Guidelines for the Use of Green Food Fertilizers

Guidelines for the Use of Green Food Fertilizers

2012-12-10 21:23:20

BSCI Factory Audit This standard specifies the types, composition and use criteria of fertilizers that are allowed to be used in the production of AA-grade green food and A-grade green food.

This standard applies to farm fertilizers and commercial organic fertilizers, humic acid fertilizers, microbial fertilizers, semi-organic fertilizers (organic compound fertilizers), inorganic (mineral) fertilizers, and foliar fertilizers that produce AA-grade green foods and A-grade green foods. Commercial fertilizer.

2 reference standards

The provisions contained in the following standards constitute the provisions of this standard through quotation in this standard. At the time of publication of the standard, the editions shown were valid. All standards will be revised, and all parties using this standard should explore the possibility of using the newer version of the following standards.

GB8172-1987 Urban Waste Agricultural Control Standard

NY227-1994 microbial fertilizer

GB/T17419-1998 Amino acid-containing foliar fertilizer

GB/T17420-1998 Foliar fertilizer containing trace elements

NY/T Green Food Production Area Environmental Standard

3 definition

This standard uses the following definition.

3.1 Green food

Refers to non-polluting, safe, high-quality, and nutritious foods that follow the principles of sustainable development, are produced in accordance with specific production methods, and are approved by special agencies to use green food labels.

3.2AA grade green food

It means that the environmental quality of the production area meets the "Environmental Quality Standards for Green Food Production Area", and chemically synthesized fertilizers, pesticides, veterinary drugs, feed additives, food additives and other substances harmful to the environment and health are not used in the production process. The product quality is in accordance with the green food product standard, and the product with the AA-level green food mark is approved by the special agency.

3.3A grade green food

Means that the environmental quality of the production area meets the "Environmental Quality Standards for Green Food Production Areas", the production process is strictly in accordance with the guidelines for the use of green food production materials and the requirements of the production operating procedures, the limited use of chemical synthesis production materials, and the product quality meets the green food product standards , Certified by a special agency, licensed to use and A-level green food mark products.

3.4 Farmhouse fertilizer

Refers to all kinds of organic fertilizers obtained on-site and used on-site. It is made up of a large amount of biological material, animal and plant residues, excrement, biological waste, etc. Including compost, retting fertilizer, stable manure, biogas fertilizer, green manure, crop straw fertilizer, mud fertilizer, cake fertilizer, etc.

3.4.1 Compost

A class of organic fertilizers decomposed by aerobic microorganisms are made with various straws, fallen leaves, green mountains and lake grasses as the main raw materials and mixed with human and animal manure and a small amount of soil.

3.4.2 Fertilizer

The materials used are basically the same as the compost, except that under flooding conditions, they are fermented by microorganisms to form a class of organic materials.

3.4.3 Manure

It is a type of organic muscle material that is mainly composed of feces and urine of pigs, cattle, horses, sheep, chickens, ducks and other livestock and poultry, stacked with straws and other litter and subjected to the action of microorganisms.

3.4.4 Biogas fertilizer

In a sealed biogas digester, organic matter undergoes microbial fermentation to produce by-products of biogas under anaerobic conditions. It mainly consists of two parts: biogas water fertilizer and biogas residue fertilizer.

3.4.5 Green Manure

Fertilizer made from fresh plant bodies, pressed on the spot, applied in different places, or retorted and piled. It is mainly divided into two categories: legume green manure and non-legume green manure.

3.4.6 Crop straw fertilizer

Fertilizer directly returned to the field with wheat straw, rice straw, corn straw, soybean straw, rape straw, etc.

3.4.7 Mud fertilizer

Fertilizer made of unpolluted river mud, pond mud, ditch mud, harbor mud, lake mud, etc., which is decomposed by anaerobic microorganisms.

3.4.8 Cake fertilizer

Fertilizers made from the residues of various oily seeds after pressing to remove the oil, such as rapeseed cake, cottonseed cake, bean cake, sesame cake, peanut cake, castor cake, etc.

