1989
Which of the following is not an effect on man of the various preventive and control measures of diseases and pest of crops?
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1989 UI Post UTME Agricultural Science Past Questions
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1989
The average seed rate for maize is 25kg per hectare. Allowing for seed wastage of 5 percent, how many kilograms of seeds would be required in planting 2 hectares of farm land?
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1989
If a crop requires 1.5kg phosphorus per hectare, how many kg of manure will be required per hectare if 1kg of manure contains 0.5kg of phosphorus?
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1989
Why should a seed-producing farmer spray an insecticide on his crops only when the bees are not around?
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1989
Which of the following crops is a raw material for the production of chocolate?
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1989
Contact insecticides are used to control
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