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Questions and Answers
What is the scattering of seeds in a field by hand known as?
What is the scattering of seeds in a field by hand known as?
Which agricultural practice involves sowing beans in fields after harvesting wheat?
Which agricultural practice involves sowing beans in fields after harvesting wheat?
What contributes to increasing food production in agriculture?
What contributes to increasing food production in agriculture?
Which statement is not true regarding chemical fertilizers?
Which statement is not true regarding chemical fertilizers?
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Which method of cultivation is likely to cause salinization of soil?
Which method of cultivation is likely to cause salinization of soil?
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What method can be used to select better and healthier seedlings for rice cultivation?
What method can be used to select better and healthier seedlings for rice cultivation?
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What is one effective way to manage soil pollution?
What is one effective way to manage soil pollution?
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Which of the following is not a benefit of crop rotation?
Which of the following is not a benefit of crop rotation?
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Which of the following statements is not true about manure?
Which of the following statements is not true about manure?
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What is a significant benefit of using a sprinkler irrigation system?
What is a significant benefit of using a sprinkler irrigation system?
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Which of the following fertilizers contains both MCPA and dioxin?
Which of the following fertilizers contains both MCPA and dioxin?
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What is the main purpose of ploughing soil?
What is the main purpose of ploughing soil?
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What process involves removing chaff from grains?
What process involves removing chaff from grains?
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Which of the following is classified as a rabi crop?
Which of the following is classified as a rabi crop?
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Which of the following best describes the role of rodenticides?
Which of the following best describes the role of rodenticides?
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What is green manure primarily composed of?
What is green manure primarily composed of?
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What is the primary benefit of using substances that are soluble in water for plants?
What is the primary benefit of using substances that are soluble in water for plants?
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What is the main characteristic of rice crops regarding irrigation?
What is the main characteristic of rice crops regarding irrigation?
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Which chemical was contained in Agent Orange that posed health risks?
Which chemical was contained in Agent Orange that posed health risks?
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What do weeds compete with main crops for?
What do weeds compete with main crops for?
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What is the process of removing chaff from grains called?
What is the process of removing chaff from grains called?
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What does buffer stock refer to?
What does buffer stock refer to?
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What is green manure primarily grown for?
What is green manure primarily grown for?
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What is crop improvement characterized by?
What is crop improvement characterized by?
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What type of crops are referred to as rabi crops?
What type of crops are referred to as rabi crops?
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What is the main purpose of using fertilizers in agriculture?
What is the main purpose of using fertilizers in agriculture?
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Which of the following best describes biofertilizers?
Which of the following best describes biofertilizers?
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Which of the following statements about the hoe is true?
Which of the following statements about the hoe is true?
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What advantage does the sprinkler system of irrigation provide?
What advantage does the sprinkler system of irrigation provide?
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What is the primary characteristic that differentiates manure from fertilizers?
What is the primary characteristic that differentiates manure from fertilizers?
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How are seedlings prepared before transplantation in fields?
How are seedlings prepared before transplantation in fields?
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Which nutrients are fertilizers particularly rich in?
Which nutrients are fertilizers particularly rich in?
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Which sequence correctly orders the agricultural practices?
Which sequence correctly orders the agricultural practices?
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Which practices are included in an integrated cultivation system?
Which practices are included in an integrated cultivation system?
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Which cultivation method is most likely to lead to soil fertility loss?
Which cultivation method is most likely to lead to soil fertility loss?
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What is horticulture primarily concerned with?
What is horticulture primarily concerned with?
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To prevent seed-borne diseases, seeds must be:
To prevent seed-borne diseases, seeds must be:
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Which sequence reflects the correct agricultural procedure after tilling the land?
Which sequence reflects the correct agricultural procedure after tilling the land?
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What is one consequence of shifting cultivation?
What is one consequence of shifting cultivation?
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Which of the following options matches best with livestock breeding in agricultural systems?
Which of the following options matches best with livestock breeding in agricultural systems?
