GCE Agricultural Science 1990 Question 46

Which of the following is not a reason why planting a mixture of grass and legume on a pasture is economical to the farmer? The

1. A.mixture can harbour pests
2. B.mixture helps in preventing soil erosion
3. C.farmer will save on fertilizer
4. D.mixture provides a balanced feed for livestock
5. E.mixture increases the rate of production of livestock.