Agricultural Science Questions
Question 256:
Nitrogen is made available to plants in the form of nitrates through the process of
- A Deamination and nitrification
- B Ammonification and denitrification
- C Deamination and ammonification
- D Nitrification and dentrification
- E Nitrification and ammonification
Question 257:
Which of the following is not an effect of burning on the soil?
- A Increasing the organic matter in the soil
- B Increasing the soil nutrients
- C Increasing the acidity of the soil
- D Exposing the soil to erosion
- E Sterilization of the soil
Question 258:
The function of soil micro-organisms include the following except
- A Decomposition of dead plant and animal remains
- B Recycling of nutrients
- C Causing plant or animal diesases
- D Living as parasites on crop plants
- E Filtration of soil water for plant use
Question 260:
The following are advantages of the sprinkler method of irrigation except
- A Rate of application of irrigation water can be controlled
- B Portable nature of many sprinkler system make them suitable for use
- C The sprinkler system can be made automatic
- D Method can be where topography affects horrowing of land
- E Method may be difficult for local farmers to use