How to increase the yield of bayberry?

How to increase the yield of bayberry? What are the ways to achieve this? Please introduce the main reasons for the low yield of bayberry. Due to the low yield caused by small old trees, prosperous trees, senescent trees, low-yield trees in mixed forests and low-quality variety trees, the following methods can be used to transform fruit trees to increase yield. The reason for the low yield of the transformation method of the small and old bayberry tree is: because the amount of base fertilizer is small or even not, the planting hole is small, so the root growth is not good; or because of the harm of diseases and insect pests and the climate influence of natural disasters, the tree growth is weak, the crown is small, and the branching ability is very poor, so the number of flowering and fruiting is very small, and the trees with this phenomenon are called small old trees. The transformation methods are as follows: (1) deep ploughing and widening planting holes, adding guest soil for transformation, adding organic fertilizer to promote the formation of soil aggregate structure, so as to improve the ability of soil fertilizer and water conservation, promote the development of roots and branches, and form a tree crown as soon as possible. (2) moderately aggravate the short pruning of backbone branches, promote the germination of hidden buds of red bayberry, improve the structure of the crown, and apply appropriate amount of available nitrogen and potassium fertilizer to enhance the tree potential and make it bear fruit as soon as possible. The reasons for the low yield of the method of red bayberry tree growth and transformation are as follows: due to the deep and fertile soil, or the partial application of nitrogen fertilizer in the soil, and then let it grow naturally, resulting in excessive vegetative growth, a large amount of tree nutrition is consumed on the growth of branches and leaves, and its flower buds are difficult to form or rarely formed. the tree enters the fruiting period late or the yield is very low. The transformation methods are as follows: (1) to control fertilizer and water, especially to apply little or no nitrogen fertilizer, and to increase phosphorus and potassium fertilizer appropriately; (2) to apply paclobutrazol in soil from October to November, and to apply paclobutrazol 0.2 kg per square meter of crown projection area; or from March to April, the crown is sprayed with 700 mg / kg paclobutrazol. (3) in autumn, the root was cut off at the ditch depth of 30 cm near the crown dripping line, and some large branches were treated with spiral ring cutting or upside-down peeling treatment, so as to promote the formation of flower buds and improve the yield and quality. The reason for the low yield of the transformation method of the senescent tree of red bayberry: generally speaking, the economic life of red bayberry is 70-80 years, but due to improper management, or due to the influence of diseases and insect pests and natural disasters, there are many withered branches, few leaves, bald inside, little fruit and so on. It's called an aging tree. The transformation methods are as follows: (1) partial renewal is carried out according to the specific situation of the aging tree. The trunk and main branches were truncated in batches for 2-3 years, leaving the strong branches in the middle and lower parts to erase too many sprouting tillers, so as to facilitate regeneration and rejuvenation. (2) at the same time of renewal, combined with the application of organic fertilizer, loosen topsoil and regenerated mud to promote the growth of new shoots and roots, and restore the crown and yield. (3) pay attention to cut off the big branches of the wound, and apply wax or tarmac to protect the wound to promote its early healing. The reason for the transformation of low-yield trees in red bayberry mixed forest is that the mixed trees around the bayberry tree are tall and too dense, which affects the ventilation and light transmission of the crown, resulting in low yield of bayberry. The transformation methods are as follows: (1) the mixed trees should be thinned properly to improve the ventilation and light transmission conditions of bayberry trees. (2) if mixed with Phyllostachys pubescens, the bamboo whip must be removed because of its strong branching power. 5. Inferior variety tree: due to the poor fruit quality, although the yield is high, it is of little value, so it must be reformed by high grafting method. Click to get more bayberry planting techniques click to get more fruit planting techniques