AGR 302: Rainfed Agriculture Overview
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Questions and Answers

What percentage of the country receives more than 1250 mm of annual rainfall?

  • 20% (correct)
  • 40%
  • 10%
  • 30%
  • How much rain water falls on agricultural land annually in India?

  • 186 M ha m
  • 24 M ha m
  • 400 M ha m
  • 160 M ha m (correct)
  • Which crop category is cultivated the most as rainfed despite irrigation development?

  • Cotton
  • Rice
  • Coarse cereals (correct)
  • Pulses
  • What is the approximate amount of rainwater available for harvesting in small scale water harvesting structures?

    <p>24 M ha m (C)</p> Signup and view all the answers

    What proportion of total food grain production does dry farming contribute?

    <p>40-42% (A)</p> Signup and view all the answers

    Which statement accurately reflects the resource management problems in irrigated regions?

    <p>Rainfed agriculture can help meet growing food needs (D)</p> Signup and view all the answers

    What is a significant concern for small and marginal farmers engaged in rainfed farming?

    <p>Risk aversion (B)</p> Signup and view all the answers

    What percentage of the livestock population is supported by dry land agriculture?

    <p>Two-thirds (D)</p> Signup and view all the answers

    What is the primary agricultural system that supports over 800 million inhabitants in the Semi Arid Tropics?

    <p>Dry land agriculture (B)</p> Signup and view all the answers

    Which crop contributes to more than 50% of the groundnut production in dry land agriculture?

    <p>Groundnut (B)</p> Signup and view all the answers

    What percentage of the world's agricultural lands is occupied by rainfed farming systems?

    <p>80% (D)</p> Signup and view all the answers

    In which region does the highest percentage of farm land rely on rainfed agriculture?

    <p>Sub-Saharan Africa (B)</p> Signup and view all the answers

    For how many months does rainfall generally exceed evapotranspiration in dry semi-arid regions?

    <p>2 to 4.5 months (B)</p> Signup and view all the answers

    What percentage of pulses is produced by farmers in dry land regions?

    <p>93% (B)</p> Signup and view all the answers

    Which area has the lowest percentage of agricultural land classified as rainfed?

    <p>South Asia (A)</p> Signup and view all the answers

    What is a consequence of low rainfall in dry land agriculture?

    <p>Decreased crop yields (D)</p> Signup and view all the answers

    What type of climate is associated with Sholapur in Maharashtra?

    <p>Semi arid (D)</p> Signup and view all the answers

    Which crops are primarily grown in Indore, Madhya Pradesh?

    <p>Maize and gram (D)</p> Signup and view all the answers

    Which of the following regions has the highest average rainfall according to the content?

    <p>Rewa (C)</p> Signup and view all the answers

    What crop combination is mentioned for Bijapur in Karnataka?

    <p>Groundnut and pearl millet (C)</p> Signup and view all the answers

    Which of the following statements correctly reflects the agricultural patterns in Ahmednagar and Nasik?

    <p>They focus on a variety of pulses and grains. (A)</p> Signup and view all the answers

    What is the secondary crop mentioned for the Rewa region?

    <p>Redgram (A)</p> Signup and view all the answers

    What type of soil is found in Solapur, Maharashtra?

    <p>Black (B)</p> Signup and view all the answers

    Which crop is predominantly intercropped with groundnut in the Bijapur region?

    <p>Safflower (C)</p> Signup and view all the answers

    Which state has the largest area under arid tropics in India?

    <p>Rajasthan (D)</p> Signup and view all the answers

    What is the total area under semiarid regions in India?

    <p>956,750 sq km (A)</p> Signup and view all the answers

    Which of the following states is NOT mentioned as having arid tropics?

    <p>Tamil Nadu (B)</p> Signup and view all the answers

    Which state has the second-largest area under semiarid tropics?

    <p>Andhra Pradesh (B)</p> Signup and view all the answers

    What is the area (in sq km) of the semiarid region in Maharashtra?

    <p>189,580 (C)</p> Signup and view all the answers

    Which region has the smallest area under arid temperate in India?

    <p>Jammu and Kashmir (A)</p> Signup and view all the answers

    Which Indian state has the highest percentage of total area classified as arid?

    <p>Rajasthan (A)</p> Signup and view all the answers

    Which state has an area of 64,230 sq km classified as semiarid?

    <p>Uttar Pradesh (A)</p> Signup and view all the answers

    What is the primary significance of dry land agriculture in India?

    <p>It helps in food, fodder, fuel, and fibre production. (C)</p> Signup and view all the answers

    What is a major constraint for crop production in dry lands?

    <p>Erratic and uneven rainfall distribution. (B)</p> Signup and view all the answers

    What percentage of total food grain production does dry land contribute to in India?

