When soils are poorly drained,
When soils are poorly drained, A. they dry up easily B. they form hardpans C. the air content…
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Which of the following sources of water is least useful for irrigation purposes?
Which of the following sources of water is least useful for irrigation purposes? A. sea B. river C.…
Which of the following is not an effect of water-logging on crop production? it
Which of the following is not an effect of water-logging on crop production? it A. inhibits plant development…
Nitrogen is taken up by plant roots in the form of
Nitrogen is taken up by plant roots in the form of A. nitrate ion B. nitrite ion C.…
Capillarity is highest in
Capillarity is highest in A. silt B. loam C. sand D. clay Correct Answer: Option D Explanation
The most important factor that limits agricultural production in West Africa is
The most important factor that limits agricultural production in West Africa is A. temperature B. wind C. rainfall…
An acidic soil can be neutralized by the addition of
An acidic soil can be neutralized by the addition of A. urea B. ammonium sulphate C. wood ash…
Plant quarantine regulations are enforced to
Plant quarantine regulations are enforced to A. prevent the intoduction of foreign pests and diseases B. increase the…
The primary purpose of establishing wildlife reserve is to
The primary purpose of establishing wildlife reserve is to A. conserve animals for hunting B. prevent extinction of…
Most agricultural policies do not benefit rural communities because
Most agricultural policies do not benefit rural communities because A. they aim at benefiting the national economy B.…