Important Points of Agronomy for Competitive Exam

Important Points of Agronomy

Important Points of Agronomy

1. Mycorrhiza is a symbiotic association between Fungus & roots of higher plants

2. VAM: Vascular Arboscular Mycorrhyza is used as: P solubilizing in plant roots

3. Cereals are deficient in which amino acid: Lysine

4. Amino acid which is deficient in legumes: Methionine

5. Power tiller is most suitable for the cultivation of: Paddy

6. Ammonium polyphosphate contains: 15% N & 62 % P205.

7. Tz (tetrazolium) test is done for: Viability of seeds.

8. In wet nursery of rice, level of water is maintained: 5 cm

9. The optimum depth of puddling in rice is: 5 cm

10. Ultra violet radiations are absorbed by: Ozone layer

11. First Indian director of IARI was: Dr. B. Vishvanath.

12. The most critical stage of irrigation in wheat is: CRI stage (21 days after sowing)

13. Jhuming is a practice of rice cultivation in: Eastern part of India.

14. Basic object of sustainable agriculture is: To maintain ecological balance

15. The plants growing in salt water are known as: Halophytes

16. Crop canopy temperature is measured by: Infra-red thermometer.

17. Reclamation disease is due to deficiency of: Copper

18. Hormone related to drought tolerance is: Abscisic acid

19. Contribution of livestock in agriculture is 29.7 %

20. Hormone used as an herbicide: 2, 4-D (>20 PPM)

21. Element available in both anion and cation is: Nitrogen (IARI, Ph.D11)

22. Dormancy breaking hormone is: Gibrellic acid

23. Ring worm disease is caused by: Fungus.

24. Monsoon is responsible to cause rainfall in Tamil Nadu: North East monsoon

25. Stress hardening in plants can be achieved by: ABA.

26. Maximum permissible limit of biuret in urea is 1.5%.

27. Carbon content in organic matter 58%

28. Bio fertilizer used in wheat is: Azatobacter.

29. Bio fertilizer used in sorghum and grasses is Azospirillum

30. Vertical mulch is used in which type of soils Black cotton soils.

31. Criteria of essentiality were given by: Arnon & Stout, 1939.

32. The optimum spacing for wheat is: 22.5 cm(line to line)

33. The nontraditional area for cultivating is: Eastern India.

34. Major P fertilizer commonly used in India is: DAP

35. State having minimum BPL population is: Punjab

36. Maximum number of BPL people are in: Bihar

37. Bio fertilizer more suited for sugarcane is: Azatobacter

38. Depth of sowing of soybean seed: 3 cm

39. First variety of rice introduced in India is: TN-I (1964-65)

40. Indian mustard is known as: Brassica juncea.

41. Explosive fertilizer is: Ammonium nitrate.

42. Most prominent soil group of India: Alluvial soil.

43. In SSP sulphur contains: 12 %.

44. Which micro nutrient deficient in Indian soils: Zn

45. Which macro nutrient mostly deficient in Indian soils Nitrogen

46. Spike tooth harrow is a type of implement: Secondary tillage

47. Most widely used material for correcting soil acidity is: Lime.

48. Diara cultivation method is followed in: Cucurbits.

49. C: N ratio of organic matter is: 10:1

50. National Seed Act was passed in: 1966.

51. National Seed Corporation (NSC) in: 1963.

52. Root promoting hormones: IBA

53. Flower setting hormone: NAA

54. Bench terracing is done when slope is more 15%

55. Mass per unit volume is called: Bulk density.

56. Disk plough is used when the soil is: Tough.

57. First man made cereal is: Triticale.

58. Cheapest N contains fertilizer is: Urea.

59. First product of urea hydrolysis: Ammonium carbamate.

60. NABARD was set up on the recommendation of: Siva Raman committee

61. Free living nitrogen fixing organism is: Azatobacter

62. The fruit of mustard is known as: Siliqua.

63. Supplemental irrigation is known as: Life saving irrigation

64. Major agricultural importing commodity in India is: Edible oil (65%)

65. Lunishree is a variety of: Super rice.

66. Plants with separate male and female flower on same plant are known as: Monoecious

67. National biodiversity board is situated at: New Delhi.

68. Beaufort scale is used to measure: Wind force/speed

69. One standard atmosphere is equal to 1013.25mb

70. Die back of shoots occur due to deficiency of: Copper

71. Occurrence of grey spots on leaves is due to deficiency of: Manganese (Mn).

72. Most destructive disease of sugarcane is: Red rot of sugarcane.

73. Potatoes are borne on: Stolon

74. Potato tubers are a modified form of: Stem

75. Sowing of sugarcane in trench method is helpful to prevent: Lodging

76. For seed purpose carrot is grown as: Biennial

77. Boron is harmful to plants when concentration is: More than 3 ppm

78. Which crop has maximum productivity among the cereals: Maize

79. Kaolin is a type of anti-Transpirants: Reflecting type

80. Cycocel (CCC) is a: Growth retardants

81. Family of sesame: Pedaliaceae

82. Family of jute: Tilliaceae

83. Exhaustive family of crops is: Graminae

85. Origin of maize: Mexico

86. Origin of soybean: China

87. Origin of tobacco: Mexico

88. State having highest area under summer maize is: Bihar

89. Indian Journal of Agriculture Sciences is published by: ICAR

90. Atmospheric pressure always decreases with: Altitude.

91. Horizontal heat transfers from warmer area to cooler area, the effect is known as: Cloth line effect

92. In which effect vertical heat transfers from warmer to cooler crop area: Oasis effect

93. The enzyme of nitrogen reduction is: Nitrogenase

94. The element of nitrate reduction is the: Molybdenum.

95. Most of field crops require the pH range for optimum growth is: 6.5-7.0

96. Depth of water required by a crop is known as: Delta

97. Area irrigated by one cusec discharge of water is: Duty

98. Period in days for which irrigation is supplied to a crop is: Base period

99. Rancidity in sunflower oil is due to: Oxidation.

100. Famous variety of moth bean is: RMO-40, RMO-257

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