How to apply winter fertilizer to citrus
2024-05-25 11:06:32
After the "living winter", the citrus harvest is completed, and the winter fertilizer is applied in time. It is of great significance for the healthy growth of citrus trees to ensure stable yield, high quality and high yield.
The winter fertilizer after fruit picking is also the citrus base fertilizer, and its fertilizer dosage should account for 50%-70% of the total fertilization amount in the whole year. The significance of Shidongfei is mainly: (1) The citrus plant consumes too much nutrients after harvesting and needs to be supplemented. (2) The organic fertilizer applied to the soil slowly decomposes under the action of microorganisms, which is beneficial to the gradual absorption and utilization of citrus in winter and the weakening of root absorption capacity, so that more organic nutrients are accumulated in the tree for supply. The need for germination and flowering in the spring of next year. (3) The orange trees after harvesting can be restored to the tree as soon as possible. (4) It has good leaf-preserving function, prolongs leaf life and prevents citrus from falling in winter. (5) Conducive to stable and high yield of orange trees and improved quality. (6) greatly enhance the anti-freeze and drought-resistance ability of orange trees. Shidongfei should be based on organic fertilizer. Each adult orange tree is sautéed with 100-200 kg of beef and pigs, 100-200 kg of decomposed turf, 3 kg of cake fertilizer, 4 kg of phosphate fertilizer, 3 kg of potassium fertilizer, and 3-4 of lime. Jin, can also be applied to crops such as stalks, garbage, pond mud and other organic fertilizers, planting cooked beans 3 kg, dry cake 3 kg, phosphate fertilizer 3 kg, urea 1 kg, lime 3-4 kg.
The main methods of fertilization are: (1) Digging an arc or a circular deep groove along the canopy, the depth of the ditch is about 50 cm, and the width of the ditch depends on the amount of fertilizer, and the roots are cut. When digging trenches, the surface layer and the subsoil should be piled separately, and organic fertilizers such as cow manure, turf, and dried cake should be applied to the lower layer, and nitrogen fertilizer should be placed on the upper layer. Trees with thick green leaves or large amounts of fruit should be appropriately added with phosphorus and potassium fertilizers. Trees with weak performance should increase the available nitrogen fertilizer appropriately. In the flat ditch, first enter the more fertile topsoil and fill the subsoil on the surface. (2) Radiation ditch fertilization. According to the size of the crown and 4-6 in the direction of horizontal root growth, the bottom of the groove is shallower near the trunk, and the extension to the crown projection is deeper. With this method, the fertilizer distribution surface is wider than that of the annular groove, and the fertilization site can be replaced every year, the fertilization surface can be enlarged, and root absorption can be promoted, which is especially suitable for adult citrus orchards. The application time of winter fertilizer is applied at the latest in mid-December. It is best to carry out two external top dressings between the freezing season, and it is better to spray 0.4% urea plus 0.3% potassium dihydrogen phosphate.
The winter fertilizer after fruit picking is also the citrus base fertilizer, and its fertilizer dosage should account for 50%-70% of the total fertilization amount in the whole year. The significance of Shidongfei is mainly: (1) The citrus plant consumes too much nutrients after harvesting and needs to be supplemented. (2) The organic fertilizer applied to the soil slowly decomposes under the action of microorganisms, which is beneficial to the gradual absorption and utilization of citrus in winter and the weakening of root absorption capacity, so that more organic nutrients are accumulated in the tree for supply. The need for germination and flowering in the spring of next year. (3) The orange trees after harvesting can be restored to the tree as soon as possible. (4) It has good leaf-preserving function, prolongs leaf life and prevents citrus from falling in winter. (5) Conducive to stable and high yield of orange trees and improved quality. (6) greatly enhance the anti-freeze and drought-resistance ability of orange trees. Shidongfei should be based on organic fertilizer. Each adult orange tree is sautéed with 100-200 kg of beef and pigs, 100-200 kg of decomposed turf, 3 kg of cake fertilizer, 4 kg of phosphate fertilizer, 3 kg of potassium fertilizer, and 3-4 of lime. Jin, can also be applied to crops such as stalks, garbage, pond mud and other organic fertilizers, planting cooked beans 3 kg, dry cake 3 kg, phosphate fertilizer 3 kg, urea 1 kg, lime 3-4 kg.
The main methods of fertilization are: (1) Digging an arc or a circular deep groove along the canopy, the depth of the ditch is about 50 cm, and the width of the ditch depends on the amount of fertilizer, and the roots are cut. When digging trenches, the surface layer and the subsoil should be piled separately, and organic fertilizers such as cow manure, turf, and dried cake should be applied to the lower layer, and nitrogen fertilizer should be placed on the upper layer. Trees with thick green leaves or large amounts of fruit should be appropriately added with phosphorus and potassium fertilizers. Trees with weak performance should increase the available nitrogen fertilizer appropriately. In the flat ditch, first enter the more fertile topsoil and fill the subsoil on the surface. (2) Radiation ditch fertilization. According to the size of the crown and 4-6 in the direction of horizontal root growth, the bottom of the groove is shallower near the trunk, and the extension to the crown projection is deeper. With this method, the fertilizer distribution surface is wider than that of the annular groove, and the fertilization site can be replaced every year, the fertilization surface can be enlarged, and root absorption can be promoted, which is especially suitable for adult citrus orchards. The application time of winter fertilizer is applied at the latest in mid-December. It is best to carry out two external top dressings between the freezing season, and it is better to spray 0.4% urea plus 0.3% potassium dihydrogen phosphate.
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