The winter shearing of Chinese wolfberry at that time
After a year of growth, the Chinese wolfberry tree has many branches and a messy crown, and at the same time when new fruit branches are formed, some fruit branches have begun to grow old. Therefore, Chinese wolfberry must be pruned in winter, otherwise it will affect the yield and quality of the following year. By pruning, removing the old and replacing the new, selecting the old eye branches and seven inch branches with strong fruiting power, and cutting off the unproductive branches, it can lay a good foundation for the old eye branches to bear fruit and grow new fruit branches in the following year. In order to manage conveniently, it is necessary to control the height of the tree by cutting the top. The general height of the tree should be controlled at 1mi 8m. There is room in the upper part of the crown to cut short long branches and retain about 20 cm stakes to facilitate branching and replenish the crown. Pruning branches with no reserved value should be cut off from the base. In order to facilitate the soil management of the Chinese wolfberry orchard and not make the fruit on the drooping branches mildew, the branches of the crown base should be cut short at a height of 30 cm from the ground. The thin branches inside the canopy should be removed and the dense branches should be thinned properly to maintain good ventilation and light transmission conditions, which is conducive to the growth and development of the fruit. Trimming is the pruning of the fruiting branches of the crown. The main purpose is to select good fruiting branches and cut off the old branches, needling branches, disease and insect branches, wind-broken branches, crossed branches, overlapping branches and dense squeezed branches. When pruning, the choice of old branches should be decided according to the number of new fruit branches. If there are many new branches, the old branches can retract to the robust branches. Winter pruning should be light rather than heavy, do not cut too much. Because the bud hole with the earliest fruit in the following year is at the top of the branch at 16ml / 50cm, the branch is too short, which directly affects the yield of spring fruit in the following year. In order not to miss the cut, it should be carefully trimmed in one direction around the crown from top to bottom.
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Seedling raising technique of short-spike cutting of Lycium barbarum
Lycium barbarum seedlings raised by short-spike cutting is better than seed propagation, which can not only maintain species character and reduce variation, but also have the advantages of large propagation coefficient, simple operation, high survival rate, quick coming out of nursery and so on. First, the nursery bed preparation for raising seedlings should choose sandy loam with leeward direction and convenient drainage and irrigation. The nursery bed is 1 meter wide and the length depends on the terrain and needs. The nursery bed is covered with 10 cm thick gravel and coarse sand, and the upper bed is covered with a mixture of sifted loess, burnt soil and fine sand, with a proportion of 70%, 20%, 10% and 10 cm thick, respectively.
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Main excellent varieties of Lycium barbarum
Chinese wolfberry is also known as Chinese wolfberry, blood berry, western Chinese wolfberry, Jin Chinese wolfberry and so on. Lycium barbarum has the characteristics of drought tolerance, barren tolerance, salt and alkali tolerance, strong adaptability and reproductive ability, often born on the deep soil banks, hillsides, fields and houses, and its excellent varieties are mainly cultivated from natural hybridization. The varieties planted in Ningxia Hui Autonomous region are relatively stable and widely distributed, and the varieties with higher per unit yield are Ningqi 1, Ningqi 2 and hemp leaf, followed by small hemp leaf wolfberry, yellow fruit Lycium barbarum, white Chinese wolfberry,
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