1, Yangmei young tree fertilization
Sapling fertilization to promote growth, form a tree as soon as possible, early into the result period. Within two years after the planting, the top dressings were topped each year before spring, summer and autumn shoots germinated. Every time a plant is applied, about 2 kg of urine or urea is 0.1 kg, and potassium is 0.2 kg, mixed with water, but urea, human waste and potash should be applied separately.
2. Fertilization of adult trees of bayberry
Myrica rubra has mycorrhiza, can play a role in nitrogen fixation, but in the growth and development, especially the flowering period of the results of the demand for phosphorus and potassium nutrients more, in addition, trace elements also play an important role in boron. Therefore, the rational application of fertilizers facilitates the growth of flowering and results.
The adult bayberry is generally fertilized 2-3 times a year. The first time before sprouting. That is, in 2-3 months, a quick-applicable top-dressing fertilizer is applied. Each tree is applied with ammonium sulfate or ammonium nitrate 0.5-1 kg or urea 0.5 kg, plus potassium sulfate or potassium chloride 2-3 kg or plant ash l0-20 kg. When the young tree or basal fertilization is applied, the fat may not be applied. The second time is after the fruit picking from the end of June to mid July. As a result of flowering and shoot growth consume a lot of nutrients, next 7-8 months is the flower bud differentiation period, so it is very important to timely fertilizer after harvest. The type of fertilizer and the amount of fertilizer applied were the same as those for the first time, and 1 kg of superphosphate was added to each strain to improve the fruit setting rate and yield. However, superphosphate is best applied once every year, and the amount should not be too much, otherwise, excessive fruiting, quality decline, and even bark dehiscence. The third time was basal, which was applied to the soil from autumn to October. The main application of organic fertilizer is chicken dung. In addition, 1-2 times extra-root topdressing were applied before germination and after fruit picking, spraying 0.2% borax plus 0.4% urea plus 0.2% potassium dihydrogen phosphate.
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