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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