Planting fruit trees often encounters leggy phenomenon, causing a large amount of nutrients to be consumed, and the result can not be flowered as a result of the age of the tree, or the flower production can be reduced.
The reasons for fruit tree growth are mainly the following: First, the reasons for varieties or seedlings themselves, such as peaches, plums, pears, chestnuts and other varieties are very prone to leggy; grafted seedlings rootstock, scion, seedling raising techniques if there are problems will appear to be long. In general, seedlings grown from seeds are easy to grow. The second is the reason for trimming plastic surgery. When the saplings are reshaped, the large branches are left too little or clustered, the nutrients are too concentrated to supply, the collaterals are too few or cut too much, the affiliation of the main lateral branches is not obvious; in the pruning, the summer does not pay attention to the timely control of the tip, to the winter pruning At the same time, short cuts on strong branches and too many cuts on small branches can also cause leggy. The third is improper fertilization. During the saplings, partial application of nitrogen fertilizers, fertilizers or large fertilizers, and the application of organic fertilizer is very few, do not pay attention to the combination of phosphorus and potassium fertilizer, but also cause leggy.
To prevent the fruit trees from growing in length, grafted seedlings should be planted and no seedlings should be planted. Seedlings are easy to grow, and the flowering results are late. The root stocks of grafted seedlings should be selected from the native soil dwarf type. Rootstocks with developed main roots and few lateral roots should be cut off during the transplant, or the long main roots must be twisted one turn, which can promote lateral roots. The scions should be selected from the adult mother trees that have been prolific in production, and the scions should be selected from the branches that are sunny in the middle, robust and free from pests and diseases. Do not take branches from young plants that have not been fruited for scion. When planting, the main root of the seedlings is appropriately shortened to promote the growth of lateral roots, and the plants are not easy to grow.
In pruning and shaping, summer topping should be the main method, supplemented by winter cutting, and it can also be controlled by measures such as pulling, bending, and twisting on leggy branches; in winter pruning, long branches should be lightly cut and moderately short. Cut some of the main branches of the extension of the branch; in the plastic surgery, the strong branches to extract the branches should be appropriate to stay more, side branches should also stay as a result of the branches, fruit control shooter long, lower branches can advance results, as long as no mopping should be retained .
For Wangshu, by cutting off the long main branch, ring cutting branches and other measures, you can also control the leggy; new shooters long, through the spray than a long time, paclobutrazol, chlormequat and other growth regulators, inhibit shoots leggy.
In fertilization, we must pay attention to applying organic fertilizer. When the sapling reaches the late stage of growth, nitrogen fertilizer and water and fertilizer must be controlled, and phosphorus and potassium fertilizers must be added. Too much water in the orchard should be well drained. If necessary, roots, roots, and even roots can be removed.
Another important function of amino acids is to provide energy to the human body. Normally, a healthy body on a general diet will use carbohydrates as its main fuel, but when the main source is depleted due to strenuous exercise, protein and amino acids can be used as a last resort. Amino acids also play an important role in food taste. Protein doesn't have much taste, but each amino acid has its own taste, and combining them is one of the important factors that define the taste of food
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