step during agricultural practices . It is very important to prepare the soil by loosening it before the growing crops. That allows the plant roots to grow deep into the soil during crop production. The loosening of soil help earthworms and microbes to grow in the soil. The top layer of soil supports the plants to grow fast. so loosening of soil help the soil nutrients to come to the top of the soil.

ii) Sowing means to spreading the seeds in the soil. Before sowing we need to separate good quality of seeds. Sowing is generally done by a mechanical machine called seed drill..

iii) including the crop some other plants also grown in the fields. These are called weeds. some time weeds are harmful after harvesting maybe it will cause disease and decreases immunity power in both human and animals. also it can fight with crop to get water and nutrients. so that crops can't get the right quantity of water and nutrients. so we need to remove the weeds from the field. this is the process of removing weeds is called weeding. wedding is done manually by the equipment called as KHURPI..

iv) harvesting the seeds manually done by sickle or by harvester. the harvested crop grain needs to be separated from the Chaff. this process of separating chaffs from the grains is called threshing. this is done by the machine named as "combine" in fact a thresher and harvester.