General Agriculture MCQ For Competitive Exam-106

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Q. The book “Annals of Agriculture” is published by;-
a. Arthur Young

b. Van Helmont

c. Jethro Tull

d Blackman

Q. In India, first separate department of agriculture was established in;-
a. 1881

b. 1900

c. 1801

d. 1985

3. Yellow revolution is associated with;-
a. Pulse production

b. Milk production

c. Fruit production

d. Oilseeds production

4. Secondary consequences of increasing elevation, both agronomically and economically significant are _______ .
a. Decreased temperature

b. Decreased precipitation

c. Decreased wind velocity

d. Increased soil fertility

5. The net assimilation rate is express in terms of ;-
a. g cm-2 day-1

b. g g-1ha-1

c. g g-1day-1

d. g cm-2 ha-1

6. Which of the following crop geometry ensures uniform solar radiation availability to crop?
a. Rectangular

b. Random

c. Square

d. None of these

7. The origin place of potato is;
a. China

b. South America

c. India

d. Africa

8. Conservation tillage tends to encourage ________.
a. Higher microbial population

b. Lower number of earthworms

c. Reduced soil fauna

d. None of these

9. Though tilth is dynamic in nature, can be measured by _______ .
a. Aggregate analysis

b. Chemical analysis

c. Biological analysis

d. None of these

10. Capillary movement of water is complemented by________.
a. Stem elongation

b. Root extension

c. Leaf orientation

d. None of these

11. A soil absorbs about ______ of incoming solar radiation.
a. 5 Percent

b. 10 Percent

c. 15 Percent

d. 20 Percent

12. Nitrate levels in drinking water above ______ mg per litre are considered as a human health hazard.
a. 5

b. 10

c. 15

d. 20

13. Biogeochemical nutrient cycles have led to recognize that ____ is very important.
a. Balanced fertilization

b. Over fertilization

c. Under fertilization

d. None of these

14. Wavelength longer than ______ m/µ is not visible to the eye, and are called infrared.
a. 450

b. 550

c. 650

d. 750

15. North of the equator, surface winds are known as ______ .
a. Northeast trade winds

b. Southeast winds

c. Westerlies

d. Easterlies

16. The spray drift of 2,4 D (ester form) can cause considerable damage in ______ .
a. Maize

b. Rice

c. Sorghum

d. Cotton

17. Mustard crop planted at a spacing of 50 x 20 cm will have _______ plants / ha.
a. 75,000

b. 1,00,000

c. 1,25,000

d. 1,50,000

18. The Agroclimatic zone XIII, comprising the state Gujarat represents _________ type climate.
a. Arid to extremely arid

b. Arid to dry sub-humid

c. Semi arid

d. Humid

19. The optimum temperature for better crop production is between _____ .
a. 12 – 18°C

b. 24 – 30°C

c. 18 – 24°C

d. 30 – 35°C

20. Which of the following instruments used to determining direction of wind?
a. Anemometer

b. Anemograph

c. Aerometer

d. Aeroscope slide

21. Which of the following weed having herbicide resistance?
a. Avena fatua

b. Phalaris minor

c. Tridox procumbens

d. Trianthema portulocastrum

22. Which of the following causes more wastage of herbicide by drift?
a. High volume sprayer

b. Ultra-low volume sprayer

c. Hand sprayer

d. Low volume sprayer

23. Which of the following pair of weeds and crops is not correctly matched?
a. Striga : Sorghum

b. Cuscuta : Lucerne

c. Typha : Sugarcane

d. Orobanche : Tobacco

24. Which of the following one capable of counteracting the effect of herbicide?
a. Anathesia

b. Antidote

c. Aborgines

d. None of these

25. Stale seed bed technique of weed control is a _______ method.
a. Cultural

b. Mechanical

c. Chemical

d. Biological

26. Thiocarbamates viz., EPTC, a soil- incorporated herbicide is readily absorbed by roots and coleoptile and is translocated by;-
a. Only upward

b. Only downward

c. Both of these

d. None of these

27. Photodecomposition plays an important role in the loss of urea herbicides from ____ soil surface.
a. Moist

b. Wet

c. Dry

d. None of these

28. ______ a.i./ha has been recommended for weed control measure in mungbean.
a. Fluchloralin @ 1 kg

