Problems to be aware of when purchasing fertilizer

There are many varieties of chemical fertilizers, and counterfeit and shoddy products are also flooding the market. Therefore, farmers must pay attention to the purchase of fertilizer. Here are some simple ways to identify them:
Packing material: the outer bag is a plastic woven bag, the inner bag is a high-density or low-density or modified polyethylene film bag (only the vinyl ammonium inner bag can be used as a polyvinyl chloride film bag), or a 2-in-1 composite bag (plastic weaving) Cloth/film), but ammonium bicarbonate is not packed in a composite bag. For example, in a composite bag, calcium magnesium phosphate and ammonium nitrate should be packed in three-in-one bags (plastic woven bags/film/kraft paper), and calcium magnesium phosphate can also be used in cloth/paper two-in-one bags (plastic woven bags/kraft paper). Any packaging material that does not meet the above requirements may be a counterfeit product.

The mark on the bag: the package name should be marked with fertilizer name, nutrient content, grade, net weight, implementation standard number, manufacturer name, site, and some fertilizer registration certificate, production license number, etc. If the above logo is not or incomplete, it may be a counterfeit product. If it is bulk fertilizer (superphosphate, phosphate rock, etc.), because its nutrient content can not be identified from the outside, to obtain the factory quality assurance, it is best to send the quality inspection department to check and then purchase according to the quality. Also pay attention to whether the packaging is intact, such as the discovery of unpacking marks, re-sealing signs or the use of old packaging, generally do not buy. The names of fertilizers cannot appear such as “××王”, “××晶(精精)”, “××宝”, “××灵”.

In addition, when purchasing compound fertilizer, attention should also be paid to the net content of the product, the total nutrient content, and the contents of nitrogen, phosphorus and potassium, respectively.

The nutrient content mainly refers to the content of nitrogen, phosphorus and potassium. If medium elements (sulfur, calcium, magnesium, sodium) or trace elements (copper, zinc, iron, manganese, molybdenum and boron) are added to the product, they should be separately marked. The content and total content of the elements, the content and total content of each trace element. Nitrogen + phosphorus + potassium + sulfur + calcium + magnesium + sodium + copper + zinc + iron + manganese + molybdenum + boron ≥ 58%, 85% and other standard methods are not allowed.

Products based on phosphate-phosphorus fertilizers such as calcium, magnesium and phosphate fertilizers should be marked as “soluble phosphorus”. If the product contains nitrate nitrogen, it should be marked "nitrate containing nitrogen" on the packaging vessel. If the mass fraction of chloride ion in the product is greater than 3.0%, “chlorine” should be indicated on the packaging container.

When there is an additive in the product within the net content range of each bag, it must be evenly mixed with the original material, and should not be put into the bag in a small package.

In addition, attention should be paid to retaining the fat purchase certificate: the purchase certificate is an invoice or a small ticket, and the name, quantity, grade or content, price, etc. of the purchased fertilizer should be indicated in the ticket. If the distribution unit refuses to issue a certificate of purchase of fertilizer, the farmer may report it to the agricultural administrative law enforcement department or the industrial and commercial administration department.

If you buy more than half a ton of fertilizer, it is best to leave a bag unopened as a sample, and wait for the crops to be harvested after the crops are harvested.
From: Hubei Provincial Department of Agriculture

Peristaltic Pump Head

For different application scenarios of customers, our R&D department independently designed and developed a variety of Peristaltic Pump heads with different sizes, different appearances, different flow rates, and different types. Support the customization of the number of pump head rollers and the installation shaft. It can be used with the customer's motor and drive. The Peristaltic Pump Head of the peristaltic pump can be customized with different pump head connection brackets and so on according to the needs of customers.
The pump head of the peristaltic pump can be purchased separately or together with our driver or motor.
Different Peristaltic Pump Head has a different flow rate.
The liquid filling of the Peristaltic Pump Head only passes through the hose, does not touch the pump body, and has no valves or seals and other connecting parts. Routine maintenance only requires regular replacement of the hose, which reduces the maintenance cost of the user.

Micro Flow Pump Head,Multichannel Pump Head,Industrial Pump Head,Peristaltic Pump Heads

Baoding Chuangrui Precision Pump Co., Ltd. , https://www.crperistalticpump.com