write a paragraph of 1. preparation of soil 2. sowing 3. weeding 4. threshing 5. irrigation and their methods 6. explain how soil gets affected by the continuous plantation of crops in a field
Answers
Answer:
(a) Preparation of soil
Preparation of soil is the first step before growing of crop. It helps to turn the soil and loosen it to allow the roots to penetrate deep into it. The loosening of the soil helps in the growth of several soil microbes, earthworms etc., which enrich the soil with humus and other essential nutrients. The process of turning and loosening is called ploughing. This is done using a plough, hoe and cultivators.
(b) Sowing
Sowing is the process of putting the seeds into the soil for growing crops. We need to use quality seeds for sowing. Sowing is done manually using mechanical equipment like Seed Drill. Seeds of few plants like rice are first grown in a separate area and then transplanted in the fields.
(c) Weeding
In a field many other undesirable plants may grow along with the crop. These undesirable plants are called weeds. Farmers use many ways to remove weeds. Methods to control weeds are: tilling before sowing of crops, physical removal of weeds by uprooting or cutting them close to the ground, using certain chemicals called weedicides etc.
(d) Threshing
Threshing is the process of separating grains or seeds from chaff. It is done after harvesting the crop. It is usually carried out with the help of a machine known as ‘Combine’. This machine is a combined harvester and thresher. It harvests plants as well as cleans grains.
(e) Irrigation abd their methods
The three main methods of irrigation are surface, sprinkler and drip/micro. Water flows over the soil by gravity for surface irrigation. Sprinkler irrigation applies water to soil by sprinkling or spraying water droplets from fixed or moving systems.
(f)
Continuous plantation of crops in a field makes the soil poor in certain nutrients such as nitrogen, phosphorus, potassium, etc. ... When a farmer continues to grow' crops one after the other, then all nutrients available in the soil reduce and the crop yield decreases automatically
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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.