The organic fertilizer market has exploded with the support of the government and the needs of the general environment. Many users who grow fruits and vegetables have also felt the benefits of organic fertilizer after using it. There are also some users who lack relevant knowledge when choosing organic fertilizer. After using inferior fertilizers, they suffered losses. Today we will discuss the selection and resolution of organic fertilizer with you.

First, let's look at an example.

Last yearIn October, the "Huyou Group" agricultural materials sales group from Shandong, Henan and other places entered Jingning in the form of science and technology lectures, and sold organic fertilizers and compound fertilizers to local farmers. The daily sales volume reached 7-8 tons. Those products that are labeled as "biological bacterial fertilizer" for sale are actually ordinary organic fertilizers that can be seen everywhere in the market. The ex-factory price per ton is less than 1000 yuan. After replacing the packaging of biological bacterial fertilizer, the retail price per ton is as high as 2800 yuan. Around the yuan, what attracts farmers to buy is to buy ten (bags) and get one (bag), so that farmers who lack common sense of bacterial fertilizer identification are deceived as a whole.

Secondly, thisDo not use 4 kinds of organic fertilizers. 1. Sludge precipitated by municipal sewage: Although it contains a certain amount of organic matter and nitrogen, phosphorus and potassium, this kind of raw materials do not need to spend money and the processing cost is very low, but heavy metals and E. coli seriously exceed the standard, which is easy to cause dead roots and trees, and fruit people are easy to cause malignant canceration after eating. 2. Sludge precipitated by industrial wastewater: Although this type of sludge also contains a large number of elements and organic matter, heavy metals also seriously exceed the standard, which can cause rotten roots, dead trees, and seriously pollute the soil. 3, paper mill scraps: this fertilizer, the main component is lignin. It is a kind of organic matter that is extremely difficult to absorb, not to mention that many chemical raw materials are added in the process of papermaking, and most of these raw materials are left in the scraps. It has a great damage to the soil and a great influence on the roots. 4, weathered coal: it belongs to the apparent organic matter, can not become the carbon source of soil microorganisms, weathered coal in the real effective ingredient is humic acid, but not deep processing is invalid organic nutrients. The main ingredients of high-quality commercial organic fertilizer: Bacillus subtilis, jelly-like Bacillus, bran powder, bone meal, corn starch, amino acids, protease. The grain material is fully decomposed and applied to the soil is safer for crops and more conducive to the transformation of organic matter and nutrients.
Organic fertilizer starter, the preparation of functional agents and soil-borne bacteria agent is a magic weapon to improve the soil, functional agents have the role of phosphorus, potassium, nitrogen fixation, but also has the role of anti-disaster, antifreeze, strong roots and so on. Anti-soil-borne pathogens can be very good in the prevention of diseases and pests in the soil.

Well, the following said the identification of organic fertilizer:
Look at the raw materials.

As the saying goes"Compound fertilizer to see nutrients, organic fertilizer to see raw materials" is the truth. At present, there are many kinds of raw materials used as organic fertilizer on the market, and the quality is mixed, and the effect is very different. Commonly used are humic acid, corn amino acid tail liquid, lignin, biochemical pharmaceutical factory waste and cake, etc.
Here we mainly talk about two kinds of common humic acids, amino acids
humic acid raw materials: It has a good effect on soil and root system, but it has little effect on the support of beneficial bacteria in soil.
Amino Acids: It is mostly acidic and has a good effect on improving alkaline soil, but it is easy to burn roots when applied in acidic soil.'burn the seedlings, you must pay attention to this! Be sure to look at the pH when buying this fertilizer.. In order to scientifically define the acidity and alkalinity of soil, the index (pH) of hydrogen ion content in soil is used to express the acidity and alkalinity of soil. When pH = 7 for neutral soil, pH> 7 for alkaline soil, pH <7 for acidic soil.
Biochemical Pharmaceutical Factory ClassIn recent years, the organic fertilizer made from the solid waste of biochemical pharmaceutical factory by microbial decomposition has shown good results in the actual production of agriculture, which is due to the addition of starch and cake components to the culture medium used for antibiotic production in biochemical pharmaceutical factory.
These late biochemical wastes were often used for processing feed in previous years. In view of food safety factors, they were later banned by the state from adding them to feed.
However, the nutritional value of the ingredients in these wastes is very high, and the effect is very significant when used as organic fertilizer after decomposition.    
Soybean meal, cake meal, etc: At present, there are manufacturers on the market directly use cake bran to produce organic fertilizer, but because the cost of raw materials is too high, and the logoIt is difficult for us to judge whether and how much products such as "soybean meal organic fertilizer" or "peanut bran organic fertilizer" contain soybean meal peanut bran without personally supervising the whole production process.
Therefore, in the choice of organic fertilizer from the raw materials to grasp, it is possible to choose a good organic fertilizer, the so-called"Good raw materials can produce good fertilizer" even this truth. Many agricultural merchants and farmers' friends evaluate the pros and cons of organic fertilizer and directly use NPK content and organic matter content to measure it. This is unscientific, and different raw materials have different functions. This is important.
We can also do this:

