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Questions and Answers

What is the primary focus of horticulture?

  • Cultivation of large trees
  • Cultivation of flowers and fruits (correct)
  • Management of soil and crops
  • Production of livestock

    • Which of the following best describes agronomy?

  • The principles of crop production and soil management (correct)
  • The cultivation of marine life
  • The management of perennial trees
  • The science of animal husbandry

    • Animal husbandry primarily aims to achieve what?

  • Enhance the quality of timber and wood
  • Obtain maximum output from livestock (correct)
  • Maximize production of fruits and vegetables
  • Improve soil health for crop yield

    • What role does agricultural engineering play in agriculture?

    <p>Develops tools to improve crop production and husbandry</p> Signup and view all the answers

    Which of the following is NOT a focus area of fishery science?

    <p>Cattle breeding</p> Signup and view all the answers

    What is a significant aspect of agronomy's scope?

    <p>Constant modification and development of agricultural practices</p> Signup and view all the answers

    Home science primarily focuses on what aspect of agriculture?

    <p>Better utilization of agricultural produces</p> Signup and view all the answers

    Which definition fits an agronomist's role?

    <p>A specialist studying crop production and soil management</p> Signup and view all the answers

    What is one of the primary objectives of tillage?

    <p>To produce a satisfactory seedbed</p> Signup and view all the answers

    Which type of tillage is performed after sowing the crop?

    <p>Secondary tillage</p> Signup and view all the answers

    What is the purpose of incorporating fertilizers during tillage?

    <p>To provide nutrients for plant growth</p> Signup and view all the answers

    Which practice is NOT a benefit of tillage?

    <p>Habitat for pests</p> Signup and view all the answers

    What is the main difference between primary and secondary tillage?

    <p>Primary tillage is deeper than secondary tillage</p> Signup and view all the answers

    Which activity is considered preparatory tillage?

    <p>Harrowing before planting</p> Signup and view all the answers

    Which of the following is NOT listed as an objective of tillage?

    <p>Provide shade for seedlings</p> Signup and view all the answers

    What does breaking hard pans in the soil help achieve?

    <p>Enhancing root penetration</p> Signup and view all the answers

    What is one of the primary benefits of using leguminous plants like sunhemp as green manure crops?

    <p>They add nitrogen to the soil.</p> Signup and view all the answers

    Which of the following is a limitation of green manuring?

    <p>Can increase the problem of termites.</p> Signup and view all the answers

    What characteristic is NOT ideal for a green manure crop?

    <p>It has a slow initial growth.</p> Signup and view all the answers

    Why might green manuring not be economical for wheat cultivation during the kharif season?

    <p>It can lead to loss of kharif crops.</p> Signup and view all the answers

    Which of the following actions can help in the reclamation of saline and alkaline soils through green manuring?

    <p>Releasing organic acids.</p> Signup and view all the answers

    What is the primary advantage of using green manure in cropping systems?

    <p>It helps maintain soil's organic matter status.</p> Signup and view all the answers

    Which of the following contains the highest percentage of nitrogen (N)?

    <p>Night soil</p> Signup and view all the answers

    What is compost primarily made from?

    <p>Rotted organic matter from waste</p> Signup and view all the answers

    How are green manure crops typically utilized in fields?

    <p>Incorporated into the soil while still green.</p> Signup and view all the answers

    Which of the following manures provides the least phosphorus (P2O5)?

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

    What is the main component of vermicompost?

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

    Which statement about sewage and sludge is accurate?

    <p>Sludge is the solid portion of sewage.</p> Signup and view all the answers

    What is the typical nitrogen content of farmyard manure?

    <p>0.5%</p> Signup and view all the answers

    What impact does delayed sowing have on the yield of crops?

    <p>It reduces the yield due to early induction of flowering.</p> Signup and view all the answers

    When is the optimum time for sowing most tropical crops?

    <p>June or July</p> Signup and view all the answers

    Which method of sowing uses dry soil before the anticipated rains?

    <p>Dry sowing</p> Signup and view all the answers

    What is a significant consequence of late sowing in crops?

