Dongkui Yangmei Fertilization and Management Technology

Yangmei is a specialty fruit of China, with many varieties, among which Dongkui Yangmei is the most famous and has very good varieties. However, in the planting process of Dongkui Yangmei, if fertilization and management techniques are not used to keep up, it is easy to affect the performance of the results. Here is a brief introduction to the introduction of Dongkui Yangmei's fertilization and management techniques, in order to obtain stable and high yield.

Dongkui Yangmei Fertilization and Management Technology I. Dongkui Yangmei Fertilization Method The fertilization methods mainly include soil fertilization and root dressing. Soil fertilization includes ring fertilization, acupoint application (mainly used when organic fertilizer is used), application, and radioactive fertilization. Top dressing is mainly a method of supplementing nutrients through leaves in addition to soil fertilization. It is generally used to supply trace elements and is used when foliar fertilizers and growth regulators are used. Dongkui Yangmei fertilization should fully grasp the basic principle of tree fertilization, and what is missing, in order to make Dongkui Yangmei grow normally and achieve high yield and high quality. 1. Ordinary (normal growth) Dongkui Yangmei fertilization: young tree (within 3 years) fertilization time is generally in the growing season (April-September), can be applied once a month, master thin fertilizer, a small number of times In principle, the amount of fertilization is 1 time for organic fertilizer, which can be applied once every 10kg/plant. The fertilizer is applied 50~100g/plant every time, which mainly promotes the rapid formation and results of canopy. The fertilization time of adult trees is mainly pre-flowering fertilizer (from November of the current year to January of the next year), fruit swelling (from the end of April to the beginning of May), and post-harvesting fertilizer (from the end of June of the same year to the middle of January of the next year).

2. Fertilization of special bayberry trees: mainly look at the canopy, look at the amount of flowers, look at the area, look at the soil, and look at the direction for fertilization. First, determine the amount of fertilizer applied according to the size of the crown. Generally, the fertilization amount is mastered when fertilization is applied. The organic fertilizer (grass ash or decomposed stalk) 10~15kg/strain, or the chemical fertilizer (complex fertilizer or potassium sulphate) 1.0~1.5kg/plant, with the canopy diameter of 4m, other trees according to the canopy size Appropriate increase or decrease. The second is to combine the amount of flowers (results) for fertilization. The amount of flowers can be appropriately applied in advance in time, and the appropriate delay is less when the amount of flowers is small (the fruit is swollen around May 1). The third is to look at the region. Under normal circumstances, Dongkui Yangmei fruit begins to mature in the area around the 1st of the 7th, and does not apply fertilizer after the sputum (to be applied to the tree to fertilize, the result is more, the tree is weak, others are not allowed to apply) Generally, the fruit is mainly made up of large fertilizer (potassium sulphate is mainly used, and compound fertilizer can be used for one year in 4 years), and the amount of fertilizer before flowering is good. Dongkui Yangmei began to mature on June 15 and ended at the end of the mature period at the end of June. Generally, the fruit-harvesting was mainly used, and the fruit was fertilized and the fertilizer was applied less. When fertilizing, apply more on the top of the steep slope, less on the lower side, and apply evenly around the flat. The fourth is to look at the soil to determine the amount of fertilizer applied. If the soil layer is deep and fertile, it can be appropriately applied less. The shallow soil fertility of the soil layer can be appropriately applied, the clay is less applied, and the sand is applied more. The fifth is to look at the amount of fertilization. To the southwest slope, there are many applications, and the northeast slope is less. It should be noted that the initial results tree flower quantity is not fruitful, and it is not allowed to apply fertilizer. If the adult tree has more than 15 years of flowering, it is necessary to apply the fertilizer before the flowering, and the organic fertilizer is mainly used, and the appropriate amount of potassium fertilizer is added. The tree is strong to strengthen the combination of pruning and controlling the shoots, no nitrogen fertilizer, and strengthen pest control. The control shoots generally combine the paclobutrazol with the soil application, the 250-300 times solution for the paclobutrazol spray, and the 5~7g/m2 for the soil. The tree strength is appropriately increased or decreased. This tree does not apply nitrogen fertilizer, mainly potassium fertilizer. Appropriate amount of phosphate fertilizer and trace elements, fertilization time from the end of April to the beginning of May, once a year can be applied. If the tree is weak and does not bloom, the imported compound fertilizer should be applied. It should be applied around May 1 and strengthen management. The combination of control, pruning, pest control can only result in the next year.

Second, the management technology of Dongkui Yangmeishu 1. Adjusting vegetative growth and reproductive growth: How to convert vegetative growth into reproductive growth is the premise of high yield of bayberry, which is closely related to fertilization and pruning, and what fertilizer can be used to adjust vegetative growth. The conversion to reproductive growth (mainly based on potassium fertilizer, control of shoots, the use of nutrient solution and the combination of phosphorus and trace elements), pruning can open the canopy, ventilation and light, branches oblique, can also promote reproductive growth. Therefore, only when reproductive growth predominates (more than 80%), vegetative growth accounts for a small amount (less than 20%), and nutrition is very sufficient, high yield can be achieved. After the result, combined with fruit thinning, stable production can be achieved, combined with the use and disease of nutrient solution. Insect control can produce high yields. 2. Implement “upper, middle and lower” management: “below” to “apply enough fertilizer”. Apply fertilizer at the right time, maintain adequate nutrition, master the time and method, and only have sufficient fertility (nutrition), and the bayberry can bear the result. "Up" should "press the branches". Mainly master the time of spring, summer and autumn control to get the result, the general control time is about 10cm for spring shoots, 5~8cm for summer shoots, and when the autumn shoots just emerged, generally use 15% paclobutrazol 250~300 times liquid control Tip. "Medium" should "force out flower buds" and combine flower pest control, pruning, fertilization and other measures to raise flower buds.

Doing a good job in the fertilization and management of Yangmeishu is the key to achieving stable and high yielding of Dongkui Yangmei planting, which is of great concern to the farmers. In the above, we introduced the fertilization and management technology of Dongkui Yangmei, hoping to help everyone!

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