The diagram below shows a practice carried out on various crops on the farm. Study them carefully and answer the questions that follow.
![agrif2t1midq21a](https://www.easyelimu.com/images/form_2_past_papers/mid_term_2021/agric/agrif2t1midq21a.PNG)
- Identify the farm practice represented by B.
- State the importance of the above practice in the following crops
- At what stage of growth should the above practice be carried out in maize.