81.
Serious insect pest of arhar is

83.
Heat transfer in soil mainly occurs through

84.
High temperature of > 41°C at flowering of castor results in

85.
Sulfur content in SSP (Single Super Phosphate) is

86.
IRGA stands for

87.
Contribution of flag leaf in photosynthates is about

88.
Optimum plant population ha-1 for cotton has estimated as

89.
The most important potential contaminant of food produced on sewage sludge amended soil is

90.
The optimum cardinal temperature points for germination of rice seeds are

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