First, the reasons for bolting
There are two main reasons for bolting. One reason is nutrition. In the flower bud differentiation of Saposhnikovia divaricata, when there is enough fertilizer and water, the soil is loose, the plant growth will be accelerated, and the flower bud differentiation will be advanced, so there will be immature bolting. The second is caused by photosensitivity, which controls the flowering of plants. In artificial planting, because there are no weeds, the light intensity of Saposhnikovia divaricata is higher than that of wild resources, so the higher photosensitivity will cause Saposhnikovia divaricata to bolting.
Second, prevention and control methods
1. Apply proper basal fertilizer at seedling stage, and apply little or no chemical fertilizer during growth to avoid early flower bud differentiation and bolting caused by excessive plant nutrition.
2. When planting in the field, plant closely and pay attention to the planting density. Generally, 300,000 plants can be left per mu in nursery, and only 30,000 plants can be left for field planting. Shading plants and reducing light intensity can prevent the rapid growth of Saposhnikovia divaricata and inhibit flower bud differentiation of Saposhnikovia divaricata.
3. Control watering to force the root system of Saposhnikovia divaricata to grow downwards, increase the length of the root system, and prevent the lush and bolting of Saposhnikovia divaricata caused by sufficient water. Generally, only slow seedlings need to be watered 1-2 times when they are planted. After they survive, they should be watered less or not to avoid bolting due to vigorous growth.
4. Once wind bolting is found, the reed head should be cut off in time to remove the hormone of flower bud differentiation and germinate adventitious buds again, which has excellent effect on preventing wind bolting.
The above is an introduction to the causes and prevention methods of wind moss. I hope I can help you. If you want to know more, please pay attention to us.
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