Agricultural Practices and Food Production
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Agricultural Practices and Food Production

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Questions and Answers

What is the scattering of seeds in a field by hand known as?

  • Sowing
  • Drilling
  • Broadcasting (correct)
  • Spacing

    • Which agricultural practice involves sowing beans in fields after harvesting wheat?

  • Multiple cropping
  • Field fallow
  • Crop rotation (correct)
  • Mixed cropping

    • What contributes to increasing food production in agriculture?

  • Continuous research for sustainable development
  • All of these (correct)
  • Using more pesticides to control pests
  • Practicing efficient land management

    • Which statement is not true regarding chemical fertilizers?

    <p>They provide organic matter (humus) to the soil.</p> Signup and view all the answers

    Which method of cultivation is likely to cause salinization of soil?

    <p>Excessive irrigation</p> Signup and view all the answers

    What method can be used to select better and healthier seedlings for rice cultivation?

    <p>Transplantation</p> Signup and view all the answers

    What is one effective way to manage soil pollution?

    <p>Crop rotation</p> Signup and view all the answers

    Which of the following is not a benefit of crop rotation?

    <p>Ensures a stable yield every season</p> Signup and view all the answers

    Which of the following statements is not true about manure?

    <p>Manure specifically targets nutrient deficiencies in soil.</p> Signup and view all the answers

    What is a significant benefit of using a sprinkler irrigation system?

    <p>It prevents the fields from becoming waterlogged.</p> Signup and view all the answers

    Which of the following fertilizers contains both MCPA and dioxin?

    <p>Agent Orange</p> Signup and view all the answers

    What is the main purpose of ploughing soil?

    <p>To allow penetration of roots for better growth.</p> Signup and view all the answers

    What process involves removing chaff from grains?

    <p>Winnowing</p> Signup and view all the answers

    Which of the following is classified as a rabi crop?

    <p>Wheat</p> Signup and view all the answers

    Which of the following best describes the role of rodenticides?

    <p>Used to eliminate rodents</p> Signup and view all the answers

    What is green manure primarily composed of?

    <p>Decomposed green plants</p> Signup and view all the answers

    What is the primary benefit of using substances that are soluble in water for plants?

    <p>They are absorbed directly by plants and increase crop yields.</p> Signup and view all the answers

    What is the main characteristic of rice crops regarding irrigation?

    <p>They require more irrigation as they are kharif crops.</p> Signup and view all the answers

    Which chemical was contained in Agent Orange that posed health risks?

    <p>Dioxin.</p> Signup and view all the answers

    What do weeds compete with main crops for?

    <p>Sunlight and nutrients.</p> Signup and view all the answers

    What is the process of removing chaff from grains called?

    <p>Winnowing.</p> Signup and view all the answers

    What does buffer stock refer to?

    <p>Grains stocked for emergencies.</p> Signup and view all the answers

    What is green manure primarily grown for?

    <p>To add nutrients and organic matter to the soil.</p> Signup and view all the answers

    What is crop improvement characterized by?

    <p>Transferring and combining desirable plant traits.</p> Signup and view all the answers

    What type of crops are referred to as rabi crops?

    <p>Crops that are sown in October/November and harvested in March/April</p> Signup and view all the answers

    What is the main purpose of using fertilizers in agriculture?

    <p>To enhance soil fertility through inorganic salts</p> Signup and view all the answers

    Which of the following best describes biofertilizers?

    <p>Living microorganisms that increase soil fertility</p> Signup and view all the answers

    Which of the following statements about the hoe is true?

    <p>It can be used for ploughing and removing weeds</p> Signup and view all the answers

    What advantage does the sprinkler system of irrigation provide?

    <p>It allows control over the amount of water supplied to the soil</p> Signup and view all the answers

    What is the primary characteristic that differentiates manure from fertilizers?

    <p>Manure provides organic matter while fertilizers are inorganic salts</p> Signup and view all the answers

    How are seedlings prepared before transplantation in fields?

    <p>They are grown in nurseries before being transferred</p> Signup and view all the answers

    Which nutrients are fertilizers particularly rich in?

    <p>Nitrogen, phosphorous, and potassium</p> Signup and view all the answers

    Which sequence correctly orders the agricultural practices?

    <p>R, T, P, Q, S</p> Signup and view all the answers

    Which practices are included in an integrated cultivation system?

    <p>Breeding livestock on oil palm plantations and breeding small fish in paddy fields</p> Signup and view all the answers

    Which cultivation method is most likely to lead to soil fertility loss?

    <p>Excessive use of chemical fertilizers</p> Signup and view all the answers

    What is horticulture primarily concerned with?

    <p>Production of vegetables, fruits, and flowers</p> Signup and view all the answers

    To prevent seed-borne diseases, seeds must be:

    <p>Treated with fungicide solutions</p> Signup and view all the answers

    Which sequence reflects the correct agricultural procedure after tilling the land?

    <p>Levelling, sowing, manuring</p> Signup and view all the answers

    What is one consequence of shifting cultivation?

    <p>Potential loss of soil nutrients</p> Signup and view all the answers

    Which of the following options matches best with livestock breeding in agricultural systems?

    <p>Breeding on diversified crop fields</p> Signup and view all the answers

    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.

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