1, a glass or transparent cup
2. Take 30-50g of organic fertilizer or bio-organic fertilizer and put it in a cup

3, add 100ml water

4. Stir for a minute or two, and let stand in a bright place for 10 minutes.

5. Distinguish the impurity content in organic fertilizer or bio-organic fertilizer by observing the precipitation in the cup

6, look at the color of the aqueous solution, the lighter the color, the worse the fertilizer effect (light color, light yellow low fertilizer effect; brown fertilizer effect is better)

Second look at the process

This method is also difficult for farmers to evaluate and analyze. How many people can go to the factory to see the production process in person? But it can be recognized by a little, that is, the quality assurance from big factories and big brands. If the package is marked with the registration certificate number of the Ministry of Agriculture, the registration certificate number issued by some provincial departments cannot be found, such as Shaanxi's"Shaanxi agricultural fertilizer * * * quasi word * * *, agricultural fertilizer before the abbreviation of Shaanxi, these can be found on the Shaanxi agricultural department online" agricultural department on the approval of the issuance of fertilizer registration certificate announcement.

Three see whether the packaging specifications

Generally, those who are authorized to produce do not have their own production plants and sources of raw materials. They belong to packed products. This kind of products do not have to be paid attention to. It mainly depends on the labeling of product content. It does not rule out that some illegal small businesses randomly mark the content for profit. Also, foreign language packaging as far as possible not to buy, because organic fertilizer is waste recycling, foreign imports are almost impossible. When it comes to the identification of organic fertilizer biological fertilizer mainly introduces the following points:

1. Check whether there is a microbial fertilizer registration certificate issued by the Ministry of Agriculture on the package.
Since bio-organic fertilizer is a kind of fertilizer with special functions, the product registration is carried out in the Microbial Fertilizer Registration Center of the Ministry of Agriculture, and the fertilizer registration certificate is issued by the Ministry of Agriculture. Unlike compound fertilizer and ordinary organic fertilizer, fertilizer registration is carried out at the soil and fertilizer stations of the agricultural departments of all provinces, and provincial fertilizer registration certificates are issued. The registration method of the certificate number is"Microbial fertilizer (registration year) Lin Zi (No.)" or "Microbial fertilizer (registration year) Zhunzi (No.)".
   2, biological fertilizer check whether the effective number of live bacteria is marked on the package.
If not, it is a fake product.
   3, biological fertilizer check whether the packaging is marked with the product production date and expiration date.
Because the special functional bacteria in bio-organic fertilizer are alive and alive, with the extension of product storage time, the effective number of live bacteria of special functional bacteria will continue to decrease, and the activity of general bacteria is one to two years. Therefore, if the validity period of the product is too long, it is not responsible for the user.
   4, see if there is a "NY525-2012" organic fertilizer "NY884-2012 bio-organic fertilizer" standard on the package.
Bio-organic fertilizer and ordinary organic fertilizer product implementation standards are different, the former is.NY884-2012 (replacing the previous NY884--2004), the latter is the NY525-2012 (replacing the previous NY525--2002).
   5. You can go to the relevant website of the Planting Management Department of the Ministry of Agriculture for inquiry.
For dealers, the authenticity of bio-organic fertilizer can also be checked from the product inspection report. The first is to check whether the product name, inspection basis, technical indicators, etc. on the inspection report of this batch of products are consistent with the packaging identification. Be sure to check"Supervision and inspection" report, not "entrusted inspection" or the inspection report issued by the production enterprise itself.
   6. It is recommended to purchase a small amount for the first time, and then make a large amount of purchase after demonstrating the effect.
4. to see if the product is uniform

The key role of bio-organic fertilizer is achieved by microbial strains with special functions. Too high or too low water content of the product is not conducive to the survival of the strains, so it is more direct to judge from the reference of water content. Grab a handful of fertilizer in the sun to see if the material is overcast, and throw it up to see if it is dusty. Fertilizer is wet and lumpy, or dry and gray are unqualified products.
  The carrier added to the bio-organic fertilizer should be composed of a variety of organic nutrients"Package", since it is a combination of multiple raw materials, you should be able to see traces of multiple raw materials when observed in light. The composition of the general product contains plant straw (such as corn cob, soybean meal, etc.). Careful observation can see the real composition of the raw materials, and some raw materials have special smell.
5. to see if the product is effective

The key role of bio-organic fertilizer is achieved by microbial strains with special functions. If there are no microbial strains with special functions in the product or their content is not high and their ability is not strong, the application effect can be imagined. According to the experience of the laboratory, the author designed a simple identification method:
The first step is to take a small amount of product and add a little tap water to form dough, put it in the refrigerator to form ice cubes, and then disintegrate in the sun the next day. After at least three times of repeated freezing and thawing, the bacteria in the fertilizer will freeze to death (the cells freeze and form ice needles to puncture the cells), the number will be greatly reduced, and the role played by the bacteria will be basically eliminated.
             The second step, the original product and repeatedly frozen and thawed two kinds of fertilizer, manure in the same field or small pot, regularly observe and compare the differences between the two, if the difference is not obvious, then the bio-organic fertilizer products.The ability of "special functional bacteria" is not strong or the number is not enough, or even not.