When does the yam bloom?

To control the growth and chemical control of Chinese yam is a technical measure to control the growth of Chinese yam with chemicals in view of the excessive growth of yam and the excessive growth of stems and leaves. In order to do a good job in chemical control, we must first find the root cause of the overgrowth of yam.

The purpose of controlling prosperity is to create a high light efficiency shelf surface, reasonable distribution of the largest number of leaves in a certain space, in order to obtain the highest photosynthesis and thus increase yield.

When the seedlings of Chinese yam are nearly full of scaffolds or reach 2 / 3, the seedlings are controlled by medicine.

The length of the stem vine is most affected by the length of the internodes, so it is very important to control the length of the internodes. In this way, if the chemical control time in the vast majority of Internode length has been fixed, it is obvious that the opportunity for chemical control has been lost, it is meaningless to reduce the stem length, and can only harvest the side effects of chemical control. Therefore, the first time of chemical control should be sooner rather than later.

In addition to drug control, we should also control the ratio of base fertilizer and topdressing fertilizer, and adjust the use of fertilizer according to the soil fertility of the plot, the appearance and growth of yam, in order to achieve the ideal effect, otherwise, the nitrogen fertilizer is too high, or the fertilizer amount is too large, it will cause the upper control and the lower promotion, the measures are contradictory, the measures are ineffective, and the output will be endangered.