Management and maintenance techniques of Torreya grandis

Torreya grandis, commonly known as concubine tree, is a native tree species in China, and it is also a rare economic tree species in the world, mainly growing in the humid environment of the south. Mainly distributed in Anhui, Zhejiang and other areas of China, Torreya grandis is grafted from wild Torreya trees. With the discovery of nutritional value, the economic value is getting higher and higher, and it has become a poverty alleviation project in Anhui and Zhejiang. Torreya grandis has three years of growth, there are many problems in the three years, but also need a careful management, here are the management and maintenance techniques needed for planting Torreya grandis.

1. Tending and management

In the first year after planting, the most important thing is to resist drought, cool down and protect seedlings in the high temperature in summer. Torreya grandis is a kind of tree species that is more vulnerable to sunburn, so it is necessary to build a sunshade to shade the tree. The sunshade had better be made of mesh material. Because this can not only shade, but also does not hinder the light transmittance in the shed. Torreya grandis should be prevented from frostbite in winter. During the second tending, some weeds can be used to cover the root of the tree to keep warm. When the weeds are buried in the soil after spring to prevent the occurrence of diseases and insect pests, they can also be used as fertilizers for trees. Trees should be nurtured at least twice a year, once in summer and once in autumn. Can not dig deep to destroy the roots, to prevent soil erosion, in tending can be carried out together with fertilization, as far as possible the use of organic fertilizer.

2. Water and fertilizer management

Torreya grandis in the process of water and fertilizer demand is relatively large, in August every year when the garden for a comprehensive tending work, the method can continue to use the method of acupoint caressing and cutting caressing. Cover the root of the tree with weeds to reduce the phenomenon of water evaporation caused by high temperature in summer. Qualified growers can set up an irrigation system in the garden and spray the needed fertilizer and water through the garden irrigation system, which is best to use drip irrigation. Organic fertilizer should be fully applied at the beginning of spring every year, preferably farm manure, which should be fully mature and buried in the soil.

3. Shaping and pruning

In order to increase the yield of Torreya grandis, shaping and pruning is essential. In order to achieve high yield and high yield of Torreya grandis, we must control the height and branches of Torreya grandis. If the tree grows too high, the demand for nutrition will become higher, and will not be able to bear fruit, wasting fertilizer. Too high will also cause some difficulties in picking, but if the growth is too low, the result rate will decrease again. Therefore, when the Torreya grandis tree is planted, it is necessary to prune the tree properly, and the height of the crown should not be less than four meters and higher than five meters. The crown width is kept more dry, and it is trimmed after molding to cut off the overdense, thin, diseased branches and so on.

4. Loosen the soil and weed

Loosening the soil and weeding is also an essential part of planting Torreya trees. Loosening the soil can make the roots of the trees spread better, but be careful not to cut off the roots when loosening the soil. If the root is cut off, the nutrient absorption of the tree will be affected to a certain extent, and the final yield will be reduced. Weeding is to prevent some weeds from competing with Torreya grandis seedlings for nutrients, water and sunlight. All the soil around the tree can be ploughed once in winter combined with fertilization. Planting some legume crops around can not only improve the permeability of the soil, but also turn it into the soil as fertilizer like weeds.

The above is the management and maintenance technology of planting Torreya grandis, the growth time of Torreya grandis is relatively long, so it needs the patience and carefulness of farmers. Special attention should be paid to the diseases and insect pests that will occur during this period, such as termites, Torreya grandis, etc., which will greatly reduce the yield of Torreya grandis, and can lead to extinction if not treated in time and seriously. For more related information, please continue to follow the pro-agricultural network!