1 Advantages of container seedling raising technology in forestry production

1. 1 got rid of the influence of seasonal changes.

The use of container seedling raising technology can be directly applied to greenhouse or plastic shed, so as to get rid of the influence of seasonal changes and not be restricted by atmospheric conditions. In addition, the survival rate of container seedlings is higher in the same time.

1.2 basically realized mechanized seedling raising.

With the help of all kinds of mechanized planting, the work task of seedling raisers can be reduced, and only one or several seeds can be cultivated in each container, thus saving seeds to the maximum extent.

1.3 species in nutrient soil.

Container seedling raising technology is basically planted with nutrient soil, which contains a lot of nutrients and relatively high water content, which can meet the nutritional needs of seedlings to the greatest extent and promote the growth and development of seedlings.

1.4 greatly improved the survival rate.

The roots of seedlings can develop well in containers and are usually not harmed by the outside world. In the process of seedling emergence, it is beneficial to avoid root damage. At the same time, there will be no slow seedling stage in seedling raising, which greatly improves the survival rate of seedlings.

2 container seedling technology applied to effective measures of forestry production

In the current forestry seedling raising process, container seedling raising technology has been widely used. In the actual seedling raising process, container seedling raising technology mainly includes soilless culture and manual production.

2. 1 Establish a nursery

Nursery is required to be built in a place with sufficient water resources, and the building is best equipped with cutting beds, nursery grounds and germination rooms. These basic seedling raising equipment are beneficial to the smooth development of seedling raising and further promote the development of seedling raising technology.

2.2 Use suitable containers to raise seedlings.

According to different plant varieties and different seedling raising periods, suitable seedling raising containers are adopted to further promote the smooth progress of seedling raising. At present, the common container seedling raising technology has non-woven net loan bag. 20cm×20cm mesh bag can be used for larger seeds, and 6cm× 10cm mesh bag should be used for smaller seeds.

2.3 Seedling container with light substrate

The key of container seedling technology lies in container substrate, which is the basis of seedling growth and development. Container seedling substrate can provide necessary nutrients for seedling growth and development. It is not difficult to see that the substrate of seedling container plays a very important role in seedling growth. At the same time, when selecting the substrate of seedling container, we should strictly follow the principle of low cost and choose the substrate with high drainage performance. In addition, it is best that the seedling substrate has good physical and chemical properties at the same time to fully meet the nutrients needed in the growth process of seedlings. At present, the light-weight substrate seedling container has been widely popularized, and its main components are peat, coke, pig manure and so on. Affected by the size of seedling container, the proportion of seedling substrate is also very different. Therefore, we can add a certain amount of phosphorus or nitrogen to the seedling substrate to meet the nutritional needs of seedlings. In addition, attention should be paid to disinfection in time to avoid large-scale pests, so as to speed up the development of forestry seedling raising.

2.4 Accelerating germination

Accelerating germination is a method to artificially break the dormancy of seeds. By accelerating germination, the germination rate of seeds is further improved, the growth of seedlings is more orderly, the emergence period of seedlings is greatly shortened, and the quality of seedlings is improved. Seed germination should be accelerated according to different dormancy characteristics of seeds. There are many reasons for seed dormancy, including that the seed epidermis is hard or there is a thick oil layer, which makes the seed airtight and impermeable, resulting in mechanical obstacles to the seed; Seeds themselves have germination inhibition factors, and seeds cannot fully develop and mature. Most seeds can germinate directly by stratification. It is more effective for seed dormancy affected by germination inhibition factors of seeds themselves. Therefore, according to different temperatures, germination can be divided into low temperature germination, variable temperature germination and high temperature germination to promote the development of forest seedlings.

2.5 sowing

In the process of container seedling raising technology, it is very important to sow correctly, which is related to the survival rate of seeds. Therefore, before sowing, nursery personnel need to prepare 66.6% light substrate in the container and add enough water to ensure the survival rate of forestry nursery seeds.

2.6 seedling raising

Put the container nutrient matrix into a plastic cup and fill it with 1/2. On the basis of formal sowing, first let the seeds germinate correctly, and then sow in each container. One or three seeds should be sown in each container on average, and the covering thickness should be fully considered. It is worth noting that the thickness of the cover is about 6 times the radius of the seed. Once the seeds begin to germinate, the breeder should water the buds in time, but not too much. After the seedling growth period is over, cultivators should master the irrigation amount of seedlings and stop watering them in time when they leave the nursery. At the same time, temperature also greatly affects the success or failure of container seedling raising technology. If the temperature is too high or too low, the seedlings will grow badly and even die. Therefore, cultivators should firmly grasp the temperature of container seedlings and control the temperature through effective methods such as ventilation and greenhouse heating. In addition, fertilization is also an important part of container seedling raising technology. In the actual process of forestry seedling raising, we can choose the fertilization method of base fertilizer as the main fertilizer and topdressing as the auxiliary fertilizer, and add fertilizer to the nutrient matrix to improve the nutrient content of the matrix. Through this method, the performance of nutrient matrix can be effectively improved, and container seedling raising technology can be better developed in forestry seedling raising, further promoting the large-scale development of forestry.

3 Conclusion

To sum up, container seedling raising technology has the advantages of high survival rate and strong mechanization, and is favored by forestry seedling raising in China and widely used. Not only that, container seedling raising technology can also promote the greening construction in China and further develop the forestry production in China.

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