Agri-MCQs # 1: Important MCQs for Agriculture related Tests

1. _______ has been recommended for the control of weed in blackgram:

2. _______ comprises important mechanisms of herbicide detoxification in soil under field conditions especially surface incorporation subsequent to rainfall or irrigation:

3. 

_______is considered to be most important of the soil organisms bringing about the conversion of NH4+ to NO2-

4. 

_______ is probably the most important growth limiting factor in acid soils especially those having pH below 5.0 – S.S:

5. 

_______ of the NH4+ in a region of alkaline microsite helps to restore the conditions suitable for the normal conversion of NO2- to NO3-

6. 

_______ degradation plays a major role in the persistence and behaviour of herbicides in the soil:

7. 

________ generally augments the utilization of phosphorus which is water soluble:

8. 

______ in 1909 developed an equation that related growth to the supply of plant nutrients:

9. 

______ ion effect represents the effect of adsorbed ion on the release of another from the surface of a colloid:

10. 

_______ a.i./ha has been recommended for the control of weeds in mungbean:

11. 

Which of the following soil is of ashy grey in colour?

12. 

Which of the following is perennial weed?

13. 

Ratooning’ is practised as a matter of routine in:

14. 

V’ notch is a:

15. 

Scientific name of Cogon grass is:

16. 

Velocity of Gale is:

17. 

Arrowing refers to:

18. 

Boll shedding in cotton is due to:

19. 

Hot water treatment of sugarcane sets is done because:

20. 

In Instrument that indicates the direction of the wind is:

21. 

Reclamation disease due to copper deficiency occurs in plants grown on newly reclaimed acid soil:

22. 

Trap crops refer to:

23. 

2, 4-D is a herbicide:

24. 

What is the effect of potassic fertilizers?

25. 

2, 4-D is an important herbicide of:

26. 

2, 4-D is the :

27. 

The most sensitive stages of sunflower to water stress lie between:

28. 

A basal dose of phosphorus at ______ g/m2 to tobacco nursery area has been recommended:

29. 

A cloud type that occurs in low height in the atmosphere is:

30. 

A farmer is to select suitable crops for a drought prone un-irrigated area. Which one of the following groups of crops should be chosen for mixed cropping?

31. 

A good crop of potato yielding about 400 q/ha on an average removes _______ N + P2O5 + K2O kg/ha, respectively:

32. 

Zero tillage system was first used successfully in 1950 in pasture renovation in:

33. 

A lentil crop grown with improved package of practices may record the yield upto t/ha:

34. 

A main shortcoming that was observed during green revolution:

35. 

A millet crop is:

36. 

A minor portion of the phosphorus absorption capacity of soils originates from:

37. 

A screen which is used to measure the temperature of atmosphere is known as:

38. 

A short duration crop in between two main crops is termed as:

39. 

A tuber represents:

40. 

A weed that spreads asthma is:

41. 

According to the modern concepts; the major function of inter-row tillage is:

42. 

Addition of ammonium sulphate to a herbicidal spray solution enhances the ______ against Agropyron repens:

43. 

Adsali crop of sugarcane takes a period of maturity of:

44. 

Affinity of the enzyme RuBP carboxylase for carbon dioxide is enhanced by:

45. 

Winter application of phosphorus is followed in:

46. 

American cotton should normally be planted at the distance of ______ cm:

47. 

Ammonium sulphate is preferred for nitrogen application in groundnut because it also provides:

48. 

Among small grain crops _____ has an exceptional tolerance to low levels of soil copper supply:

49. 

Which system of irrigation is not practiced usually?

50. 

With too much application of nitrogenous fertilizer, sugar content in juice of sugarcane will:

51. 

Amorphous aluminosilicate minerals like allophane have ______ negative charge, which is partly or entirely balanced by complex aluminium cation:

52. 

Anaerobic environment in paddy soil is responsible for gaseous loss of fertilizer nitrogen by:

53. 

Application of nitrogen in cowpea at the time of planting is known as:

54. 

Application of propanil after ______ in rice-paddies causes prohibitive vegetative injury:

55. 

Application of urea, aqua-ammonia, anhydrous ammonia and diammonium phosphate form alkaline microsite at the point of application in rice ______ encourage the taking up of nitrite:

56. 

