Match the following :

1. Deep rooted plants: occasional watering

Explanation: Deep rooted plants require occasional watering as they can access ground water for their activities. This quality can be used by agricultural scientist for devising irrigation.

2. plants that are not deep rooted: always need rain water

Explanation: Plants that are not deep rooted depends on the rain water for their development. Thus, they require a regular supply of rain.

3. plant roots containing rhizobium-do not need nitrogenous fertiliser

Explanation: Rhizobium is a nitrogen fixing bacteria and as such leguminous plants which have rhizobium in their roots do not require nitrogeneous fertiliser.

4. loss of water- frequent watering

Explaination: Frequent watering causes loss of water as it can’t be absorbed by the soil. The water as such is wasted and can’t be of any use.