DEFINE AND GIVE EXAMPLE OF EACH ONE –WEEDICIDE, PESTICIDE,INSECTICIDE ,FERTILISER ,KHARIF AND RABI CROPS
Answers
Answer:
this ia used in farming
Explanation:
1. We already know that:
All living organisms require food.
The energy from food is utilized by an organism for carrying out its various life processes such as digestion, respiration and excretion.
Plants can make their food themselves but animals including humans cannot.
We get food from plants or animals, or both.
2. Crop: When plants of the same kind are grown at a place in a regular manner on a large scale, it is called a crop.
3. In our country three categories of crops are grown:
Kharif Crops:The crops which are sown in the rainy season (i.e., from June to September) are called kharif crops. Paddy, maize, soyabean, groundnut, cotton etc., are kharif crops.
Rabi Crops:The crops grown in winter season (i.e., from October to March) are called rabi crops. Examples of rabi crops are wheat, gram, pea, mustard, linseed.
Zayed Crops (or Summer Crops):The crops grown in summer season are called zayed crops. Moong, muskmelon, watermelon, cucumber, gourd and bitter gourd are examples of zayed crops.
4. Cultivation of crops involved following activities:
Soil Preparation:It involves loosening and tilling of the soil (i.e., ploughing and watering).
Sowing:Sowing is the process of putting seeds in the soil
Adding Manure and Fertilisers:The substances, which are added to the soil in the form of nutrients to improve the production of the crops and the fertility of the soil are called manure and fertilisers.
Irrigation:Supply of water to crops at appropriate intervals is called irrigation.
Protection from Weeds:Needs are the unwanted plants that grows along with the crops. Its removals is must for the better growth of the crops.
Harvesting:The cutting of crop after it is mature is called harvesting.
Storage:If the crop grains are to be kept for longer time, they should be safe from moisture, insects and rats
5. Agricultural Practices:There are various activities that have to be performed, before sowing the seed and upto harvesting. These are called agricultural practice.
6. Fertilisers and Manure:The substance which are added to the soil in the form of nutrients for the improvement of crop production and the fertility of the soil are called fertilisers and manure.
7. Thrashing:The process of separation of grain from the chaff in the harvested plant is called thrashing.
8. Weeds:There are other undesirable or unwanted plants may grow naturally along with the crop, such plants are called weeds.
9. Weedicides:Those certain chemicals which are used to control weeds are called weedicide. For example: 2-4D (2-4-dichlorophenoxyacetic acid), metachlor.
10. Winnowing:A process, which do the separation of grain and chaff is called winnowing.
11. Humus:Humus is the top layer of the soil, i.e., formed by decaying or decomposition of organic matter like leaves or animal remains, dead organism, shed leaves or organism by the microorganism.
12. Pests:Pests are the insects or rodents that destroy much of our crop yield. Thus, it is necessary to save crops from pests.
Answer:
Weedicide : It is type of medicine used to remove weeds eg. 4-2D etc.
Kharif crop : paddy , maze
Rabi crop : Wheat , Pea , Gram
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