In recent years, the author often used the experts and scientific and technical personnel of the Cotton Plantation Professional Committee of the China Rural Technology Association to investigate the production of cotton and other crops in the provinces of Hubei, Hunan, Jiangxi, Anhui and Jiangsu. I heard many farmers' friends report that they are investing more and more crops and fertilizers, but the output cannot be increased in proportion or even reduced. This situation has typical cases everywhere.
Due to excessive fertilizer input, soil organic matter is declining. In order to improve this situation, some local organic fertilizer production enterprises came into being. From the perspective of production practice in most places, the promotion and application of bio-organic composite fertilizers can improve soil structure, improve soil traits, inhibit soil-borne diseases, and improve crops. The yield is good and the direction of development is completely correct.
However, the application of bio-organic compound fertilizer is not very large. Why is the application of good fertilizers not fast? We found in the survey that the opinions of farmers from different places are not the same:
- First, some say that bio-organic composite (mixed) fertilizers are rich in nutrients, save labor and time, and are welcomed by scientists with technology-mindedness;
- The second is that the first two years of bio-organic fertilizer products have just been implemented, and the results are getting worse and worse;
- Third, some bio-organic compound fertilizers are rough in packaging and are not resistant to storage and transportation;
- Fourth, the production indicators on the packaging are incompletely marked;
- Fifth, the nutrient content label is vague, only the total amount of nitrogen, phosphorus and potassium, and no active ingredient content;
- The sixth is to increase the total nutrient content, and calculate the total nutrient content by adding organic matter, humic acid and medium and trace elements to raise the price;
- Seventh, there is no sign of chlorine on the fertilizer packaging;
- Eighth, the enterprise standards established by manufacturers are often lower than the mandatory standards set by the state. The above shows that bio-organic composite (mixed) fertilizer has its success in the promotion and application, and there are also some shortcomings.
In order to purchase the fertilizer, you must put the quality off, and you must pay attention to the skills in order to maximize efficiency.
First, we must understand the different fertilizer concepts. A fertilizer made of a compound formed by a chemical reaction means a compound fertilizer; a fertilizer which is granulated by physical mechanical mixing is called a compound fertilizer. The nutrient content of compound fertilizer and compound fertilizer is generally based on the content of nitrogen, phosphorus and potassium. The bio-organic composite (mixed) fertilizer is synthesized by citing microbial strains with organic materials and then compounded with inorganic fertilizers. The organic matter, NPK, and functional microorganisms should have different logos, although they have their own functions. But not added to the total nutrient content.
Second, we must see the true and false of the fertilizer from the packaging. Some farmers only pursue the color of the package and look good, while ignoring the completeness of the compound fertilizer production method. The choice of fertilizer depends on the production license, business license and standard certificate on the package; the second depends on the product name, the manufacturer's name, the place of origin, and the date of manufacture; the third depends on whether the packaging is resistant to storage, storage, and storage; Don't forget to request an invoice at the time of purchase.
Third, we must find out the category from the nutrient content. The first is to clear the effective content of nitrogen, phosphorus and potassium; the second is to find out the content of medium and trace elements and organic matter and humic acid; the third is to find out the nutrient content of special compound fertilizer; the fourth is to find out whether it contains chloride. . Then choose different types of fertilizer according to different soils and different crops.
Fourth, we must visually identify the quality of the pros and cons. First, the quality of the compound fertilizer is good, no lumps, white crystals can be seen on the surface of the particles after storage, and red fine potassium fertilizer granules are also included; secondly, the granules of the fertilizer are sticky by hand; the third is good solubility in water; Fourth, a small amount of granular fertilizer is baked on the iron sheet. The thicker the ammonia smell and the yellower the flame, the higher the nitrogen and potassium content. On the contrary, the quality is not fully met.
Fifth, pay attention to skills from the application method. First, different types of bio-organic compound fertilizers are rich in organic matter, and are recommended as base fertilizer application. A certain amount of potassium sulfate compound fertilizer can be used to make the fertilizer release steadily over a long period of time; Should be applied with 25 kg of ammonium bicarbonate, which can be combined with the speed of fertilizer supply; the third is to have better sensation in the field when fertilizing, the drought should be immediately applied after the lack of sputum; the fourth is to ditch deep application or deep application .
This article URL: How to choose bio-organic fertilizer, how to choose good quality bio-organic fertilizer
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