3.5 Commercial fertilizer

According to national laws and regulations, it is managed by the national fertilizer department and sold in the form of commodities. Including commercial organic fertilizers, humic acid fertilizers, microbial fertilizers, organic compound fertilizers, inorganic (mineral) fertilizers, foliar fertilizers, blended fertilizers, etc.

3.5.1 Commercial organic fertilizer

A large amount of animal and plant residues, excrement and other biological wastes as raw materials, processed into commercial fertilizers.

3.5.2 Humic acid fertilizers

Peat (grass), lignite, weathered coal, etc. containing humic acids are processed into fertilizers containing plant nutrients. Including microbial fertilizer, organic compound fertilizer, inorganic compound fertilizer, foliar fertilizer, etc.

3.5.3 Microbial fertilizer

A preparation containing live microorganisms produced by the cultivation of specific microbial strains. According to the difference of microbial fertilizers for improving plant nutrients, it can be divided into five categories: rhizobia fertilizer, nitrogen-fixing bacteria fertilizer, phosphate bacteria fertilizer, silicate bacteria fertilizer, and compound microbial fertilizer.

3.5.4 Organic Compound Fertilizer

Fertilizer made by adding appropriate amount of micronutrient elements to the animal manure and other biological waste after harmless treatment.

3.5.5 Inorganic (mineral) fertilizer

Minerals are made by physical or chemical industrial methods, and the nutrients are fertilizers in the form of inorganic salts. Including mineral potash fertilizer and potassium sulfate, mineral phosphate fertilizer (phosphate rock powder), calcined phosphate (calcium magnesium phosphate fertilizer, defluorinated phosphate fertilizer), lime, gypsum, sulfur, etc.

3.5.6 Foliar fertilizer

Fertilizers that are sprayed on plant leaves and can be absorbed and utilized, and foliar fertilizers must not contain chemically synthesized growth regulators. Including foliar fertilizers containing trace elements and foliar fertilizers containing plant growth auxiliary substances.

3.5.7 Organic and inorganic fertilizer (semi-organic fertilizer)

Organic fertilizer and inorganic fertilizer are made by mechanical mixing or chemical reaction.

3.5.8 Blended fertilizer

Organic fertilizers, microbial fertilizers, inorganic (mineral) fertilizers, and humic acid fertilizers are mixed with chemical fertilizers (except nitrate nitrogen fertilizers) in a certain proportion, and are made by mechanically mixing fertilizers.

3.6 Other fertilizers

Refers to foods that do not contain toxic substances, organic by-products of the textile industry, and fertilizers made of organic materials such as bone meal, bone glue waste, amino acid residue, poultry and livestock processing waste, and sugar factory waste.

3.7 AA grade green food production materials

Refers to the means of production that have been certified by a specialized agency to meet the requirements for green food production and formally recommended for use in the production of AA and A green food.

3.8 A-level green food production materials

Refers to the means of production that have been certified by a specialized agency to meet the requirements of Grade A green food production and formally recommended for use in the production of Grade A green food.

4 Types of fertilizers allowed

4.1 Types of fertilizers allowed to be used in the production of 1AA-grade green food

4.1.13.4 The farmyard fertilizer described in 4.1.13.4.

4.1.2 AA grade green food production materials fertilizer products.

4.1.3 In the case that 4.1.1 and 4.1.2 cannot meet the needs of AA green food production, the commercial fertilizers described in 3.5.1-3.5.7 are allowed to be used.

4.2 Types of fertilizers allowed to be used in the production of 2A-level green food

4.2.14.1 Types of fertilizers

4.2.2 Fertilizer products for Grade A green food production materials

4.2.3 In the case that 4.2.1 and 4.2.2 cannot meet the requirements of A-level green food production, the blended fertilizer described in 3.5.8 is allowed (the ratio of organic nitrogen to inorganic nitrogen does not exceed 1:1).

5 Rules of Use

The use of fertilizers must meet the needs of crops for nutrient elements and return a sufficient amount of organic matter to the soil to maintain or increase soil fertility and soil biological activity. All organic or inorganic (mineral) fertilizers. In particular, fertilizers rich in nitrogen can be used without adverse effects on the environment and crops (nutrition, taste, quality and plant resistance).

