Off-season planting of ash trees refers to the period from May to early October each year. Transplanting during this period is collectively referred to as off-season planting. In the north, the temperature is very high from May to early October, the air is relatively dry and the evaporation phenomenon is strong. This period is also the growing period of the ash tree, with lush foliage and active internal circulation. Combining the above factors of favorable conditions and geographical conditions, the planting of ash tree off-season full canopy will have an impact on the survival rate. I will talk about several tips for ash tree maintenance.
After the ash tree is planted that day, the first step is to choose the method and material for strengthening the tree. We generally use triangular support or four-corner support to strengthen the ash tree. When strengthening, pay attention to selecting support rods of appropriate length and thickness according to the diameter, crown, and bifurcation points of the ash tree (currently, bamboo and fir rods are generally used for support rods). In this way, we choose reasonable support rods, because of the tree selection, which can save costs and labor. The reinforcement points are wrapped with straw ropes or wrapped with straw curtains.
After choosing the material, start to strengthen the support treatment. Let me announce several key points in my operation: 1. Choose reasonable reinforcement points according to the canopy, trunk height, and branch points. 2. Use straw curtains or straw ropes to protect the bark of the main pole to prevent the reinforcement pole from damaging the bark. 3. Regardless of the triangular support or the four-corner support, the support points should be buried firmly to prevent slippage. The occurrence of slippage will cause the ash tree to tilt after watering and cause damage to the root system.
After the ash tree is planted and fixed, a circular irrigation cofferdam should be made around the tree for later irrigation. The diameter of the irrigation cofferdam is about 20cm longer than the diameter of the tree hole. The height of the irrigation cofferdam depends on the size of the ash seedlings. If the size is large, the water consumption in the later period of irrigation will increase the height of the cofferdam appropriately.
After the tree hole is completed, irrigate and water. The first time watering requires a large amount of water to fill the tree hole thoroughly. In the watering process, pay attention to the collapse in the tree hole, and timely supplement the soil to fill the collapse. Also pay attention to see if the saplings will be tilted. If they are tilted, stop irrigation in time and recheck the reinforcement of the saplings.
In view of the climatic conditions of this stage in the north, the tree trunks should be treated with water retention and evaporation prevention on the day after the seedlings are planted. The first method uses straw ropes or straw curtains for bandaging protection, wrapping from the bottom of the seedling main pole, and determining the height of our wrapping according to the height of the sapling. The height of our wrapping for trees like white wax should not be less than 1.5 meters.
There is also a patented method of our own research. The materials that need to be prepared are: a bundle of transparent film, soil, fresh water, and insect repellent. First of all, we go to the soil and mud, and add a certain dose of insecticide appropriately. The mud can be wiped on the trunk without flowing. After finishing muddying, wipe you on the tree pole, from the bottom to 1.5 meters above, the thickness is about 0.5-1 cm. During film winding, there must be no gaps in the middle, or the corresponding effect will not be lost.
Due to the great transpiration effect during this period, we will sprinkle the canopy in the morning, midnight and evening in the next few days. This can reduce the temperature and increase the humidity around the canopy, which can reduce the transpiration of the canopy and reduce water loss. Of course, this is also to be sprayed when the temperature is high, and everyone should not spray the canopy on rainy days.