General agriculture pointer - 59

1. Most prominent primary mineral in sandy soil – (quartz)

2. Plasticity is a property of – (heavy soil)

3. Soils dominated by – (sand separates) are called light soils

4. Highest limit of soil particle size – (2 millimeter)

5. Clay particle diameter – (less than 0.002 millimeter)

6. Arrangement of soil particles into aggregates – (soil structure)

7. Soil structure and soil texture are – (physical properties)

8. Father of modern pedology – (vasily dokuchaev)

9. Example of metamorphic rock – (slate)

10. Organic colloid of soil – (humus)

11. Land area represented by one soil profile – (pedon)

12. Inorganic colloid of soil – (clay minerals)

13. Organic matter volume in typical soil – (5%)

14. Marble formed from – (limestone)

15. Granite & basalt are – (igneous rocks)

16. B2 horizon is – (illuvial zone / zone of deposition)

17. A2 horizon is – (eluvial zone / zone of leaching)

18. Litter layer in soil profile – (A00 or O1)

19. A3, B1 & B3 horizons known as – (transitional layers)

20. C horizon represents – (parent material)

21. A & B horizons together – (solum)

22. Vertical section to bedrock – (soil profile)

23. Metamorphic rock formed from limestone – (marble)

24. Example of acidic igneous rock – (granite)

25. Example of secondary clay mineral – (montmorillonite/illite/calcite)

26. Example of primary clay mineral – (quartz/feldspar/mica)

27. Volume % of soil air – (25%)

28. Volume % of soil water – (25%)

29. Study of soil taxonomy – (pedology)

30. Study of soil nutrients – (edaphology)

31. Three main rock types – (igneous, sedimentary & metamorphic)

32. Disintegration & decomposition of rocks – (weathering)

33. Unconsolidated material above bedrock – (regolith)

34. Relative proportions of soil separates – (soil texture)

35. Main soil separates – (sand, silt & clay)

36. Size range 0.05–2 mm – (sand)

37. Size range 0.002–0.05 mm – (silt)

38. Size <0.002 mm – (clay)

39. Sandy soils contain ≥ – (70% sand)

40. Silty soils contain ≥ – (80% silt)

41. Clayey soils contain ≥ – (35% clay)

42. Soil with equal sand, silt & clay – (loam soil)

43. Dark soil colour indicates – (decomposing organic matter)

44. Ideal structure & texture – (crumb & loamy)

45. pH scale formulated by – (sorenson)

46. Alkaline soils have more – (OH– ions) & less (H+ ions)

47. Acidic soils have more – (H+ ions) & less (OH– ions)

48. Soils of kerala are mainly – (acidic)

49. Soils of kerala have – (low CEC)

50. Soils of kerala have – (low water holding capacity)

51. Type of soil in southern thiruvananthapuram – (red loam)

52. Red loam colour due to – (haematite)

53. Soil covering 65% of kerala – (laterite)

54. Developed from recent marine deposits – (coastal alluvium)

55. Soil along river banks – (riverine alluvium)

56. Onattukara alluvium in taluks – (karthikapally, mavelikkara, karunagappally)

57. Onattukara alluvium is – (marine deposits)

58. Soil in valley bottoms due to sedimentation – (brown hydromorphic)

59. Kuttanad soils grouped into – (kayal soil, karappadam soil & kari soil)

60. Kayal soils rich in calcium due to – (lime shells)

61. Major soil of kuttanad – (karappadam soils)

62. Kari soils developed from – (undecomposed plant remains)

63. Natural but slow erosion – (geologic erosion)

64. Erosion due to human activity – (accelerated erosion)

65. Water erosion types – (splash/sheet/rill/gully erosion)

66. Wind erosion types – (saltation/suspension/surface creep)

67. Agronomic soil & water conservation – (mulching/contour farming/strip cropping/alley cropping/mixed cropping/cover cropping)

68. Engineering (mechanical) conservation – (basin listing/subsoiling/contour bunding/bench terracing/soak pits/check dams/gabions)

69. Physical hydrological unit draining to a common outlet – (watershed)

70. Macro-watershed area – (50,000 ha or more)

71. Sub-watershed area – (10,000–50,000 ha)

72. Milli-watershed area – (1000–10,000 ha)

73. Micro-watershed area – (100–1000 ha)

74. Mini-watershed area – (up to 100 ha)

75. Soil with pH 4.7 is – (acidic)

76. Black cotton soil in chittur, palakkad is – (alkaline)

77. Most serious water erosion – (gully erosion)

78. Most common water erosion – (splash erosion)

79. Erosion permitting crop – (sorghum/maize/tapioca)

80. Erosion resisting crop – (groundnut/horsegram)

81. In acid soils, acidity reduced by – (lime)

82. Centre of origin of cucumber – (india)

83. Recommended snakegourd spacing – (2 × 2 m)

84. Cucurbit used in confectionery – (ashgourd)

85. Most serious cucurbit pest in kerala – (fruit fly)

86. ‘Pusa summer prolific long’ variety of – (bottlegourd)

87. ‘Sugar baby’ is a variety of – (watermelon)

88. Centre of origin of brinjal – (india)

89. Fertilizer recommendation for tomato in kerala – (75:40:25 kg NPK/ha)

90. Single seeded cucurbit – (chow-chow)

91. Cool season vegetables grown profitably in – (vattavada, idukki)

92. No.1 vegetable crop globally – (potato)

93. Shade tolerant vegetable – (colocasia)

94. Vegetables of indian origin – (brinjal & snakegourd)

95. Bacterial wilt of brinjal caused by – (ralstonia solanacearum)

96. ‘Little leaf’ of brinjal caused by – (phytoplasma)

97. Perennial cucurbit – (coccinia – koval)

98. Shade-loving leafy vegetable – (water leaf)

99. Cucurbits used for diabetes – (bittergourd & coccinia)

100. Indian institute of vegetable research located at – (varanasi, uttar pradesh)