At present, in some of the main fruit-producing areas, fruit growers are still adopting some unreasonable fertilization methods in their production. “One shot†is one of them. The so-called fertilization “one shelling†refers to the one-time application of organic fertilizer and inorganic fertilizer in the fall to fruit trees. Fertilization of fruit trees cannot be “one-shelledâ€, and this method of fertilization does not meet the annual requirement of fruit trees.
Generally, the north deciduous fruit tree is a crop with long growth cycle. The absorption of three main elements nitrogen, phosphorus and potassium can be considered as the peak period of nitrogen absorption in spring and the absorption of potassium before fruit expansion after fruit set and before harvest. During the peak period, the absorption of phosphorus was relatively flat during the anniversary and there was no obvious peak period. Just looking at the characteristics of this fertilizer requirement, it is not appropriate to apply the inorganic fertilizer at one time to apply fruit trees once. For example, in the fall, if nitrogen and potassium fertilizers needed for fruit trees are blended with organic fertilizers once in a year and applied at a time, and this is not the peak period of nitrogen and potassium absorption in fruit trees, the applied nitrogen and potassium are for fruit trees. Excessive, inorganic nutrients that cannot be used in fruit trees are bound to be fixed or lost in the soil, and nitrogen or potassium may be insufficient in the fruit trees during the peak period of nitrogen requirement or potassium demand. For fruit trees, for every hundred kilograms of fruit produced, there is a scientifically determined proportion of nitrogen, phosphorus, and potassium that is absorbed. Based on this ratio, the rate of absorption and loss of fertiliser can be considered, and a variety of inorganic substances can be given. The amount of fertilizer applied. However, this amount of fertilizer is not the amount that is applied to fruit trees at one time, but refers to the amount of fertilizer that fruit trees use throughout the year. Fertilization of fruit trees should be based on the characteristics of the nutrient requirements of the amount of fertilizer and fruit trees in different periods of the year, and fertilizers of different compositions should be mainly applied in stages.
Some fruit growers fertilize the "one bombardment" by confusing the characteristics of organic fertilizers with the characteristics of inorganic fertilizers. Organic fertilizers are generally required to be applied once after the fruit is harvested because the organic fertilizer has a relatively long-lasting fertilizer effect. The main purpose of the application is to improve the soil environment. Inorganic fertilizers are characterized by quick effect and short duration. It is best to apply them in different times according to the requirement of fertilizer requirements in different periods of fruit trees.
Generally, the north deciduous fruit tree is a crop with long growth cycle. The absorption of three main elements nitrogen, phosphorus and potassium can be considered as the peak period of nitrogen absorption in spring and the absorption of potassium before fruit expansion after fruit set and before harvest. During the peak period, the absorption of phosphorus was relatively flat during the anniversary and there was no obvious peak period. Just looking at the characteristics of this fertilizer requirement, it is not appropriate to apply the inorganic fertilizer at one time to apply fruit trees once. For example, in the fall, if nitrogen and potassium fertilizers needed for fruit trees are blended with organic fertilizers once in a year and applied at a time, and this is not the peak period of nitrogen and potassium absorption in fruit trees, the applied nitrogen and potassium are for fruit trees. Excessive, inorganic nutrients that cannot be used in fruit trees are bound to be fixed or lost in the soil, and nitrogen or potassium may be insufficient in the fruit trees during the peak period of nitrogen requirement or potassium demand. For fruit trees, for every hundred kilograms of fruit produced, there is a scientifically determined proportion of nitrogen, phosphorus, and potassium that is absorbed. Based on this ratio, the rate of absorption and loss of fertiliser can be considered, and a variety of inorganic substances can be given. The amount of fertilizer applied. However, this amount of fertilizer is not the amount that is applied to fruit trees at one time, but refers to the amount of fertilizer that fruit trees use throughout the year. Fertilization of fruit trees should be based on the characteristics of the nutrient requirements of the amount of fertilizer and fruit trees in different periods of the year, and fertilizers of different compositions should be mainly applied in stages.
Some fruit growers fertilize the "one bombardment" by confusing the characteristics of organic fertilizers with the characteristics of inorganic fertilizers. Organic fertilizers are generally required to be applied once after the fruit is harvested because the organic fertilizer has a relatively long-lasting fertilizer effect. The main purpose of the application is to improve the soil environment. Inorganic fertilizers are characterized by quick effect and short duration. It is best to apply them in different times according to the requirement of fertilizer requirements in different periods of fruit trees.
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