Phosphate fertilizer is widely used fertilizer in agriculture and can effectively improve the quality of the crop. Size (A significant degree) and the speed of its fertilizing effect depends on the content of the effective pentoxy phosphorus in the phosphorus fertilizer, soil properties, Fertilizers making ways, types of agricultural crops and t. e.
What categories of phosphorus fertilizers exist?
Categories of phosphorus fertilizers can be divided by various aspects, such as their chemical form, source, content, production method and t. e. The common division methods include the following:
Mostly divided into organic phosphorus fertilizers and inorganic phosphorus fertilizers.
Organic phosphorus fertilizers include sea guano, Flour from animal bones and Fish flour.
Inorganic phosphorus fertilizers mainly include superphosphate, Heavy superphosphate, Calcium-magnesium phosphate fertilizers, Powder of phosphorite ore and t. e.
This classification method allows you to divide phosphorus fertilizers into the next three types:
(1) Water -soluble phosphorus fertilizer. Such as ordinary superphosphate, double superphosphate and t. e. Its main ingredient is monocalcium phosphate. Easily dissolves in water, The fertilizer effect is fast.
(2) Citrus frure phosphorus fertilizers. Such as besieged phosphate fertilizers, phosphate fertilizers made of steel slag, Calcium and magnesium phosphate fertilizers, defortorized phosphate fertilizers and t. e. Its main ingredient is dicalcium phosphate. A little soluble in water and soluble in 2% citric acid solution, The fertilizer action is slow.
(3) Insoluble phosphorus fertilizer. For example, bone flour and powder of phosphorite ore. Its main ingredient is tricalcium phosphate. Little solid in water and 2% citric acid solution, It should gradually transform in the soil into monocalcium phosphate or dicalcium phosphate, Before the fertilizer effect comes.
By the production method, it can be divided into wet phosphorus fertilizers and thermal phosphorus fertilizers. They extract phosphates from phosphorite ore through various chemical reactions and process them into fertilizers.
The process of production of wet phosphorus fertilizers usually includes the stage of wet purification of phosphoric acid. Phosphorite ore is processed through acid hydrolysis or dissolution.
The process of production of thermophosphate fertilizers is the heat treatment of phosphorite ore at high temperature, To cause chemical changes to obtain phosphate.
How to make phosphorus fertilizers correctly?
The correct use of phosphorus fertilizers is important for plant growth and development. What can you do, to get the maximum return from phosphorus fertilizers? Firstly, Before making phosphorus fertilizers, it is necessary to conduct soil analysis, To determine the amount of phosphorus in the soil. This will help you determine, Is it necessary to make phosphorus fertilizers and to what volume. Select the appropriate type and shape of phosphorus fertilizer, Based on the results of the analysis of the soil and needs of plants.
Secondly, Phosphoric fertilizers are usually applied to the start of the vegetation period of the plant. This guarantees, that plants will receive a sufficient amount of phosphorus in the early stages of growth. You can also phased fertilizers depending on the life cycle of the plant. Application is carried out by spreading, instillations, patching and other methods. Be sure to distribute it evenly and avoid excessive fertilizers, What can lead to damage to plants.
Different fertilizers and their concentration also affect the crop in different ways.
What should be paid attention to when making phosphorus fertilizers?
Phosphorus fertilizers should be made with minimal contact with the soil. For comparison, phosphorus fertilizers are more suitable for concentrated fertilizer application. For example, strip application and point application. Maximize the likelihood of contact with the root system.
Besides, You need to consider the possibility of combining phosphorus fertilizers with other nutrients, such as nitrogen and potassium. Let the plants achieve the balance of nutrients, which they absorb.
Write down time, The number and place of introduction of each fertilizer. This allows you to track plant growth and optimize future fertilizer plans.
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