Answer the following questions in short:
1) What do you understand by term agriculture?
2) What are the advantages of levelling?
3) Explain the term transplantation.
4) What do you mean by the term crop? Explain briefly the types of crops.
5) What do you mean by weeding? Why the process of weeding necessary? Name the
methods applied for weeding.
6) How can nitrogen be replenished in soil naturally?
Answers
Answer:
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1. Agriculture is the practice of cultivating plants and livestock. Agriculture was the key development in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that enabled people to live in cities.
2. In summary, the main benefits of levelling are:
•improved crop establishment
•even water coverage of the field,
•even crop stand and maturation,
•reduction of weeds by up to 40 % (thereby a 75 %
decrease of labour required for weeding)
•increase of farming area by 5-7 %,
•reduction of farm operation times by 10-15 %,
3. At first plants like tomato , chilly, brinjal etc are planted in a small area like nursery later on when seedlings are formed they are planted in large forms called transplantation
4. A crop is a plant or plant product that can be grown and harvested for profit or subsistence. By use, crops fall into six categories: food crops, feed crops, fiber crops, oil crops, ornamental crops, and industrial crops.
5. Weeds are unwantedvplants which grown along the useful crops. Weeding is required because weeds are competitive plants as they reduce the useful crop yield by acquiring space, fertilizers and nutrients from the soil. Explanation: methods include pulling, digging, disking, plowing and mowing.
6. Nitrogen Can be Replenished in the Soil by Growing Leguminous Crops.The remaining nitrogen compounds made by Rhizobium bacteria mix with the soil in the field and enrich it. Thus, the soil in the fields gets enriched with nitrogen compounds in the natural way.
Explanation:
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