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← Index: Indian Soil, Crops and Irrigation One-LinersChapter 12
Study Guide · Chapter 12

Flash Check — 40 Questions

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  1. Name India's most extensive soil type by area, and the two sub-types it is divided into. — Alluvial soil, covering roughly 40% of India's area; divided into Bhangar (older, terrace-level) and Khadar (newer, floodplain) alluvium.
  2. Which soil type is famously "self-ploughing," and why? — Black/regur soil — it swells and cracks deeply on drying-and-wetting cycles due to its high clay content, aerating the subsoil naturally.
  3. What does the word "laterite" literally mean, and why? — From Latin "later," meaning brick — laterite soil hardens irreversibly on repeated wetting-drying cycles and has historically been cut and used as building brick.
  4. Which soil type is largely man-made, arising from excess canal irrigation without drainage? — Saline/Alkaline soil (usar/reh/kallar), caused by waterlogging and capillary salt rise.
  5. Which Kerala region is famous for peaty, below-sea-level rice cultivation? — Kuttanad.
  6. What do the words "Kharif" and "Rabi" literally mean, and which season does each refer to? — Kharif means "autumn" (monsoon-sown, autumn-harvested crop); Rabi means "spring" (winter-sown, spring-harvested crop).
  7. Name West Bengal's three rice crops in sowing-to-harvest order. — Aus, Aman, Boro.
  8. Which two Kharif crops are Tamil Nadu's regionally renamed rice crops tied to the northeast monsoon? — Kuruvai and Samba (also Thaladi and Navarai).
  9. Which state is currently India's largest rice producer (approx., recent years), and which state has the highest rice yield per hectare? — West Bengal largest producer (approx.); Punjab highest yield per hectare due to near-total irrigation.
  10. Name India's basmati rice belt, and what special trade designation it carries. — Punjab, Haryana, and western Uttar Pradesh; it carries a Geographical Indication (GI) tag.
  11. Which state is India's largest wheat producer, and which two states have the highest wheat yields? — Uttar Pradesh largest producer; Punjab and Haryana highest yields.
  12. Which two coarse cereals are the classic drought-tolerant crops of India's semi-arid tracts, and which is grown in both Kharif and Rabi seasons? — Jowar and Bajra; Jowar is grown in both seasons in parts of the Deccan.
  13. Which single state dominates India's gram (chickpea) output? — Madhya Pradesh.
  14. Name India's top two sugarcane-producing states (approx.), and which has the higher sugar recovery/output efficiency. — Uttar Pradesh (largest by cane tonnage) and Maharashtra (higher sugar recovery/efficiency).
  15. Which soil type best suits cotton, and why? — Black/regur soil — its high moisture retention lets cotton survive dry spells during its long growing and sunshine-dependent picking period.
  16. Which state overwhelmingly dominates India's jute production, and why is that region uniquely suited to it? — West Bengal — the Ganga-Brahmaputra delta provides fresh, flood-renewed alluvial soil plus the high rainfall and humidity jute requires.
  17. Which tea-growing region holds India's first-ever Geographical Indication tag, and in what year was it registered? — Darjeeling tea, registered 2004.
  18. Which state dominates Indian coffee production, and which two districts within it are most associated with it? — Karnataka; Kodagu (Coorg) and Chikmagalur.
  19. Which state overwhelmingly dominates natural rubber production, and what soil/climate condition makes it so narrowly concentrated? — Kerala; rubber needs a hot, consistently humid equatorial-type climate with no pronounced dry season, found in India almost only in Kerala.
  20. Name India's four major oilseeds covered in this book and one leading state for each. — Groundnut (Gujarat), Mustard/Rapeseed (Rajasthan), Soybean (Madhya Pradesh), Sunflower (Karnataka, historically).
  21. Which spice originally drew European trading powers to India's Malabar coast from the 15th century onward? — Black pepper.
  22. Name the three core inputs of the Green Revolution. — High-Yielding Variety (HYV) seeds, assured irrigation, and heavy chemical fertiliser/pesticide input.
  23. Which two individuals are most associated with the Green Revolution's HYV seed technology, one international and one Indian? — Norman Borlaug (international, Mexico-based wheat breeding) and M.S. Swaminathan (India, adaptation and championing domestically).
