Competitive Exams: Agriculture MCQs (Practice-Test 20 of 56)

  1. Match List. I (Fruit Crops) with List II (Method of Propagation) and select the correct answer

    List-I List-II
    1. Mango

    2. Sapota

    3. Pomegranate

    4. Aonla

    1. Air layering

    2. Cutting

    3. T-udding

    4. Softwood grafting

    5. Veneer grafting

    • A
    • B
    • C
    • D
      • 2
      • 5
      • 1
      • 3
      • 4
      • 3
      • 2
      • 5
      • 2
      • 3
      • 1
      • 5
      • 4
      • 5
      • 2
      • 3
  2. Niger plant belongs to which one of the following families?

    1. Cruciferae

    2. Compositae

    3. Umbellifereae

    4. Sapindaceae

  3. Consider the following soybean growing states:

    1. rajasthan

    2. Maharashtra

    3. Madhya Pradesh

    4. Uttar Pradesh

    The correct sequence of the above States in the decreasing order of their area and production is

    1. 3____

    2. 4--3

    3. 3____

    4. 4____

  4. Which one of the following stages is largely influenced by daylight duration as a function of radiation at different latitudes?

    1. Tillering

    2. Flowering

    3. Fertilization

    4. Fruiting

  5. Which one of the following is the feature of the concept of sustainable agriculture?

    1. It precludes increased production

    2. It does not consider the maintenance of the resource base

    3. It does not preclude increased production

    4. It does not preclude increased production but in addition calls for a maintenance of the resource base

  6. Which one of the following herbicides becomes active after p-xidation?

    1. Propanil

    2. Paraquat

    3. MCPB

    4. MCPA

  7. Match List I (Crops) with List II (Critical stages of Irrigation) and select the correct answer

    List-I List-II
    1. Barley

    2. Groundnut

    3. Cotton

    4. Maize

    1. Tasseling and silking stages

    2. Tillering and flowering

    3. Flowering and pod formation

    4. Flowering and fruiting

    • A
    • B
    • C
    • D
      • 1
      • 4
      • 3
      • 2
      • 2
      • 3
      • 4
      • 1
      • 1
      • 3
      • 4
      • 2
      • 2
      • 4
      • 3
      • 1
  8. The tension of soil water at permanent wilting point is

    1. 0.1 atm

    2. 0.3 atm

    3. 15 atm

    4. 33 atm

  9. Which one of the following is the seed rate recommended for hybrid rice under transplanting condition?

    1. 20 kg/ha

    2. 30 kg/ha

    3. 40 kg/ha

    4. 50 kg/ha

  10. Better response of phosphoric fertilize in acid soil lowland ecosystem takes place when applied in the for of

    1. Water soluble Phosphate

    2. rock phosphate

    3. Any P-ntaining fertilizer

    4. Citrate soluble phosphate

    Select the correct answer using the codes given below:

    1. 1 and 2

    2. 1 and 4

    3. 2 and 3

    4. 2 and 4

  11. A farmer has an access of providing only one irrigation to his wheat crop. At what stage of crop growth should he apply the irrigation?

    1. Crown root initiation

    2. Tillering

    3. Flowering

    4. Grain filling

  12. Striga asiatica is a parasitic weed associated with

    1. Sorghum

    2. Wheat

    3. Lucern

    4. Cotton

  13. Farming system represents an appropriate combination of

    1. Cropping system

    2. Mechanization of agriculture

    3. relay cropping

    4. Livestock, fisheries, forestry, poultry etc

    Select the correct answer using the codes given below:

