Competitive Exams: Agriculture MCQs (Practice-Test 7 of 56)
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Which one of the following food-ins is most coarse?
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Panicum miliaceum
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Echinochloa frumentacea
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Setaria italica
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Andhr Pradesh
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consider the following cotton-owing states:
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Gujarat
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Maharashtra
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Punjab
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Andhr Pradesh
The correct sequence of these states in terms of the descending order of their acreage is
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2, 3, 1, 4
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4, 1, 2, 3
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2, 1, 4, 3
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3, 2, 4, 1
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Which one of the following is the ideal temperature range for tailoring stage in wheat?
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10° C to 15° C
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16° C to 20° C
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20° C to 23° C
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23° C to 25° C
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Match List I with List II and select the correct answer:
List-I (Terminology) List-II (Explanations) -
Crop water use efficiently
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Cropping index
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Crow growth rate
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Cropping intensity
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Number of crops grown/annum on a given area
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W1 and W2 ar plant dr weight of time t1 t2
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Total cropped area in a year/Net cultivated area
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Crop yield 100/Water depleted by crop plants through evaporation
- A
- B
- C
- D
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- 3
- 1
- 2
- 4
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- 4
- 2
- 3
- 1
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- 4
- 1
- 2
- 3
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- 2
- 4
- 1
- 3
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Match List I with List II and select the correct answer:
List-I (Different cultural operations) List-II (Crops) -
Dapog nursery
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Desuckering
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Detasseling
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Earthing up
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Miaze
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rice seedling
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Sugarcane
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Tobacco
- A
- B
- C
- D
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- 2
- 4
- 3
- 1
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- 4
- 1
- 3
- 2
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- 4
- 2
- 1
- 3
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- 2
- 4
- 1
- 3
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To obtain optimum yield of paddy, the number of ear bearing tiller per square meter should be:
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150 180
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200 250
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350 400
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450 500
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Which one of following pair of crops and critical stage of is NOT correctly matched?
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- Bajra
- Ear head emergence
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- Cotton
- Pre-owering
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- Wheat
- Crown root imitation
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- Groundnut
- Pod development
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Which one of the following crops is most sensitive to both excess moistur and drought?
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Direct-eded rice
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Maize
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Sunflower
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Sorghum
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Atrazine used as an antitranspirant
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reduces the growth of the crop
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Does not reflect light from plant leas surface
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Affects the closur and opening of stomata
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Forms thin layer on leaf surface
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Which one of the following pair of weeds and crops is NOT correctly matched?
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- Striga
- Sorghum
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- Cuscuta
- Lucerne
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- Typha
- Sugarcane
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- Orbanche
- Tobacco
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‘Atrazine’ effectively controls grasses in maize field without causing har to the crop plants, as degradation of the chemical in maize plant occur due to the presence of
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r Q enzyme
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Amylases
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Aryl acyl amidase
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GSH enzyme
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Which one of the following is mycoherbicide?
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Diquat
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Met sulfuron methyl
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Cokego
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Bromacil
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Consider the following is crops characteristics?
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Shor duration
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Photo insensitiveness
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Synchronous tillering
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Determinate
The correct sequence of these characteristics for selecting the crop for multiple cropping would be:
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1, 2, 4, 3
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2, 1, 3, 4
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1, 2, 3, 4
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2, 1, 4, 3
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Which one of the following crop rotations is the BEST for maintaining soil fertility?
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Maize-ria-wheat
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Paddy-wheat-wpea
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Paddy-potato-een gram
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Soybean-wheat-een gram
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Productivity of an intercrop per unit area of ground compared with the expected from sole crop sown in the same proportions is termed as
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Land equivalent ratio
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Competitive ratio
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Land equivalent coefficient
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Crop performance ratio
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Which one of the following fertilizer schedule is recommended to optimize the productivity in intercropping system?
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Full recommended does of both the main crop and intercrop
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Full recommended does of main crop and half of intercrop
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Half recommended does of main and intercrop
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Full recommended does of main crop only
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Which one of the following planting geometr is recommended to optimize system productivity in intercropping systems in semi-id and semi-mid ecosystem?
