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571.
The wheat crop should be harvested when the moisture content to the grain is:
Answer: Option B
Explanation:
572.
The word 'Agros' means:
Answer: Option C
Explanation:
573.
The World Environment Day is observed on:
Answer: Option B
Explanation:
574.
The yield of wheat grain will be _____ t/ha from the following observation, spacing 20 x 3 cm, effective tillers/plant, 3, number of grains/ear, 32, 1000-grain weight. 40g.
A.
5.8 t/ha
B.
6.2 t/ha
C.
6.4 t/ha
D.
6.8 t/ha
Answer: Option C
Explanation:
575.
What should be the month of sowing of maize in maize toria-potato-moong rotation?
Answer: Option B
Explanation:
576.
There can actually be a build up of toxic concentrations of Fe2+ in the soil solution of:
A.
Aridosol
B.
Histosol
C.
Latosol
D.
Vertisol
Answer: Option C
Explanation:
577.
Thinning of rapeseed and mustard is done to maintain a plant to plant distance of _____ cm.
Answer: Option B
Explanation:
578.
Thiocarbamates viz., EPTC, a soil-incorporated herbicide is readily absorbed by roots and coleoptiles and translocated:
A.
Only upward
B.
Only downward
C.
Both of these
D.
None of these
Answer: Option C
Explanation:
579.
Though tilth is dynamic in nature, can be measured by:
A.
Aggregate analysis
B.
Chemical analysis
C.
Biological
D.
None of these
Answer: Option A
Explanation:
580.
Tillage of the soil _____ rate of disappearance of organic matter.
A.
Reduces
B.
Increases
C.
Maintains
D.
Has no effect
Answer: Option B
Explanation:
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