B:-Horticulture
C:-Agronomy
D:-Plant pathology
Correct Answer:- Option-A
Question39:-The ideal soil texture for crop production is
A:-Sandy soil
B:-Loamy soil
C:-Clayey soil
D:-None of the above
Correct Answer:- Option-B
Question40:-Field capacity is a point at which
A:-all the macropores and micropores in the soil are filled with water
B:-all the macropores filled with water and the micropores filled with air
C:-all the macropores filled with air and the micropores filled with water
D:-None of the above
Correct Answer:- Option-C
Question41:-'Yellowing' is the deficiency symptom of which of the following element
A:-Potassium
B:-Nitrogen
C:-Phosphorus
D:-Calcium
Correct Answer:- Option-B
Question42:-The "Rag doll" method is used for testing
A:-Seed purity
B:-Quality of seedling
C:-Seed gemmination percentage
D:-Moisture content in seed
Correct Answer:- Option-C
Question43:-Leaf cuttings are used for the propagation of
A:-Sansevieria
B:-Curry leaf
C:-Tea
D:-Passion fruit
Correct Answer:- Option-A
Question44:-Yellow sticky trap is used for the control വ്‌
A:-aphids
B:-beetles
C:-bugs
D:-white flies
Correct Answer:- Option-D
Question45:-One of the following sprayer is used to spray on tall trees
A:-Knapsack sprayer
B:-Hand sprayer
C:-Rocker sprayer
D:-Mist blower
Correct Answer:- Option-C
Question46:-Pale yellow triangular patches below the perianth region of coconuts is the symptom of attack of
A:-Eriophyid mite
B:-Rhinoceros beetle
C:-Nut crinkler
D:-Red palm weevil
Correct Answer:- Option-A
Question47:-Abnormal leaf fall is a disease affecting
A:-coconut
B:-Mango
C:-Rice
D:-Rubber
Correct Answer:- Option-D
Question48:-India's total food grain production is around