Podcast
Questions and Answers
What is manure obtained from?
What is manure obtained from?
- Factory production
- Decomposition of plant and animal waste (correct)
- Moong or gram seeds
- Forest plants and flowering plants
Why is it necessary to maintain an appropriate distance between seeds?
Why is it necessary to maintain an appropriate distance between seeds?
- To reduce soil fertility
- To encourage pest growth
- To promote fungal growth
- To avoid overcrowding (correct)
What is the purpose of adding manure to the soil?
What is the purpose of adding manure to the soil?
- To provide nutrients for plant growth (correct)
- To reduce soil fertility
- To reduce soil moisture
- To promote pest growth
What is vermicomposting?
What is vermicomposting?
What is the role of Rhizobium bacteria in leguminous plants?
What is the role of Rhizobium bacteria in leguminous plants?
What is the main difference between fertilisers and manure?
What is the main difference between fertilisers and manure?
What is manure obtained from?
What is manure obtained from?
What is a characteristic of fertilizers?
What is a characteristic of fertilizers?
What is an example of a fertiliser?
What is an example of a fertiliser?
What is the purpose of the activity of germinating seeds in different glasses?
What is the purpose of the activity of germinating seeds in different glasses?
What is an advantage of manure over fertilizers?
What is an advantage of manure over fertilizers?
What is crop production and management?
What is crop production and management?
What is the purpose of watering fields regularly?
What is the purpose of watering fields regularly?
What is the main difference between fertilizers and manure?
What is the main difference between fertilizers and manure?
Why are farmers encouraged to adopt the practice of growing seedlings with manure?
Why are farmers encouraged to adopt the practice of growing seedlings with manure?
What is the role of humus in the soil?
What is the role of humus in the soil?
Why is it essential to remove weeds before they produce flowers and seeds?
Why is it essential to remove weeds before they produce flowers and seeds?
What is the primary purpose of using weedicides?
What is the primary purpose of using weedicides?
Why should farmers use weedicides carefully?
Why should farmers use weedicides carefully?
What is the purpose of tilling the soil before sowing crops?
What is the purpose of tilling the soil before sowing crops?
What is the name of the tool used to uproot weeds manually?
What is the name of the tool used to uproot weeds manually?
What is the time period required for a cereal crop to mature?
What is the time period required for a cereal crop to mature?
What is harvesting in the context of agriculture?
What is harvesting in the context of agriculture?
What is the name of the chemical used to kill weeds?
What is the name of the chemical used to kill weeds?
What happens to the stubs left in the field after harvesting?
What happens to the stubs left in the field after harvesting?
Why should harvested grains be dried?
Why should harvested grains be dried?
What is the purpose of winnowing?
What is the purpose of winnowing?
Why does Paheli worry about the stubs?
Why does Paheli worry about the stubs?
Why are neem leaves used in storing wheat?
Why are neem leaves used in storing wheat?
What happens to freshly harvested grains if not dried?
What happens to freshly harvested grains if not dried?
What is the purpose of drying harvested grains?
What is the purpose of drying harvested grains?
Why is storage of grains important?
Why is storage of grains important?
What happens to the soil when excessive fertilizers are used?
What happens to the soil when excessive fertilizers are used?
What is the purpose of leaving the field uncultivated (fallow)?
What is the purpose of leaving the field uncultivated (fallow)?
What is the benefit of using manure in soil?
What is the benefit of using manure in soil?
What is the purpose of crop rotation?
What is the purpose of crop rotation?
What is the effect of fertilizers on water?
What is the effect of fertilizers on water?
What is the result of using excessive fertilizers?
What is the result of using excessive fertilizers?
What is the advantage of using organic manure?
What is the advantage of using organic manure?
What was the traditional practice of farmers in northern India?
What was the traditional practice of farmers in northern India?
Study Notes
Crop Production and Management
- Rhizobium bacteria are present in the nodules of leguminous plants and fix atmospheric nitrogen.
- Farmers are encouraged to adopt crop rotation to replenish soil with nutrients.
- Crop rotation involves growing different crops alternately, such as legumes and wheat.
Fertilisers and Manure
- Fertilisers are man-made inorganic salts rich in plant nutrients like nitrogen, phosphorus, and potassium.
- Examples of fertilisers are urea, ammonium sulphate, super phosphate, and NPK.
- Fertilisers are produced in factories and can make the soil less fertile if used excessively.
- Manure is a natural substance obtained from the decomposition of plant or animal waste.
- Manure provides humus to the soil, protects it from frost and hot air currents, and maintains soil moisture.
- Manure is an organic substance that is better than fertilisers.
Weeds and Their Control
- Weeds interfere with crop growth, may be poisonous, and can affect harvesting.
- Tilling before sowing helps in uprooting and killing weeds.
- Manual removal of weeds involves physical removal by uprooting or cutting them close to the ground.
- Weedicides, like 2,4-D, are chemicals used to control weeds without damaging crops.
Harvesting
- Harvesting is the process of cutting crops after they mature.
- Harvesting usually takes 3-4 months for a cereal crop to mature.
- Harvesting can be done manually or by machines.
Storage
- Storage of produce is an important task to keep grains safe from moisture, insects, rats, and microorganisms.
- Harvested grains have more moisture and need to be dried in the sun to reduce moisture before storing.
- Methods like winnowing and using dried neem leaves can help prevent spoilage and attack by insects and microorganisms.
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Description
Learn about the process of biological nitrogen fixation, its importance in soil replenishment, and how farmers can adopt this practice. Recall your previous knowledge about Rhizobium bacteria.
