Eucalyptus planting techniques what are the special fertilizers for eucalyptus trees

Eucalyptus is a common tree species, which is still relatively common in our lives. Because eucalyptus is widely used, and many people have obtained great economic benefits by planting eucalyptus. However, in order to obtain good benefits, this is very related to everyone's planting technology. How should eucalyptus be planted? Let's find out together.

Eucalyptus planting technology

1. Soil preparation and fertilization: usually manual, mechanized soil preparation has been greatly promoted, and it has obvious effect on improving the efficiency and effect of soil preparation. However, it also has a certain impact on the ecological environment of eucalyptus forest, and many beneficial organisms are eliminated in the process of eliminating weeds. At the young stand stage, soil preparation can increase the conversion rate of soil fertilizer, reduce the growth resistance of roots, and thus improve the growth speed of seedlings.

2. Planting density: Planting density has a very important effect on the final yield of eucalyptus, while digging determines the final planting density. When digging pits, the pit spacing should be determined according to the planting years and variety growth characteristics of fast-growing eucalyptus, so as to ensure that eucalyptus has reasonable permeability during growth, and to avoid wasting soil fertility due to too small planting density. Usually, the pit density can be 3 meters ×2 meters in row spacing.

3. Timely planting: After soil preparation and implementation of base fertilizer, it is necessary to choose the appropriate planting time. Spring suitable temperature, abundant rain, eucalyptus seedlings survival rate is higher, is the ideal time for afforestation. In planting, first of all, we should select healthy seedlings, and carry out disease prevention and pest control treatment, keep seedlings moist, and do bag removal, deep planting and compaction during planting. Thereafter, supplementary planting should be carried out according to the survival rate of eucalyptus seedlings.

4, cultivation management: according to the seedlings in the successful planting of 3-6 months, the growth is still weak, in order to ensure that the seedlings can have sufficient light and nutrients, pay attention to remove weeds, to avoid competition with the seedlings growth elements, and spring is the weed growth season, weeding is a must work. At the same time, in order to ensure the release of soil fertility, it is necessary to loosen the soil. During the operation, attention should be paid to keeping a certain distance from the root of the sapling to avoid damaging the end of the root.

5. Reasonable topdressing: Eucalyptus needs more fertility in the first 3 years, and the first topdressing can be carried out 40 days after the first fertilization. If the nitrogen content in the early fertilization is more, the first topdressing time can be postponed appropriately. Later topdressing should be based on eucalyptus growth, especially crown closure degree to determine topdressing timing and topdressing amount. In addition, timely weeding should be carried out to avoid competition for fertility among weeds in the forest.

What are the special fertilizers for eucalyptus?

During the growth of Eucalyptus trees, each plant absorbs about 36g N, 2085g P, 20g K, 31g Ca, 8.5g Mg and 4g S from soil every year. The proportion of different nutrients is N> K> P, Ca> Mg> S. It is proved that eucalyptus needs to supplement and absorb many kinds of middle and trace mineral elements besides nitrogen, phosphorus and potassium, and boron, zinc, iron, copper and manganese are less needed.

Although Eucalyptus has a very small total requirement for trace elements, it plays a great role in the growth and rapid growth of Eucalyptus. If these trace elements are not supplemented properly when Eucalyptus is planted, the young parts of trees such as roots, root tips and stem tips will suffer first, and when it is serious, the growth point will be necrotic, lignin formation will be hindered, and the yield will be reduced.

How to fertilize eucalyptus

1. Base fertilizer: 7 days before planting eucalyptus, apply compound fertilizer or eucalyptus fertilizer 0.25-0.5 kg per hole, apply fertilizer into the hole, and backfill a layer of topsoil 1-2 cm thick.

2, topdressing: Eucalyptus planted 1 month or after the young tree grows 1 meter, start topdressing, each plant fertilizer or eucalyptus fertilizer 0.25 kg, promote eucalyptus early growth and rapid hair. In the second year, topdressing is applied once in March and April, and compound fertilizer or eucalyptus special fertilizer is applied to each plant by 0.5 kg. In the third year and the fourth year, topdressing is applied once respectively, and compound fertilizer or eucalyptus special fertilizer is applied to each plant to promote the rapid growth of eucalyptus, which can be cut down in 4-5 years, and the timber yield per mu can reach 6-8 cubic meters.

Eucalyptus pest control

Eucalyptus seedlings are prone to scorch and bacterial wilt, and must be prevented and controlled:

1, choose the nursery land: nursery land should be located in the air circulation, should not be closely inserted.

2, strengthen management: control seedbed moisture. Summer appropriate shade, grass cover to reduce soil temperature, appropriate fertilizer, promote seedling growth to improve disease resistance. In the summer of high temperature and humidity, 0.5-1% Bordeaux mixture or 75% chlorothalonil 600-800 times solution should be sprayed once a week to protect seedlings. Cuttings of cuttings to be disinfected, generally with 0.2-0.3% potassium permanganate soak for 6 hours, and then washed with water, before inserting nutrition bags.

3, and into the treatment of sick plants: found sick seedlings, should be removed, and 0.2-0.3% potassium permanganate spray seedlings to inhibit the disease to continue to expand. Wash seedlings with clean water after spraying.

Eucalyptus planting technology on the content of the first introduced here, I hope to help everyone, eucalyptus trees grow very fast, and its planting benefits are also very high, there are ideas friends can carefully consider.