b. 2,4 – D @ 1 litre

c. Simazine @ 1 kg

d. Atrazine @ 1 kg

29. Which of the followings is a indicator plant for the bioassay of Atrazine?
a. Sugarcane

b. Sesbania

c. Sorghum

d. Soybean

30. The quantity of alachlor (50%) needed for spraying 1 ha @ 0.75 kg a.i. ha-1
a. 1.5 kg

b. 1.25 kg

c. 1.0 kg

d. 1.75 kg

31. When 10 kg 2,4–D is mixed in 1000 litres water, will give concentration ____ .
a. 100 ppm

b. 10000 ppm

c. 1000 ppm

d. 100000 ppm

32. Which of the following stages of a crop are more prone to weed competition?
a. Germination to seedling

b. Vegetative

c. Reproductive

d. Maturity

33. PF refers to;-
a. Logarithm of H ion concentration

b. Logarithm of free flow water

c. Logarithm of soil moisture tension

d. Logarithm of salt concentration

34. Which of the following is a method of indirect measurement of soil moisture?
a. Neutron moisture meter

b. Electron moisture meter

c. Positron moisture meter

d. Proton moisture meter

35. Which of the following formulae is correct?
a. WR = ET +AW + INR

b. WR = IR + (ER+S)

c. ET = IR + INR (-S)

d. IR = WR – (ER + S)

36. What will be CPE value when irrigation is scheduled at 0.8 IW/CPE with 6.0 cm
depth of irrigation water?
a. 7.5 cm

b. 75 mm

c. 750 cm

d. Both a & b

37. Sugarcane crop required maximum water at;-
a. Germination stage

b. Grand growth stage

c. Maturity stage

d. All of these

38. Which of the following is not a component of the moisture potential in soils?
a. Matric potential

b. Gravity potential

c. Turger potential

d. Osmotic potential

39. Major irrigation project covers an area of _______ .
a. 1000 ha

b. > 10000 ha

c. 5000 ha

d. None of these

40. SAR and RSC values for normal water should be _________.
a. > 10 and < 2.5

b. <10 and > 2.5

c. < 10 and <2.5

d. None of these

41. The C/N ratio in the organic matter of furrow slice (upper 15 cm) of arable soils commonly ranges from _________ .
a. 3:1 to 4:1

b. 6:1 to 7:1

c. 18:1 to 19:1

d. 8:1 to 15:1

42. Which of the following rotations is likely to leave soil richer in organic matter?
a. Continuous sorghum

b. Continuous maize

c. Continuous oats

d. Maize – Oats – Clovers

43. The maximum phosphorus availability in most of the soils is in the pH range;-
a. 4.0 to 4.5

b. 5.0 to 5.5

c. 6.0 to 6.5

d. 7.0 to 7.5

44. The deficiency symptoms are first observed on apical buds in case of ;-

a. Zn deficiency

b. Mo deficiency

c. N deficiency

d. B deficiency

45. The law of diminishing return was proposed by ________ .
a. Mitscherlich

b. Wilcox

c. Black man

d. Van Liebig

46. Which of the following plant species produced nodules on its stem?
a. Sesbania aculeata

b. Sesbania rostrata

c. Crotolaria juncea

d. Sesbania acuminata

47. The quantity of DAP and urea required to fertilized the crop @ 120 – 60 kg N P2O5 will be;-
a. 130 kg DAP and 210 kg Urea

b. 130 kg DAP and 260 kg Urea

c. 210 kg DAP and 130 kg Urea

d. 260 kg DAP and 130 kg Urea

48. VAM belongs to the group of;-
a. Bacteria

b. Fungi

c. Algae

d. Actinomycetes

49. DRIS approach for recommending fertilizer schedule is based on ____ analysis.
a. Soil sample

b. Water sample

c. Plant sample

d. None of these

50. Which of the following crops are susceptible to potassium chloride application?
a. Rice and wheat

b. Sugarcane

c. Tea and coffee

d. Tobacco and potato

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