The advantages and disadvantages of the five top dressing methods

Direct application of this method is simple, but some of the fertilizer will volatilize and lose. Especially ammonium bicarbonate is very volatile and cannot be used. Ammonium sulfate, urea and potassium sulfate can be applied but it is only inconvenient in the field. When the crop needs fertilizer and it is more urgent, it should be used.

With the abuse of water, it is more wasteful, easy to lose, nutrition can not reach the deep layers of the crop roots; the advantage is simple to use, save time and labor, labor is not large. When a large area of ​​crops appears severely infertility, it can be used as the top dressing method.

Deep-buried fertilization uses this method to produce less fertilizer and is the most economical, but it requires a large amount of labor, is labor-intensive, and is not easy to operate. Therefore, buried methods are often used at higher temperatures. In order to prevent it from having a negative effect, it must be watered after burial, so that the fertilizer concentration of the buried plant is reduced.

The facility topdresses the fertilizer in a fertilizer applicator and inserts the drip irrigation pipe into the suction pipe filter of the fertilizer applicator, and the fertilizer can automatically enter the soil around the root of the crop with the watering. The advantage is that due to the cover of the plastic film, the fertilizer is hardly volatilized, and there is no loss. Although the fertilizer is concentratedly applied, the concentration is small, so it is safe, labor-saving, and effective. Just because of the large investment, it is difficult to promote the application of large-scale production.

The fertilizers for top dressing fertilizers from the roots are other fertilizers such as urea, potassium dihydrogen phosphate, potassium sulfate, potassium nitrate, and compound fertilizers, and a large number of elements include trace elements or fertilizers containing various amino acids, such as fertilizers. , spray penbao, plant protection factors, etc., have a certain effect. However, it must be explained that the basic nutrients needed for the growth and development of crops mainly come from basal fertilizers and other fertilizers that can be applied in other ways. Extra-root fertilizers can only be used as an auxiliary measure.

2022 New Laser Distance Sensor

At the start of 2022, JRT introduce our customers a batch of new series laser distance measurer sensor(S92-20m, S91, BA6A-150m, BA6A-20Hz, M703A-8Hz, U81-10m etc.). Especially S91(RS485 interface and software Rx Tx protocol) and S92(RS232 interface) ip54 enclosure distance sensor model, custoemrs would like to use it in their industrial automation solutions,according to the ip54 waterproof protection level, well protect laser, Wide Voltage 5~32V(Optimize for industrial using), and easy-to-install.
If you are interested in JRT more laser measuring sensors, or you would like buy qty 2 quotation for trial basis, please welcome to contact us.
Kind regards
JRT Team

Chengdu JRT Main Ranging Modules: Industrial Laser Distance Sensors, Laser Rangefinder Sensor , Tof LiDAR Sensors.

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Chengdu JRT Meter Technology Co., Ltd , https://www.rangingsensor.com