1. Fertilization period: According to the growth dynamics of the root cycle of the ramulus species, the first peak of the root growth is from early October to early November. Therefore, the basal fertilizer should be applied to the soil in October and can be used as root growth nutrient to make the root system. Strong and developed, it can also be used for flowering, spring shoot growth and young fruit enlargement in the second year. At present, many Meinon farmers apply basal fertilizers in the spring, and the fertilized materials are not decomposed until they reach the spring shoots and flowering season. Spring shoots and young fruit are difficult to absorb to nutrition.
Second, fertilizer types and dosage: used as basic fertilizer fertilizer types, there are livestock manure, cake fertilizer, compost, etc., each Yangmeishu (plant 50kg) commonly used manure 10-5kg or compost 15-20kg or cake fertilizer 1-2kg, in addition Can add a small amount of biological fertilizer to better play fertilizer effect.
Third, the application method:
1, adult tree. The ring fertilization is generally adopted, that is, with the trunk as the center, the ring groove is dug by the size of the crown, the depth of the groove is 20-30 cm, and the soil is covered after the fertilization. Due to the wide extension of root system of Yangmei large trees and the limited amount of fertilizer, in order to better exert the effects of fertilizers, the application of fertilizers can be concentrated, and cavernous or radial fertilization can be used. The hole-like fertilization uses the trunk as the center and balances the arc or line around the canopy, digging 5-6 points. The size and depth of the hole depends on the amount of fertilizer used and the size of the canopy; you can also use the trunk as the center to dig 5- 7 radial trenches, 70-80cm long, 30-40cm wide and 30cm deep, covered with soil after fertilization.
2, young tree. The use of disc-shaped fertilization is more appropriate, that is, using the trunk of bayberry as the center, the soil is discarded. The size of the fertilizing tray is equivalent to the canopy, and the depth is 20-30cm. The piled-out mound is around the plate, after fertilization. Cover the soil again.
Fourth, note:
1, the application of organic fertilizer should be decomposed, without the decomposition of organic fertilizer is prone to attract termites and other pests.
2. When using organic fertilizers, it is not allowed to use banned pesticides such as carbofuran.
3, bayberry as a root system, the application of basal fertilizer should pay attention not to hurt the root too heavy.
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