    <p>42% (B)</p> Signup and view all the answers

    Which of the following aspects does not relate to the conditions of dry land farming?

    <p>High productivity under irrigated conditions. (C)</p> Signup and view all the answers

    What is a potential future trend regarding the reliance on dry farming?

    <p>Increased reliance on dry farming due to declining irrigated productivity. (A)</p> Signup and view all the answers

    Which statement best describes dry land farming?

    <p>It is characterized by minimal and unpredictable rainfall. (D)</p> Signup and view all the answers

    In terms of food production, what role is expected from scientists and policymakers regarding dry land agriculture?

    <p>To enhance efforts in improving dry land productivity. (B)</p> Signup and view all the answers

    What does the term 'drought' refer to in the context of agriculture?

    <p>A prolonged period of abnormally low rainfall leading to crop failures. (A)</p> Signup and view all the answers

    What is one key benefit of intercropping?

    <p>Improved soil fertility with legumes (C)</p> Signup and view all the answers

    How does intercropping help with pest control?

    <p>Some intercrop combinations provide biological control. (B)</p> Signup and view all the answers

    Which of the following is NOT a strategy for successful intercropping?

    <p>Choosing component crops with similar rooting patterns (A)</p> Signup and view all the answers

    What does intercropping primarily aim to achieve in terms of yield?

    <p>Higher yield and income per unit area per unit time (C)</p> Signup and view all the answers

    What is one approach to maximize the benefits of intercropping?

    <p>Selecting components with complementary growth habits (C)</p> Signup and view all the answers

    Which aspect of resource use efficiency does intercropping improve?

    <p>Water, nutrients, and light utilization (B)</p> Signup and view all the answers

    Intercropping can be most beneficial in which type of farming?

    <p>Dry farming (C)</p> Signup and view all the answers

    Which of the following is NOT a consequence of intercropping?

    <p>Diminished crop diversity (B)</p> Signup and view all the answers

    Study Notes

    AGR 302: Rainfed Agriculture and Watershed Management (1+1)

    • Lec. No. 1: Dry farming in India, significance and scope, history of dry land agriculture. Dryland agriculture is crucial for India for food, fodder, fuel, and fiber production,
    • Lec. No. 2: Dry farming and rainfed farming: definitions, characteristics, and distinctions . Arid regions have less than 750mm annual rainfall; dryland farming has 75-120 growing days and requires moisture conservation practices; and rainfed farming has more than 1150mm rainfall and more than 120 growing days, focusing on water disposal.
    • Lec. No. 3: Distribution of arid and semi-arid regions globally, in India, and Tamil Nadu. Arid regions are categorized by their thermal and moisture regimes (tropical or temperate). In India, arid regions include portions of Rajasthan, Gujarat, and parts of other states; semi-arid regions are characterized by alternating wet and dry seasons, with varying levels of rainfall.
    • Lec. No. 4: Major crops of dry lands in India and Tamil Nadu. Important crops grown in dryland areas include sorghum, pearl millet, finger millet (millets), mustards, rapeseed, groundnut, pigeon pea, gram, and lentils (oilseeds and pulses).
    • Lec. No. 5: Characteristics of dry land farming and major constraints for crop production. Constraints include vagaries of monsoon (variable rainfall, late and early withdrawal, and prolonged dry spells), high atmospheric temperatures, low humidity high evaporation, various soil properties (shallow, alkaline, and degraded soils), and socioeconomic factors (small and marginal farmers, low capital, and lack of access to resources).
    • Lec. No. 6: Drought definition, classification, and effect on crops. Drought is defined by various factors including intensity and duration (permanent, seasonal, contingent). Different classifications (meteorological, agricultural, hydrological) exist. Drought has significant negative impacts on crop production due to water stress at different crop growth stages.
    • Lec. No. 7: Drought management strategies and contingency crop planning & mid-season correction. Contingency planning is crucial. Management tools include appropriate crop selection, timely sowing, water conservation. techniques, and mid-season adjustments in response to drought conditions.
    • Lec. No. 8: Mulching, anti-transpirants, in-situ soil moisture conservation techniques and approaches. Soil moisture conservation techniques include mulching, anti-transpirants, and in-situ soil moisture conservation techniques that can help to increase water availability in the soil. These approaches are necessary to improve crop yields in dry land agriculture.

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    Description

    This quiz covers essential concepts in rainfed agriculture and watershed management, focusing on dry farming practices in India. It addresses definitions, characteristics, and the importance of dryland agriculture, along with global and regional distributions of arid and semi-arid regions. Test your knowledge on moisture conservation and farming techniques critical for food production.

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