How to fertilize citrus science

Problems in fertilization and principles of fertilization

For the neglect of organic manure application in citrus production and soil improvement fertilization, soil acidification is serious, the area of ​​barren orchards is large, the amount of fertilizer used by farmers is quite different, the amount and ratio of fertilizers, the timing and methods of fertilization are not reasonable, calcium, magnesium, The lack of trace elements in boron, zinc, iron, etc., the serious water and soil loss, and low fertilizer utilization, proposed the following principles of fertilization: (1) Pay attention to the application of organic fertilizers, vigorously develop orchard green manure, and implement orchard straw mulching; (2) ) Orchard with severe acidification, and appropriate amount of acidic soil conditioner such as silicon-calcium fertilizer or lime; (3) According to the soil fertility of citrus varieties and orchards, optimize the amount of nitrogen, phosphorus, potassium fertilizer, application ratio and fertilization period, and specifically add calcium. , Magnesium, boron, zinc, iron and other trace elements; (4) fertilization method to change the whole garden as a concentrated application or ditch; (5) fertilizer and water management and high yield and quality cultivation techniques.

Fertilizer amount and method

(1) Orchards with a yield of more than 3,000 kg per mu: organic fertilizer 2 to 4 m3/mu, nitrogen fertilizer (N) 25 to 35 kg/mu, phosphorus fertilizer (P2O5) 8 to 12 kg/mu, potassium fertilizer (K2O) 20 to 30 Kilograms/acre. (2) Orchards producing 1500 to 3,000 kilograms per mu: organic fertilizer 2 to 4 m3/mu, nitrogen fertilizer (N) 20 to 30 kg/mu, phosphorus fertilizer (P2O5) 8 to 10 kg/mu, potassium fertilizer (K2O) 15 to 25 kg/mu. (3) Orchards with an output of less than 1,500 kilograms per mu: organic fertilizer 2 to 3 m3/mu, nitrogen fertilizer (N) 15 to 25 kg/mu, phosphorus fertilizer (P2O5) 6 to 8 kg/mu, potassium fertilizer (K2O) 10 to 20 kg /mu. In calcium or magnesium-deficient orchards, calcium, magnesium and phosphate fertilizers are used. An orchard that lacks boron, zinc, and iron, 0.5 to 0.75 kg of borax per gram, 1 to 1.5 kg of zinc sulfate, and 2 to 3 kg of ferrous sulfate, mixed with organic fertilizer and applied in autumn; pH

Infusion Pump

Infusion Pump,Medical Infusion Pump,Hospital Equipment Infusion Pump,Hospital Device Medical Infusion Pump

Puyang Degren Medical Equipment Co., Ltd. , https://www.degrenyuwei.com