What are the fertilizers sold in the market? Fertilizer standard

At present, the fertilizers on the market are roughly chemical fertilizers (nitrogen fertilizer, phosphate fertilizer, compound fertilizer, compound fertilizer, mixed fertilizer, trace element fertilizer, etc.), organic fertilizer (green fertilizer, human waste, manure, compost, manure, biogas fertilizer, waste Fertilizer, mud, smoky soil, pit soil, dregs, etc.), the next step is to bring the fertilizer standard Daquan hope to help everyone.

First, fertilizer

Inorganic fertilizer, inorganic salt fertilizer produced by extraction, mechanical pulverization and chemical synthesis, also known as mineral fertilizer, mineral fertilizer, can be divided into the following categories according to nutrient types:

1, nitrogen fertilizer

Containing only nitrogen nutrients, commonly used are urea (46% nitrogen), ammonium sulfate (also known as ammonium sulfate, fertilizer field powder, nitrogen containing 20.5-21%), ammonium chloride (nitrogen containing 25%), ammonium bicarbonate (ammonium carbonate, nitrogen content 17%), ammonium nitrate (nitrate ammonium, nitrogen content 34%), and the like.

2, phosphate fertilizer

Contains only phosphorus nutrients, commonly used superphosphate (calcium, containing phosphorus pentoxide 16-18%), heavy superphosphate (heavy calcium, containing phosphorus pentoxide 40-50%), calcium magnesium phosphate fertilizer (including Phosphorus pentoxide (16-20%), steel slag phosphate fertilizer (including phosphorus pentoxide 15%), phosphate rock powder (including phosphorus pentoxide 10-35%).

3. Compound fertilizer

It is obtained by chemical synthesis. The commonly used varieties are diammonium phosphate (18% nitrogen, 46% phosphorus pentoxide), potassium dihydrogen phosphate (containing 52% phosphorus pentoxide, 34% potassium oxide).

4, compound fertilizer

It is composed of two or more chemical fertilizers or chemical fertilizers mixed with organic fertilizers and other physical processes. The nitrogen, phosphorus and potassium ternary compound fertilizers are divided into high concentration according to the total nutrient content (total nutrient content ≥ 40.0%). Medium concentration (total nutrient content ≥ 30.0%) and low concentration (total nutrient content ≥ 25.0%) third gear.

5, mixed fertilizer, also known as BB fertilizer

Containing more than two kinds of constant nutrients, the nitrogen, phosphorus and potassium ternary compound fertilizers have a total nutrient content of not less than 35.%.

6, trace element fertilizer

Contains trace elements necessary for plant nutrition, such as zinc, boron, copper, manganese, molybdenum, iron, etc.

Fertilizers that implement mandatory national standards are:

GB2440-2001 urea;

GB3559-2001 ammonium bicarbonate;

GB10205-2009 monoammonium phosphate, diammonium phosphate;

GB10510-2007 nitrophosphate fertilizer, phosphorus and potassium nitrate fertilizer;

GB15063-2009 composite (mixed) fertilizer;

GB20406-2006 potassium sulfate for agriculture;

GB20412-2006 calcium magnesium phosphate fertilizer;

GB20413-2006 superphosphate;

GB21633-2008 blended fertilizer (BB fertilizer);

GB21634-2008 granular heavy superphosphate.

Fertilizers that implement recommended national standards are:

GB/T2946-1992 ammonium chloride;

GB/T20782-2006 Agricultural phosphorus-containing explosion-proof ammonium nitrate;

GB/T20784-2006 potassium nitrate for agriculture;

GB/T20937-2007 Potassium magnesium fertilizer for agriculture, etc.

Second, organic fertilizer

1. Organic fertilizer varieties

Green manure, human excrement, manure, compost, manure, biogas fertilizer, waste fertilizer, mud fertilizer, smoked soil, pit soil, dregs, etc.

2, organic fertilizer implementation standards

Organic fertilizers are implemented in accordance with the "organic fertilizer" (NY525-2012) standards;

The organic-inorganic compound fertilizer is implemented according to the standard of "organic-inorganic compound fertilizer" (GB18877-2009);

Bio-organic fertilizer is implemented in accordance with the "Bio-organic Fertilizer" (NY884-2012) standard.

Third, microbial fertilizer

1. Microbial fertilizer refers to a product that uses a microbial life activity to obtain a specific fertilizer effect on a crop. It is also called an inoculant or a bacterial fertilizer, such as a conventional nitrogen fixation, phosphorus dissolving, and potassium dissolving bacteria.

2. Microbial fertilizer types

Agricultural microbial agents, the implementation of the standard GB 20287-2006;

Compound microbial fertilizer, standard NY/T 798-2015;

Bio-organic fertilizer, implemented in standard NY 884-2012.

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