    <p>Heightened susceptibility to pests and diseases</p> Signup and view all the answers

    What is the minimum amount of rainfall necessary for wet sowing to take place?

    <p>20 mm</p> Signup and view all the answers

    Which factor is NOT associated with reducing yields in delayed sowing?

    <p>Beneficial impacts of late sowing</p> Signup and view all the answers

    For temperate crops such as wheat and barley, when is the optimum sowing period?

    <p>Last week of October to first week of November</p> Signup and view all the answers

    What is the primary purpose of broadcasting as a sowing method?

    <p>To evenly distribute seeds across the field</p> Signup and view all the answers

    What is the primary purpose of tillage in agriculture?

    <p>To mechanically manipulate soil for seed germination and plant growth</p> Signup and view all the answers

    What problem can arise from big irrigation projects?

    <p>Water logging and salinity</p> Signup and view all the answers

    What is defined as 'tilth' in the context of tillage?

    <p>The physical condition of soil achieved through tillage</p> Signup and view all the answers

    What does the term 'no tillage practices' refer to?

    <p>Methods that eliminate clean cultivation due to energy costs</p> Signup and view all the answers

    What can contribute to soil compaction after crop harvest?

    <p>Beating action of rain, drying irrigation, and movement of implements</p> Signup and view all the answers

    Why is intensive cropping becoming more popular?

    <p>To grow more crops on static land due to population pressure</p> Signup and view all the answers

    What does Jethro Tull emphasize as necessary for effective tillage?

    <p>Thorough ploughing to create fine soil particles</p> Signup and view all the answers

    What is required to exploit the full yielding potential of new high-yield crop varieties?

    <p>Development of a package of agricultural practices</p> Signup and view all the answers

    Study Notes

    Agronomy

    • Agronomy is a specialized branch of agriculture dealing with crop production and soil management.
    • It is defined as the science and art of cultivating land, raising crops, and feeding livestock.
    • It is about the cultivation of lands for the production of crops for a regular supply of food and other needs for progress of the nation.

    Subtopics

    • Agriculture: Definition, meaning, and spheres of agriculture as well as revolutions in agriculture.
    • Agronomy: Definition, meaning, and scope of agronomy.
    • Seeds and sowing: Definition and character of good seeds, classes of seeds, and methods of sowing.
    • Tillage, land configuration, and sub-soiling: Definition, objectives, classification of tillage; modern concepts in tillage, land configuration techniques, sub-soiling meaning and equipment.
    • Crop density and geometry: Types of crop geometry and factors affecting plant density.
    • Crop nutrition: Macro and micro nutrients, criteria for essentiality of nutrients, manures/compost and fertilizers, nutrient use efficiency, growth and development of crops.
    • Agro-climatic zones of India and Gujarat: Agro-climatic zones of India and Gujarat.
    • Classification of field crops: Classification of field crops (cereals, pulses, fruits, vegetables, etc.) based on usage, other criteria (e.g. reproduction), and types of crops (based on duration).
    • Drought: Definition, types of drought, effect on crop, management of drought.
    • Cropping systems: Definitions, types of cropping systems, soil fertility and soil productivity, fertility losses, and soil organic matter.
    • Irrigation: Definition, importance, role of water in plants, physical and biological classification of water, irrigation efficiency, water use efficiency, methods, and approaches for irrigation scheduling.
    • Quality of Water: Total salt concentration, Alkali hazards, Bicarbonate concentration (RSC hazard), Boron hazard, other hazards, including toxic effects.
    • Water logging: Causes, impacts, and measures to control waterlogging.
    • Seeds and sowing: Definition, characters of good seeds, quality of seed, and types of seeds. 
    • Weed: Definition, classification, characteristics, and types of weeds (based on morphology, life cycle, origin, association, and habitat).

    Practices

    • The text describes various practical methods related to identification of crops, seeds, fertilizers, pesticides, tillage implements, and different methods of sowing. 

    Credits

    • The total number of credits associated with this particular course.

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