    1. 1 and 2

    2. 1 and 4

    3. 2 and 3

    4. 2 and 4

  14. Which one of the following is referred to as percentage ratio of gross cropped area to net cropped area?

    1. Cropping intensity

    2. Cropping scheme

    3. Cropping system

    4. Cropping pattern

  15. Which one of the following is true in the case of relay cropping?

    1. The flowering period will never overlap with the second crop

    2. The flowering period of one crop always overlaps with the second crop

    3. The flowering period of the first crop may or may not overlap with the second crop

    4. The flowering period crops grown has no relevance

  16. Temporal complementarily in intercropping results from

    1. The growth patterns of the component crops differing in time

    2. The growth patterns of the component crops differing in height

    3. Differences in yield

    4. Differences in cost of cultivation

  17. Which one of the following is referred to as the unconsolidated debris covering the earth's surface?

    1. Lithosphere

    2. Epipedon

    3. regolith

    4. Solum

  18. Which one of the following soils no diagnostic pathogenic horizons?

    1. Ultisols

    2. Entisols

    3. Alfisols

    4. Histosols

  19. Which one of the following soils retains maximum water at field capacity (-kpa)?

    1. Sandy soil

    2. Clay soil

    3. Loamy soil

    4. Silty soil

  20. Alkali soluble and acid soluble fraction of humus is

    1. Humic acid

    2. Fulvic acid

    3. Humin

    4. Acetic acid

  21. Consider the following:

    1. Iron

    2. Oxygen

    3. Manganese

    4. Nitrate

    The sequential reduction of elements occurring in soil under submergence follows which one of the orders?

    1. 1____

    2. 3--2

    3. 2____

    4. 4____

  22. Match List I (Charges on Clay) with List II (Properties) and select the correct answer

    List-I List-II
    1. Permanent charge

    2. Variable charge

    3. Zer point charge

    4. Magnitude of charge

    1. Zeta potential

    2. Isoelectric point

    3. Isomorphous

    4. Lionization of OH groups

    • A
    • B
    • C
    • D
      • 2
      • 4
      • 3
      • 1
      • 3
      • 1
      • 2
      • 4
      • 2
      • 1
      • 3
      • 4
      • 3
      • 4
      • 2
      • 1
  23. Which one of the following is responsible for the failur of crop in saline soil?

    1. High osmotic potential

    2. Poor aeration

    3. Low permeability

    4. Poor physical condition

  24. The ter ‘residual Acidity’ in soil refer to

    1. Acidity which is determined after taking a crop

    2. Acidity that can be neutralized by alkaline materials

    3. Activity of hydrogen ion in the aqueous phase

    4. Acidity due to exchangeable hydrogen and aluminum

  25. Which one of the following is responsible for thickening of potato leaves which tend to roll and lower the storage quality of tubers?

    1. Boron toxicity

    2. Chlorine toxicity

    3. Calcium deficiency

    4. Magnesium deficiency

  26. Which one of the following is the correct sequence of stability of iron chelates suggested by Norvell (1972)?

    1. EDDHA > DTPA > EDTA > NTA

    2. DTPA > EDDHA > EDTA > NTA

    3. NTA > EDTA > DTPA > EDDHA

    4. EDDHA > EDTA > DTPA > NTA

  27. Which one of the following nutrient elements is involved in osmotic regulations and maintenance of turgor pressur in plant cell?

    1. Nitrogen

    2. Phosphrous

    3. Potassium

    4. Sulphur

  28. Consider the following statements: In crops, Magnesium is essential for

    1. Meristematic activity and formation of new tissues in the root tips

    2. Synthesis of chlorophyll

    3. Promoting transpor of phosphorus particularly into the seeds

    4. Synthesis of cell wall

    Which of the statements given above are correct?

    1. 1 and 2

    2. 2 and 3

    3. 3 and 4

    4. 1 and 3

  29. Match List I with List II and select the correct answer:

    List-I (Scientists) List-II (Law/test/hypothesis)
    1. Spillman

    2. Munch

    3. Yabuta and hayashi

    4. Leibig

    1. Pressur-low model

    2. Gibberellins isolation

    3. Concept of Limiting Factor

    4. Law of diminishing returns

    • A
    • B
    • C
    • D
      • 4
      • 3
      • 2
      • 1
      • 2
      • 1
      • 4
      • 3
      • 4
      • 1
      • 2
      • 3
      • 2
      • 3
      • 4
      • 1
  30. Which one of the following is not a critical method of soil fertility evaluation?

    1. Nutrient deficiency symptoms

    2. Soil testing

    3. Field experiments

    4. Plant tissue tests