Look at the tree: Look at the tree potential: The amount of fertilizer should be increased for fruit trees with weak vigor. For fruit trees with nutrients, there should be targeted application of medium and trace element fertilizers; differences should be made between young trees and fruit trees. Fertilization. Second, look at the content of soil nutrients: Soil testing through agricultural departments to understand the level of each nutrient content, to make up for lack of supplements, how much less. Third, the target annual production: In general, when the target yield is high, the amount of fertilizer in autumn is correspondingly larger; when the target output is low, the amount of fertilizer is correspondingly less. To determine the target yield, based on the average output of the 3-4 years before the orchard, increase the output by 10%-15% (this method can be used in the orchards entering the stabilization period).
Three elections: First, select fertilizer varieties: Based on the content of available nitrogen, phosphorus, and potassium in the soil and the principle of balance between supply and demand, select a suitable proportion of nitrogen, phosphorus, and potassium compound fertilizer. At the same time, depending on the pH of the orchard soil, fertilizers with different characteristics should be selected. The second is the selection of the amount of fertilizer: based on the soil test, according to how much the fruit tree needs fertilizer, calculate the amount of fertilizer. The third is to choose a good fertilizer method: This is very important in the current orchard production management. The common methods of fertilization include strip groove method, ring groove method, radial groove method, and hole method. In the autumn, fertilization method is suitable for the first two fertilization methods.
Three combinations: First, the combination of organic manure (referring to manure, livestock, poultry excrement, straw, and glutinous manure) and the use of fertilizers; the second is the combination of application of a large number of elemental fertilizers and trace element fertilizers; and third, fertilization and pouring Combination of water.
Foam Fire Extinguisher,Foam Extinguisher,Foam Type Fire Extinguisher,Mechanical Foam Fire Extinguisher
NINGBO TOMAN IMP. & EXP. CO., LTD , https://www.tdotmfiresolution.com