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Normal planting of intercrops between two rows of normal planted main crop
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Skip row planting
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Three rows of main crop and two rows of intercrops
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Four rows of main crop and one row in intercrop
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Mechanical analysis of soil makes use of
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Darcy's Law
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Stoke's Law
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Schofield's Law
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Ohm's Law
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Which one of the following is the correct sequence of transformation igneous rock to kaolinite?
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Igneous rock-Montmorillonite-Smectite-Halloysite-Kaolinite
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Igneous rock-Montmorillomnite-Metahalloysite-Halloysite-Kaolinite
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Igneous rock-Montmorillonite-Halloysite-Metahalloysite-Kaolinite
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Igneous rock-Halloysite-
Methalloysite-Montmorillonite-
Kaolinite
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The capacity of a soil to resist appreciable change in pH value is called
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Cation-change capacity
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Buffering capacity
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Percentage base saturation
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Anion-change capacity
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Humic acid is a fraction of humus, which is
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Soluble in alkali and acid
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Soluble in alkali and insoluble in acid
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Insoluble in alkali and soluble in acid
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Insoluble both in alkali and acid
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Match List I with List II and select the correct answer:
List-I (Soil parameter) List-II (Apparatus used) -
Mechanical composition
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Soil aggregation
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Plasticity
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Particle density
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Atterberg; s apparatus
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Pycnometer
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Bouzoukis hydrometer
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Yoder's apparatus
- A
- B
- C
- D
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- 4
- 1
- 4
- 2
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- 2
- 4
- 3
- 1
-
- 3
- 4
- 1
- 2
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- 4
- 3
- 1
- 2
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Consider the following notation: The colour of soil, as per Munsell notation is denoted as 5Yr ⅚ Study critically, the following explanations of this notation:
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5 Yr denotes ‘hue’ of the colour wher Yr means yellow-d the gigure 5 indicates that the contribution of yellow low-d, the figur 5 indicates that the contribution of yellow colour to the soil is 5 times mor than that of red colour.
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The figur 5 in ⅚ is the value of the colour which indicates that the colour is visually midway between absolute white and absolute black.
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The figur 6 in ⅚ denotes the ‘Chroma’ of the colour. It shows the chroma is in the 7th place from 0 (including 0) in the scale of 0 to 20.
Which of the above explanations are correct?
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1 and 2
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2 and 3
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1 and 3
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1, 2 and 3
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Which one of the following values given in terms of redox-tential of soils (mV) represents highly reduced conditions of the soil?
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250
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100
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+ 200
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+ 600
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The process of replacement of one atom by another atom of similar size, in a crystal lattice of a soil clay, without disrupting or changing the crystal structur of the mineral is termed as
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Ion exchange
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Isomerism
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Isomorphic substitution
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Polymorphism
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Which one of the following graphs describes soil pH?
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Consider the following statements regarding Zinc in soils:
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Zinc is mor soluble in acid soil and the solubility decrease as the soil pH increases.
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Solubility of soil Zinc, native or applied, increases with the increase of native or added phosphate to the soil.
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Zinc is practically immobile in the soil and hence leach ate of the soil contains ver little zinc in it.
Which of the above statements are correct?
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1, 2 and 3
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1 and 2
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2 and 3
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1 and 3
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The element which does NOT enter into permanent organic combination in plants is
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Nitrogen
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Phosphrous
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Magnesium
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Potassium
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The nitrogen present in a 5 gram soil sample is estimated by the modified Kjeldahl's method and the NH3 evolved is absorbed in 4% boric acid solution. The back titration value of 0.1 normal standard H2SO4 is 100 ml. The percentage of nitrogen in the soil sample will wor out to be
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0.10
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0.14
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0.28
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0.36
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The plateau with little growth-ate and continuing accumulation of nutrient element in the plants can be defined as
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Sever deficiency range
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Toxic range
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Moderate deficiency range
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Sufficiency range
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