Planting crops requires fertilization to return enough soil to the soil to maintain or increase soil microbial activity. All organic or inorganic (mineral) fertilizers, especially nitrogen-rich fertilizers, should be based on the principle that they do not adversely affect the environment and crops (nutrition, taste, quality and plant resistance).
I. Guidelines for the use of fertilizers for AA grade green foods AA grade green foods: refers to the production areas where the ecological environment quality meets the requirements. No chemical synthetic substances are used in the production process. Production, processing, product quality and packaging are carried out according to specific production operation rules. Products that have been tested and inspected to meet specific standards and have been approved by a specialized agency to use the AA Green Food Mark.
1. The use of green food standards stipulates the types of fertilizers that are permitted to be used, the use of other fertilizers, and the use of hazardous municipal waste and sludge are prohibited. The hospital's fecal waste and industrial waste containing harmful substances (such as poisonous gas, pathogenic microorganisms, heavy metals, etc.) should not be collected as fertilizer for producing green food.
2. Straw returning can be carried out according to local conditions. The form of green manure is covered, turned into soil and mixed with stacks. It is best to turn green manure during the full bloom period, and the depth of burial is about 15 cm. Cover the soil to be strict, turn it back and mix it evenly. Seeding or transplanting can only be carried out 15 to 20 days after pressing.
3. Biogas fertilizer and decomposed manure and manure can be used as top dressing. It is strictly forbidden to pour non-fertilized manure in vegetables.
4. Cake fertilizer has a good effect on crop varieties such as fruits and vegetables.
5. Foliar fertilizer, sprayed on crop leaves, can be applied one or more times, and the last time must be sprayed 20 days before harvest.
6. Microbial fertilizer can be used for seed dressing, base fertilizer and top dressing. It should be used in strict accordance with the requirements of the instruction manual. Microbial fertilizers have a significant effect on reducing nitrate content and improving quality of vegetables. It can be expanded in a planned way on vegetables.
2. Guidelines for the use of fertilizers for Grade A green foods Grade A green foods: refers to the production areas where the ecological environment quality meets the prescribed standards. The limited use of chemical synthetic substances is allowed in the production process, and the production, processing and product quality are determined according to specific production operation rules. And the products that have been tested and inspected to meet certain standards and have been approved by a special agency to use the Class A green food mark.
1. Select the type of fertilizer that is allowed to be used in the green food standard. If production is necessary, the production base is allowed to use part of the fertilizer, but the use of nitrate nitrogen is prohibited.
2. Fertilizer must be used together with organic fertilizer. The ratio of organic nitrogen to inorganic nitrogen is 1:1, and the fertilizer is about 1000 kg plus urea 20 kg (the fertilizer is used as the base fertilizer, and the urea can be used as the base fertilizer and top dressing). The last top dressing must be carried out 30 days before the harvest.
3. Fertilizer can also be used in combination with organic fertilizer and microbial fertilizer. Urban garbage must be treated in a harmless manner and the quality can reach the national standard. The annual limit per acre of farmland, the sticky soil should not exceed 300 kg, and the sandy soil should not exceed 2000 kg.
4, straw returning and other use criteria, with the AA grade green food fertilizer guidelines.
I. Guidelines for the use of fertilizers for AA grade green foods AA grade green foods: refers to the production areas where the ecological environment quality meets the requirements. No chemical synthetic substances are used in the production process. Production, processing, product quality and packaging are carried out according to specific production operation rules. Products that have been tested and inspected to meet specific standards and have been approved by a specialized agency to use the AA Green Food Mark.
1. The use of green food standards stipulates the types of fertilizers that are permitted to be used, the use of other fertilizers, and the use of hazardous municipal waste and sludge are prohibited. The hospital's fecal waste and industrial waste containing harmful substances (such as poisonous gas, pathogenic microorganisms, heavy metals, etc.) should not be collected as fertilizer for producing green food.
2. Straw returning can be carried out according to local conditions. The form of green manure is covered, turned into soil and mixed with stacks. It is best to turn green manure during the full bloom period, and the depth of burial is about 15 cm. Cover the soil to be strict, turn it back and mix it evenly. Seeding or transplanting can only be carried out 15 to 20 days after pressing.
3. Biogas fertilizer and decomposed manure and manure can be used as top dressing. It is strictly forbidden to pour non-fertilized manure in vegetables.
4. Cake fertilizer has a good effect on crop varieties such as fruits and vegetables.
5. Foliar fertilizer, sprayed on crop leaves, can be applied one or more times, and the last time must be sprayed 20 days before harvest.
6. Microbial fertilizer can be used for seed dressing, base fertilizer and top dressing. It should be used in strict accordance with the requirements of the instruction manual. Microbial fertilizers have a significant effect on reducing nitrate content and improving quality of vegetables. It can be expanded in a planned way on vegetables.
2. Guidelines for the use of fertilizers for Grade A green foods Grade A green foods: refers to the production areas where the ecological environment quality meets the prescribed standards. The limited use of chemical synthetic substances is allowed in the production process, and the production, processing and product quality are determined according to specific production operation rules. And the products that have been tested and inspected to meet certain standards and have been approved by a special agency to use the Class A green food mark.
1. Select the type of fertilizer that is allowed to be used in the green food standard. If production is necessary, the production base is allowed to use part of the fertilizer, but the use of nitrate nitrogen is prohibited.
2. Fertilizer must be used together with organic fertilizer. The ratio of organic nitrogen to inorganic nitrogen is 1:1, and the fertilizer is about 1000 kg plus urea 20 kg (the fertilizer is used as the base fertilizer, and the urea can be used as the base fertilizer and top dressing). The last top dressing must be carried out 30 days before the harvest.
3. Fertilizer can also be used in combination with organic fertilizer and microbial fertilizer. Urban garbage must be treated in a harmless manner and the quality can reach the national standard. The annual limit per acre of farmland, the sticky soil should not exceed 300 kg, and the sandy soil should not exceed 2000 kg.
4, straw returning and other use criteria, with the AA grade green food fertilizer guidelines.
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