First, the radiation ditch or ring ditch method: the radiant ditch method, excavating outward from the trunk 50 cm, the narrow outer width, the shallow inner (30 cm ) outer depth (40 ~ 50 cm ) , the groove length extends beyond the crown projection 20 cm, 4 to 6 per ditch . The groove is excavated at the canopy projection, 50 cm wide and 40 to 50 cm deep . Both methods are to spread the fertilizer evenly and mix it with the soil to avoid burning roots. After the application, the soil is covered with water, or it can be applied after the rain . Â
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Second, the whole garden is spread: This method is suitable for the root system when the whole garden is covered. Fertilizer uniformly sprinkled Park, buried in turn, by applying this method to give a pale (about 20 cm), easily lead to root floating, reducing the resistance to adverse environmental Root. It is best to use it alternately with the radiant trench method or the ring trench method. Â
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Third, the hole storage fertilizer water: in the outer edge of the canopy digging deep 35 cm, diameter 30 cm points, add a diameter of 20 cm, 30 cm high grass handle, 5 cm below the ground , into the hole, and then fill the nutrient solution 4 kg. The number of holes depends on the size of the canopy. Generally, each tree is dug 4 to 6 holes, then the mulch is covered, and a small hole is poked in the center of the hole, fertilized ( dissolved with water ) , and watered through small holes. Usually sealed with stones to prevent evaporation, because the hole is 5 cm below the ground ; when the rain is open, the rainwater can be circulated into the hole. If it does not rain, 4 to 5 kg of water is poured every 20 days, and the water is stopped after the rainy season. Compared with the general soil topdressing method, half of the fertilizer can be used less , which is economical and effective, and has a large yield increasing effect. In the cultivation of protected areas, it should be promoted. Â
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Fourth, foliar topdressing: Foliar topdressing is an effective auxiliary fertilization method in the growing season. It has the advantages of quick labor absorption, uniform distribution and high utilization rate. 1 The concentration of suitable cherry foliar spray fertilizer is: the use of urea is thick The degree is 0.3% . Ammonium phosphate and potassium phosphate are used in concentrations of 0.5% to 1% . Potassium chloride and potassium nitrate were used at a concentration of 1% . 2 spraying period and application time: from the cherry tree leaf to the leaf stop growth It can be used before, and it can be supplemented in time during the critical period when cherries need fertilizer. Summer is suitable to be carried out before 10 o'clock and after 16:00 , so as to avoid evaporation and cause phytotoxicity. â‘¢ spraying times: typically every 15 to 20 days, spray, spraying pesticides may be combined simultaneously Carry out and spray the fertilizer together in the pesticide. 4 Usage: The fertilizer can be directly added with water according to the required concentration. After dissolving, it can be sprayed. Foliar spray to focus on the back, because the back of the leaf horny little, easy to absorb when spraying.Elevator Rope Gripper,Rope Gripper For Elevator,Best Rope Gripper For Elevator,Elevator Rope Gripper For Sale
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