  24. Name three commonly cited criticisms of the Green Revolution. — Groundwater depletion, soil degradation/salinity, regional inequality, and loss of crop diversity (pulses/millets displaced) — any three.
  25. Name the four major irrigation systems of India and one state/region each is most associated with. — Canal (Punjab/Haryana), Well/tube-well (UP/Rajasthan), Tank (Tamil Nadu/Andhra Pradesh), Drip/sprinkler micro-irrigation (Maharashtra/AP).
  26. Which irrigation system is India's traditional Deccan-plateau method, and why does the hard-rock terrain suit it? — Tank irrigation — hard, impermeable crystalline rock makes canal-building and groundwater access difficult, so surface runoff is instead captured and stored in tanks.
  27. Name the river, and the states benefited, for the Bhakra-Nangal project. — Sutlej river; Punjab, Haryana, Rajasthan.
  28. Which river valley project is explicitly modelled on the American Tennessee Valley Authority, and what was it originally built to control? — Damodar Valley Corporation (1948); built primarily to control the Damodar's historic flooding ("river of sorrow" in Bengal).
  29. Which dam and canal system converted parts of the Thar desert into productive cropland, and from which two rivers does it draw water? — The Indira Gandhi Canal (Rajasthan Canal), drawing from the Sutlej-Beas system via the Harike Barrage.
  30. Name the five Agriculture Census landholding categories in order of size, and state which two categories together account for the large majority of India's operational holdings. — Marginal (below 1 ha), Small (1–2 ha), Semi-medium (2–4 ha), Medium (4–10 ha), Large (10+ ha); Marginal and Small holdings together account for the large majority.
  31. Which Soil Taxonomy order corresponds to India's black/regur soil, and which corresponds to the young alluvium of the Indo-Gangetic plain? — Vertisols (black/regur soil); Inceptisols (young Indo-Gangetic alluvium, the largest single Soil Taxonomy order by area).
  32. Name the three main mechanisms of soil erosion in India and one region associated with each. — Water erosion (Chambal ravines/gully erosion), wind erosion (Thar desert), and shifting/jhum cultivation (Northeastern hill states).
  33. Which mid-January festival cluster marks the Rabi/winter harvest across different regions of India, and name at least two festivals in it. — Makar Sankranti, Lohri, Pongal, and Bihu — any two — all celebrated within days of each other in mid-January.
  34. Which state is India's largest producer of potatoes, and which crop's cool-season, alluvial-soil profile does potato cultivation most resemble? — Uttar Pradesh; it resembles wheat's Rabi, cool-season, alluvial-soil profile.
  35. What is the ideal N:P:K fertiliser ratio recommended by agronomists, and why does actual consumption in the Green Revolution belt skew away from it? — Roughly 4:2:1; actual consumption skews nitrogen-heavy because urea (nitrogenous fertiliser) is priced much lower than phosphatic and potassic fertilisers under the subsidy structure.
  36. Name the two phases of India's Green Revolution and the crop each phase was primarily built around. — Phase I (mid-1960s–late 1970s, wheat) and Phase II (1980s onward, extended to rice and a wider set of states).
  37. What do the "White Revolution" and "Blue Revolution" refer to, and which scheme/leader is associated with each? — White Revolution — Operation Flood, milk/dairy cooperatives, led by Dr. Verghese Kurien. Blue Revolution — fisheries and aquaculture promotion, formalised under the Pradhan Mantri Matsya Sampada Yojana.
  38. Name PMKSY's four components. — Accelerated Irrigation Benefit Programme (AIBP), Har Khet Ko Pani, Per Drop More Crop, and Watershed Development.
  39. Which river-interlinking project became the first to receive formal Cabinet approval and begin construction? — The Ken-Betwa Link, connecting the Ken river (Madhya Pradesh) to the water-deficit Betwa basin.
  40. Why is the Periyar Dam considered unusual among Indian irrigation projects? — Though built on the Periyar river in Kerala, it diverts water eastward through a tunnel to irrigate Tamil Nadu's Vaigai basin — the state hosting the dam is not its primary irrigation beneficiary.

End of Book 13.

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