Application of trace fertilizer should be careful

One depends on soil fertilization. Different types of trace elements contained in different soils are not the same. Only knowing that a certain element is lacking in the soil can be effectively used to make up a certain element of fertilizer. At present, the soil content can be determined based on the parent material, soil texture, soil acidity and alkalinity. Such as the lack of boron, zinc deficiency, its boron content of less than 0.5 parts per million, containing zinc less than one millionth of a million, it is a lack of fertilizer. Before we can figure it out, we can apply it on a small area and then apply it on a large area. Otherwise, if we hear about what is missing, it may be counterproductive.

Second, we must look at crops applied to different crops on a variety of micro-fertilizer needs are also different, such as rice needs silicon; rape, legumes and other needs of boron; garlic, onions need selenium.

Third, the appropriate application of trace fertilizer is generally used as base fertilizer. 100 ~ 200 grams of boron per mu, or 100 ~ 150 grams of zinc fertilizer, or 100 ~ 250 grams of ferrous sulfate, or 510 grams of copper sulfate, should not abuse.

Laser Rangefinder Sensor

Laser rangefinder module, which has two application, one is mainly designed for long distance range finder, another is for secondary development industrial Laser Distance Sensor, which support ttl/usb/rs232/rs485 adapter output data.

With different range measuring program, JRT laser measure tools module, can satisfy customers` different requirements, 200m, 300m, 500m, 1000m, 1200m, 1500m, 3000m.

We have been in this line for 10 years, with a strong R&D ability and hard working, we are now a leading supplier of Laser Distance Meter modules in China.

Product Specifications:

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