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Study Notes
Agricultural Practices
- Scattering seeds by hand is called broadcasting
- Ploughing loosens the soil, helps roots penetrate, aids aeration, and eradicates weeds
- Levelling ensures even distribution of water and fertilizer
- Irrigation provides water to crops
- Sowing is planting seeds in the field, and Transplanting is moving seedlings from nurseries to the field
- Crop rotation involves alternating different crops each season to improve soil health and reduce pollution.
- Manuring involves adding organic matter to the soil to improve fertility
- Drilling sows seeds in rows, helps improve spacing and growth
- Weeding removes unwanted plants that compete with crops
Increasing Food Production
- Efficient land management is crucial for increasing food production
- Continuous research helps to ensure sustainable development
- Optimum use of land for agriculture is key to meeting the food demands of a growing population
- Pesticides are used to control pests and can increase yields but should be used responsibly
- Synthetic hormones can be used to increase plant growth and yields but can have negative environmental impacts
- Educating and guiding consumers on sustainable food practices can help ensure food security
Crop Improvement Methods
- Crop rotation helps maintain soil fertility and reduce pollution.
- Multiple cropping involves growing two or more crops in the same field throughout the year.
- Mixed cropping involves growing two or more crops simultaneously.
- Field fallow involves leaving the land uncropped for a period to allow soil recovery
- Transplanting involves moving seedlings from nurseries to the field, a method used for rice cultivation
- Selection involves identifying and choosing desired traits in crops
- Multiplication involves increasing the number of plants with desirable traits
- Development of gene variation involves using breeding techniques to introduce new traits to crops
Fertilizers and Soil Health
- Manure provides organic matter (humus) to soil but is not nutrient specific and is absorbed slowly
- Fertilizers are inorganic salts, readily soluble in water, and provide specific nutrients to the soil
- Overuse of chemical fertilizers can harm soil health, causing pollution and nutrient imbalances.
- Biofertilizers are living microorganisms that enhance soil fertility. They are environmentally friendly and improve soil health.
- Green manure is a type of crop that is grown and then ploughed back into the soil to enrich it.
Other Important Terms
- Rabi crops are sown in winter and harvested in spring (e.g., wheat, peas, mustard)
- Kharif crops are sown in summer and harvested in autumn (e.g., rice, maize)
- Sprinkler systems control water supply and are particularly useful for sandy soils
- Winnowing is the process of separating chaff (light debris) from grains by using wind
- Buffer stock is a reserve of food grains maintained to ensure food security during shortages
- Rodenticides are chemicals used to kill rats
- Agent Orange is a herbicide that contains 2, 4, 5-T and dioxin, which are highly carcinogenic
- Horticulture is the science and art of growing vegetables, fruits, and flowers
- Weedicides are used to control weeds in crops
- Seed-borne diseases are diseases that are transmitted through seeds. Treating seeds with fungicide can help prevent these diseases.
- Kalyan Sona is a high-yielding variety of wheat
Agricultural Practices in Sequence
- The correct order of agricultural practices is: ploughing, levelling, sowing, manuring, irrigation, and harvesting.
Integrated Cultivation System
- Integrated cultivation system involves integrating various agricultural practices to create a more sustainable and balanced farming system.
- Examples include:
- Breeding livestock on oil palm plantations (i)
- Breeding small fish in paddy fields (ii)
- Planting various crops in a small area (iii)
- Using mixed cropping and crop rotation techniques
Soil Fertility and Loss
- Shifting cultivation involves rotating crops, but it can lead to soil fertility loss if the land isn't allowed sufficient time to recover.
- Excessive use of chemical fertilizers depletes soil nutrients and degrades soil health.
Crop Improvement
- Crop Improvement encompasses methods of selecting, transferring, and combining desirable traits in crops for improved yields and quality.
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Description
Explore essential agricultural practices such as broadcasting, ploughing, and irrigation that contribute to efficient food production. This quiz covers techniques like crop rotation, manuring, and weeding that enhance soil health and manage land effectively to meet increasing food demands.
