Technical points of Phyllostachys pubescens forest

Since the beginning of winter, influenced by strong cold air, there has been a process of maximum cooling and rain and snow weather. It has caused different degrees of loss and harm to bamboo forests around the country, with a large number of standing bamboos lodging, towers and bamboo stalks bending, deforming and breaking, which seriously damaged the productivity of bamboo forests. In order to reduce the loss of bamboo forest caused by snow and restore the productivity of bamboo forest as soon as possible, it is suggested that all localities should take the following measures actively: 1.

1, bending. Due to the accumulation of snow and ice on bamboo plants, the tip of the crown hangs down and even touches the ground, and each trunk is bent into an arch. After the ice and snow melt, the bent bamboo will naturally recover, which has little effect on the bamboo forest.

2, broken. The trunk of bamboo plants is broken due to the accumulation of ice and snow, and the tearing length is often less than 1 m.

3. rupture. Due to the accumulation of ice and snow on the bamboo plant, the trunk was torn and grew into strips several meters long.

Step 4 flip. Due to the accumulation of ice and snow, bamboo seedlings were uprooted, and the standing bamboo fell and turned over. The underground part of Phyllostachys pubescens is exposed to the ground, which destroys the underground system of the stand and has the greatest impact on the bamboo forest.

Second, the recovery measures

1, beheaded. Cutting the tip is the main emergency measure to reduce the snowstorm. In the early stage of freezing rain and snow and the early stage of melting snow, bamboo shoots should be cut off as soon as possible in areas with convenient transportation, that is, bamboo shoots should be cut off, leaving about 15 branches.

2, bamboo forest cleaning. It varies according to the victim's situation and type.

(1) Cleaning should be carried out after the bamboo shoot stage. Although bamboo plants are split by snow and turned over, they usually don't die, and they can even continue photosynthesis to produce organic matter. If it is cut down too early, it will form "crying bamboo shoots" and "crying bamboo shoots", which is extremely unfavorable to the regeneration of bamboo forests.

(2) After the bamboo shoots are finished and the new bamboo shoots grow branches and leaves, the bamboo forest can be cleaned and treated differently according to the damage degree of the bamboo forest. The bent bamboo should be kept as much as possible, and the broken bamboo at the tip can be cut off if the broken part is higher. Turn the bamboo upside down and split it, and you can cut down the whole bamboo.

(three) cut down a small amount of bamboo that seriously hinders traffic or bamboo forest management.

3. Fertilize. According to the site conditions, pre-bamboo shoot fertilizer was applied to Phyllostachys pubescens forest in early March, and fertilizer was applied by the method of planting holes, and urea15-25 kg was applied per mu; Long-acting compound fertilizer is applied by furrow application method in May and June, and 20-30 kg is applied per mu. 40-50 kilograms of long-acting compound fertilizer was applied to each acre in May-June in the early years to promote the germination and growth of bamboo whips.

4. Keep bamboo shoots and raise bamboo.

In order to restore the bamboo forest, we should keep as many bamboo shoots as possible during the bamboo shoot emergence period, and dig less carefully winter bamboo shoots and whip bamboo shoots. However, shallow whip tip, outcrop tip, receding tip and weak tip can be excavated in time to increase economic income. If the bamboo forest is seriously damaged, we should also keep healthy small bamboo shoots, and then cut off the small bamboo shoots after they grow into large-diameter bamboo. In the bamboo forest recovery period (2-3 degrees), try to dig less or not to dig winter bamboo shoots and whip bamboo shoots. Generally, about 40 plants can be left per mu, and the following years depend on the specific situation of bamboo forests. The goal of keeping long bamboo shoots in Phyllostachys pubescens forest is to make each mu of bamboo forest reach 150-200 plants.