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Composition and Application of Fertilizer Applicator

Nov. 11, 2020

I. Overview

Establishing a reasonable fertilizer application system is a means to achieve the purpose of reducing fertilizer and pesticide application and increasing efficiency, and is an important guarantee for achieving high yield, high efficiency and safety in agriculture. Scientific fertilization technology and fertilization equipment are the main content of the establishment of fertilization system. Effective and accurate fertilization equipment not only reduces the dependence on manpower for chemical fertilizer application, but also provides a technical guarantee for the scientific fertilization technology system to take root.

Agricultural fertilizer spreaders are agricultural machinery that uniformly spread chemical or organic fertilizers on the soil surface by mechanical means and release them to a certain depth below the ground surface in strips. According to different application objects, it can be divided into granular fertilizer fertilizer applicator, powder fertilizer fertilizer applicator and organic fertilizer applicator; according to whether it is necessary to hook a tractor, it can be divided into tractor-type fertilizer applicator and self-propelled fertilizer applicator; according to the key mechanism of fertilization The difference can be divided into disc type and conical disc type, radial blade and non-radial blade type.

Farm Fertilizer Spreader

Farm Fertilizer Spreader

2. Basic principles and composition

Whether it is a chemical fertilizer applicator or an organic fertilizer applicator, the most important key components are the fertilization component and the fertilization component. The fertilizer discharging part is used to deliver fertilizer from the fertilizer box at a fixed rate and quantitatively, and the fertilizing part is used to release the fertilizer to the soil surface or the soil in a required manner.

The principle of the fertilizer discharging mechanism mainly includes grooved wheel type fertilizer (usually used in granular fertilizer applicator, seed fertilizer and top dressing), sprocket conveying fertilizer (usually used in large organic fertilizer applicator, basal fertilizer), impeller fertilizer (common Used in powder fertilizer applicator and small traction organic fertilizer applicator) etc.

The principle of fertilization components mainly includes fertilization tube fertilization (usually used in granular or powdered fertilizer applicators, fertilization and top dressing), horizontal disc type/cone disc type and radial blade type/non-radial blade type ( Commonly used in organic fertilizer spreader and chemical fertilizer spreader, basal fertilizer).

The amount of fertilizer application can generally be adjusted by the size of the opening above the sheave wheel, the speed of the sheave wheel, the opening size of the bin, the speed of the sprocket, the speed of the impeller, etc., and the spreading distance and uniformity in the case of throwing Factors such as the length of the blade and the speed of the disc are related. When replacing fertilizer, the machine should be debugged before the formal operation to confirm whether the amount of fertilizer is appropriate. Some strip spreaders are also equipped with fans, and the establishment of the air flow field in the fertilization pipe effectively reduces fertilizer clogging and improves the uniformity of fertilization.

In addition, in conjunction with other agricultural machinery, the farm fertilizer spreader can also complete multiple operations, that is, complete multiple processes in one operation. For example, the strip fertilizer applicator is often used in conjunction with rotary tillage components, ditching components, and even sowing components. Theoretically, the rotary tiller shaft, ditching components, fertilization tube, seeding tube, and pressure roller are arranged in the forward direction of the machine. Goodland completes the three operations of rotary tillage, fertilization and sowing at one time, but usually the situation of rotary tillage + strip application, strip application + seeding is more common; if the fertilization pipe, rotary tiller shaft, and ridge are arranged in the forward direction of the machine For components and rollers, the three links of rotary tillage, base fertilizer application, and ridge formation can be completed in one lesson, and the transplanting process can be started immediately afterwards. However, due to the relatively long flight process and time of the fertilizer during the operation of the sprayer, and the long landing distance, it is usually not easy to realize the compound operation. The fertilizer is on the surface of the soil, and the rotary tiller and ridger are often required to work again to complete the whole site preparation link.


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