When cultivating peas, topping is needed, which can help the growth of lateral branches. The topping time is generally as long as 30cm. At this time, we should not only do a good job of topping, but also build climbing vines, so that the stems and leaves have more room for growth and are more ventilated and transparent. Too early or too late topping will affect its growth and pod setting, so it is necessary to grasp the appropriate time.