5.1 The principles of fertilizer use for the production of AA grade green food

5.1.1 The types of fertilizers specified in 4.1 must be selected, and the use of any synthetic fertilizers is prohibited.

5.1.2 It is forbidden to use urban garbage and sludge, hospital fecal garbage and industrial garbage containing harmful substances (such as poisonous gas, pathogenic microorganisms, heavy metals, etc.).

5.1.3 Various localities can adopt the methods of returning straw to the field, returning to the field through the belly, returning to the field directly, and returning to the field by covering.

5.1.4 Make rational use of green manure by mulching, turning over, and retting. The green manure should be turned and pressed during the blooming period, and the depth of turning and burial should be about 15cm. The soil should be tightly covered. Seeding or transplanting can be carried out 15-20 days after pressing green.

5.1.5 The decomposed biogas liquid, residues and human and animal manure can be used as top dressing. It is strictly forbidden to use immature human feces and urine.

5.1.6 Cake fertilizer should be used preferentially for fruits, vegetables, etc. It is forbidden to use unripe cake fertilizer.

5.1.7 The quality of foliar fertilizer should meet the technical requirements of GB/T17419, or GB/T17420, or B3 in Appendix B. Dilute according to the instructions for use, and spray twice or three times during the crop growth period.

5.1.8 Microbial fertilizer can be used for seed dressing, as well as base fertilizer and top dressing. It should be operated strictly in accordance with the requirements of the instruction manual when using it. The number of effective live bacteria in the microbial fertilizer should meet the technical indicators of NY227 4.1 and 4.2.

5.2 Principles of Fertilizer Application for Grade A Green Food

5.2.1 The types of fertilizers specified in 4.2 must be selected. If the types of fertilizers in 4.2 are not enough to meet the production needs, chemical fertilizers (nitrogen, phosphorus, potassium) are allowed to be used in accordance with the requirements of 5.2.2 and 5.2.3. However, the use of nitrate nitrogen fertilizers is prohibited.

5.2.2 Chemical fertilizers must be used in conjunction with organic fertilizers, and the ratio of organic nitrogen to inorganic nitrogen should not exceed 1:1. For example, apply 1000kg of high-quality manure plus 10kg of urea (stable manure is used as base fertilizer, and urea can be used as base fertilizer and top dressing). A top dressing of leafy vegetables must be done 30 days before harvest.

5.2.3 Chemical fertilizers can also be used in combination with organic fertilizers and compound microbial fertilizers. 1000kg of manure, plus 5-10kg of urea or 20kg of diammonium phosphate, 60kg of compound microbial fertilizer (stable manure as base fertilizer, urea, diammonium phosphate and microbial fertilizer as base fertilizer and top dressing). Then a top dressing must be done 30 days before harvest.

5.2.4 Municipal domestic waste must be treated in a harmless manner, and the quality must meet the technical requirements of 1.1 in GB8172 before it can be used. The annual usage limit per acre of farmland, the clay soil does not exceed 3000kg, and the sandy soil does not exceed 2000kg.

5.2.5 Returning straw to the field: Same as 5.1.3, but also allows the use of a small amount of nitrogen fertilizer to adjust carbon nitriding.

5.2.6 Other principles of use are the same as those used in the production of AA grade green food fertilizers 5.1.4-5.1.8.

6 Other regulations

6.1 No matter what kind of raw materials (including human, livestock and poultry manure, straw, weeds, peat, etc.) are used to make compost for the production of green food, it must be fermented at high temperature to kill pathogenic bacteria and weed seeds of various parasitic eggs. Make it reach harmless sanitation standards (in line with the requirements of Appendix A).

Farmhouse fertilizers are, in principle, produced on-site and used on-site. Fertilizers from foreign farms can only be used after confirming that they meet the requirements. Commercial fertilizers and new-type fertilizers must pass the registration certification and production license of relevant national departments, and the quality indicators should meet the requirements of Appendix B.

6.2 When fertilization causes soil pollution or water source pollution, or affects the growth of crops, or the agricultural products fail to meet the sanitary standards, stop applying the fertilizer and report to the special management agency. The food produced with it cannot continue to use the green food mark.