Problems needing attention in the selection and purchase of Chemical Fertilizer

Problems needing attention when purchasing chemical fertilizer

Around the Spring Festival is the season for farmers to purchase chemical fertilizers intensively. There are many varieties of chemical fertilizers sold in the market. Various new fertilizers are also listed one after another, such as slow release fertilizer, controlled release fertilizer, slow release fertilizer, stable fertilizer, urea formaldehyde slow release compound fertilizer, humic acid compound fertilizer, alginate coated urea blended fertilizer, alginate compound fertilizer, humic acid compound fertilizer, organic-inorganic blended fertilizer, etc. In order to help farmers buy fertilizers with high quality, reasonable price and satisfactory results, Remind farmers to pay attention to the following issues when purchasing fertilizer:

First, choose the fertilizer with good effect and high credibility in the previous year.

1. Choose soil testing formula fertilizer

It is suggested that farmers should give priority to the fertilizer produced by the designated production enterprises or fertilizer stations of local soil testing and formula fertilization, because the formula fertilizer produced by the designated enterprises or fertilizer stations of formula fertilizer is prepared and produced according to the local soil nutrient content and the fertilizer demand law of crops, which is highly targeted and suitable for local crops. Second, formula fertilizer fixed-point enterprises and fertilizer stations are enterprises with high integrity, good production equipment and technology strictly checked and screened by local agricultural administrative departments. Third, the formula fertilizer produced by the designated enterprises and fertilizer stations shall be strictly controlled by the local agricultural technology department. According to the soil test, the fertilizer demand law of crops and the results of field experiments for many years, the formula, supervision of production, technical guidance on fertilizer use, field investigation and summary shall be provided in the whole process of technical services, which shall be genuine and shall not steal the content.

2. Select the agricultural materials department with fixed business premises to purchase

Buy from agricultural materials stores with fixed business premises and outlets. Do not buy products from mobile vendors who go from village to household. Generally, mobile fertilizer vendors do not have legal agricultural materials distribution licenses and procedures, so they have low reputation, large deception, poor product quality and are prone to fake and fake fertilizers. It is suggested that farmers choose fertilizers from large manufacturers and well-known brands with good results in the previous year. Fertilizer manufacturers and well-known brands generally have advanced production equipment and technology, strong economic strength, strong technical force, fertilizer controlled release effect and actual nutrient content consistent with the marked indicators. Prudently buy products promoted by "Fudge Team" under the guise of factory direct sales. Although the price is not high, the nutrient content is greasy, the probability of quality problems is high, and it is difficult to protect rights. At the same time, don't believe in products recommended by non-authoritative departments that you haven't seen with your own eyes, and don't believe in unrealistic exaggerated propaganda, so as not to be cheated.

II. Rational purchase and correct use of new fertilizers

With the rapid development of science and technology, fertilizer production equipment and production technology progress, researchers have been developing and producing a series of slow release fertilizers aimed at controlling and prolonging fertilizer efficiency and improving fertilizer utilization. At present, the state and the industry have promulgated and implemented the standards for controlled release fertilizers: slow release fertilizer (GB/T23348-2009), slow release fertilizer (HG/T3931-2007), controlled release fertilizer (HG/T4215-2011), stable fertilizer (HG/T4135-2010), urea formaldehyde slow release fertilizer (HG/T4137-2010), humic acid compound fertilizer (HG/T 5046-2016), alginate fertilizer (HG/T 5046 -2016), etc. The popularization and application of these slow-release fertilizers have prolonged the fertilizer efficiency and improved the utilization rate of chemical fertilizers. On the premise of stabilizing grain output, they have contributed to the realization of "zero growth in fertilizer use by 2020" proposed by the Ministry of Agriculture. The common characteristics of these slow-release new fertilizers are: firstly, they mainly focus on nitrogen fertilizer, secondly, potassium fertilizer, and adopt chemical compounding and physical action to make the available nutrients of crops slowly (or controlled) release with time; secondly, the total nutrient content of nitrogen, phosphorus and potassium of slow-release new fertilizers is mostly between (45%-51%), which is lower than that of common blended fertilizers (52%-55%). There is no doubt that under the same content and fertilizer application amount, the fertilizer efficiency of the new slow release fertilizer is definitely better than that of the ordinary fertilizer, and the yield increase effect is obvious. However, some slow release fertilizer enterprises and sales personnel publicize that 80 jin of a certain slow release fertilizer is applied per mu of corn, which is better than 100 jin of ordinary 55% blended fertilizer. The price of each ton of slow release fertilizer is 300-500 yuan higher than that of ordinary 55% blended fertilizer. There is no lack of exaggerated propaganda and selling high-tech suspects. It is suggested that farmers should purchase new fertilizer products rationally, especially on the basis of small-scale test and successful demonstration in terms of usage, and then apply them in large areas, and do not over-trust the propaganda of manufacturers.

III. Check the package identification and instructions

Check the packaging identification should include: product name, nutrient content (especially the type and content of controlled release nutrients), implementation standards (controlled release fertilizers generally need to be marked with two implementation standards), production license number, fertilizer registration certificate number, factory name and address, contact telephone number, etc.; there are nitrogen, phosphorus, potassium and other major nutrient content identification, packaging bag or back, there are product instructions. The instructions should include: applicable crops, applicable areas, application methods, recommended dosage and other relevant contents. Poor quality fertilizer packaging is simple, no trademark, such as a slow release fertilizer implementation standard only marked core fertilizer standards, not marked slow release fertilizer standards, nor marked slow release nutrient types and slow release nutrient content.

IV. Pay attention to the types and contents of nutrients

Many farmers often decide to buy fertilizer varieties according to the price when purchasing fertilizer, but ask less about the weight and nutrient content, and the quality of low-cost fertilizer often cannot be guaranteed, so when purchasing fertilizer, it should be combined with factors such as performance and content to comprehensively judge. In terms of nutrients, we should not only look at the total nutrient content, but also look at the pure nitrogen (N), pure phosphorus (P2O5), pure potassium (K2O) content. Some fertilizer enterprises have confused fertilizer packaging labels, misleading consumers. For example, the "magnetic controlled release blended fertilizer" produced by Lianyungang XXX Fertilizer Co., Ltd. is marked with N22+ P2O510 + K2O5 ≥37%, sulfur ≥8%, amino acid 5% and humic acid ≥6% on the front side, and marked with striking characters on the back side: Compound fertilizer 25kg, 26-15-15≥56%, medium character marked amino acid particles 20kg, sulfur coated urea N≥37% 5kg, the actual total nutrient content of nitrogen, phosphorus and potassium of this fertilizer is only 37%, buyers mistakenly believe that the total nutrient content of nitrogen, phosphorus and potassium is 56%.

V. Ask for proof of fertilizer purchase

When purchasing fertilizer, be sure to ask for the fertilizer purchase invoice. The fertilizer purchase voucher is an invoice or receipt. The name, quantity and price of the purchased fertilizer should be indicated in the ticket. If there is no formal invoice, the dealer shall also provide the fertilizer purchase certificate with official seal to prevent the quality problems of fertilizer as the basis for safeguarding rights.

Source: plowing

Author: Wang Housheng

Editor: Li Meng

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