Area required for raising seedlings for one-hectare normal sown crop of paddy:

57. 

Arhar (pigeon pea) is commonly known as:

58. 

As per principles of crop rotation pulses should be included in rotation because:

59. 

Which portion of sugarcane stalk is preferred for sowing purposes?

60. 

At pH ______ H+ ion toxicity is lessened by the removal of these ions:

61. 

Autumn sown crop of sugarcane requires fertilizer than that of winter sown?

62. 

Availability of phosphorus is maximum at pH:

63. 

Azolla is a:

64. 

Azotobacter spp fix nitrogen:

65. 

Bacteria responsible for nitrification are:

66. 

Balanced fertilizer is used:

67. 

Barley requires _____ climate:

68. 

Based on dark metabolism, glucose consumption for protein production is about _____ percent when nitrogen is provided as nitrate rather than as ammonium:

69. 

Bagasse, a byproduct of sugar manufacturing industry, is used for the production of:

70. 

Black soils are deficient in:

71. 

Black soil is used for the cultivation of:

72. 

Botanical name of Sixed row barley:

73. 

Brassica Juncea is the scientific name of:

74. 

Broadcast potassium is ________ than banded:

75. 

Brown strips downy mildew of maize can be controlled by use of:

76. 

Build up of soluble sugars and amino acids (due to inadequate potassium), low molecular weight compounds encourage the activity of:

77. 

Butylate stimulates germination in ______ seeds by enhancing gibberellic activity or by changing membrane of seed permeability:

78. 

By which of the following method of raising seedlings of rice, we can get the ready seedling in early time:

79. 

Indirect methods of measuring soil water content consist of resistance method and:

80. 

Capillary water will not be available to the plants it is held at a tension of:

81. 

Castor belongs to family:

82. 

Which one of the following pairs is not correctly matched?

83. 

Chickpea pod borer can be controlled by the spray of:

84. 

Clays such as kaolinite will fix larger quantities of phosphorus with _____ SiO2/R2O3 ratio:

85. 

Common herbicide used in wheat is:

86. 

Content of starch in maize is approximately:

87. 

Cotton belongs to the _____ family:

88. 

Blackgram grown in summer should be seeded at ______ kg/ha:

89. 

Cowpea grown for grain purpose should be seeded at ______ kg/ha.

90. 

Crop lodging refers to surface:

91. 

Crop mixture have proved biologically most dynamic under:

92. 

Crop production and animal husbandry collectively is known as:

93. 

Crop rotation is defined as a:

94. 

Cropping intensity is:

95. 

Cropping intensity means:

96. 

Cropping pattern is defined as:

97. 

Crops during any season are generally able to recover only _____ of the added fertilizer phosphorus:

98. 

Dapog method of crop raising is associated with:

99. 

Dapog method of raising seedlings is related to:

100. 

Dapog seedlings would be ready for transplanting within:

101. 

Deep ploughing of soil in a groundnut field should normally be avoided because it:

102. 

Deficiency of nitrogen in maize causes:

103. 

Deficiency symptoms on apical buds is due to:

104. 

Dehaulming in potato is done to obtain:

105. 

Delinting of cotton helps in:

106. 

Delinting of cottonseed may be done with:

107. 

Denitrification losses of nitrogen in paddy field can be prevented by incorporating ammonical nitrogen into the:

108. 

Which one of the following types of crop dultivations will be most appropriate and effective in forests?

109. 

Dibbling (sowing) of wheat requires seed:

110. 

Dispersing agents reduce ______ between similar particles:

111. 

Doddar is a serious weed of:

112. 

Which one of the following terms is used to denote the relative land area under sole crop required to produce the same yield as obtained under a mixed or an intercropping system at the same management level?

113. 

Dry land farming mean:

114. 

During kharif reason sunflower takes _____ days to mature:

115. 

Dwarfing gene in rice is:

116. 

Each unit increase in pH brings about a decrease in solubility of Fe2+ of _____ folds.

117. 

Embryo seed dormancy is mainly found in:

118. 

Enzyme responsible for hydrolysis of urea is:

119. 

Excess of chlorides in tobacco:

120. 

Fertilizer dose recommended for a crop of groundnut is N + P2O5 + K2O kg/ha, respectively: