This standard stipulates the types of fertilizers that can be used in the non-pollution production of vegetables and the principles of application. This standard applies to the production of pollution-free vegetables in Hebei Province. The clauses in the following documents have been adopted as references to this standard. For dated references, subsequent amendments (not including errata content) or revisions do not apply to this section, however, encourage the parties to reach an agreement in accordance with this section to study whether the latest version of these documents can be used . For undated references, the latest version applies to this section. GB15063-94 compound fertilizer standard GB/T17419/1998 containing amino acid foliar fertilizer GB/T17420/1998 containing trace elements foliar fertilizer NY227/94 microbial fertilizer DB13/310/1997 pollution-free agricultural products producing environment technical conditions DB13/311/1997 Pollution-free agricultural product quality standards 3.1 Pollution-free vegetables means that the environmental quality of the production site meets the requirements of DB13/310, the production process strictly implements the pollution-free vegetable production operating procedures, and the product quality complies with the DB13/311 standard vegetable products. 3.2 Organic fertilizers are organic materials derived from plants and animals that have been applied to the soil after detoxification treatment to provide plant nutrition as the main effect. Including manure, heap fertilizer, green manure, and miscellaneous fertilizers. 3.3 Inorganic fertilizers are made using physical and/or chemical methods. Their nutrients are in the form of inorganic salts. Including nitrogen fertilizer, phosphate fertilizer, potash fertilizer, trace element fertilizer, etc. 3.4 Inorganic compound fertilizers contain at least two nutrients of nitrogen, phosphorus, and potassium in three nutrients, fertilizers made by chemical synthesis and/or physical mixing. 3.5 Organic-inorganic compound fertilizers Fertilizers are produced by mixing and/or combining organic and inorganic materials. 4 Applicable Fertilizers 4.1 Organic Fertilizer After detoxification treatment of manure, heap fertilizer, green manure, cake manure, grass ash, humic acid fertilizer, straw and so on. 4.2 Inorganic Fertilizers Ammonium Sulfate, Ammonium Bicarbonate, Urea, and Lime Nitrogen in Nitrogen Fertilizers; Superphosphate, Heavy Superphosphate, Phosphate, Monoammonium Phosphate, Diammonium Phosphate in Phosphate Fertilizers; Potassium Sulfate in Potash Fertilizers, Potassium and magnesium fertilizers, etc.; borax in trace element fertilizers, boric acid, manganese sulfate, ferrous sulfate, zinc sulfate, copper sulfate, and ammonium molybdate. 4.3 Other fertilizers are made of organic and inorganic compound fertilizers using 4.1 and 4.2 as raw materials; compound fertilizers that are officially registered in accordance with GB 15063-94; and new-type fertilizers and bio-fertilizers that are officially registered and do not contain chemical synthesis regulators. 5 Types of fertilizers prohibited and used in limited quantities 5.1 Fertilizers prohibited from the use of municipal solid waste, sludge, waste residue from rural industries, and organic fertilizers that have not been harmlessly disposed of; organic fertilizers that do not meet relevant standards; new types that have not undergone formal registration procedures Fertilizers and compound fertilizers; foliar fertilizers that do not meet the requirements of GB/T17419 and GB/T17420, and those that meet the requirements of GB/T17419 and GB/T17420 but contain hormones or chemically synthesized growth regulators. 5.2 Limited use of fertilizer 6.1 In accordance with DB13/311 standards and does not cause environmental pollution of the soil. 6.2 The main organic fertilizer, supplemented by chemical fertilizers, the ratio of organic nitrogen to inorganic nitrogen is not less than 1-1. 6.3 Determine the application amount of fertilizer based on soil nutrient analysis results and the law of vegetable crops requiring fertilizer; the highest inorganic nitrogen nutrient application limit is 15kg/667m2, medium fertility (refers to the soil contains alkali-soluble nitrogen N 80-100mg/kg, effective Phosphorus P2O5 60-80 mg/kg, available potassium K2O 100-150 mg/kg) The amount of P and K above the soil should be in order to maintain the soil nutrient balance; the available P in high-fertility soil is above 80mg/kg, and the available K is 180mg/kg. Above kg, inorganic phosphorus and potassium fertilizers are not applied in the season. 6.4 Chlorine-free crops are prohibited from using chlorinated fertilizers; leafy vegetables and root vegetables are not allowed to use nitrate-nitrogen fertilizers. 6.5 According to the nutritional characteristics of vegetable growth and development and soil, plant nutrient diagnosis fertilizer. Choose the type of top-dressing fertilizer, amount of fertilizer, and top-dressing period. For one-time harvested vegetables, especially leafy vegetables, topdressing nitrogen fertilizers must not be applied within 20 days before harvest. For continuous results of vegetables, do not top dressing more than 4-5 times. 7.1 Determine the fertilization amount of different vegetables. Refer to Table 1 and Table 2 for implementation. 7.2 The use of manure, poultry excrement, straw, weeds, peat, etc. for the production of compost must be carried out at high temperatures to achieve the harmless sanitation standards specified in Table 3. The nutrient quantity required for 1000kg commercial vegetables Unit: kg Nitrogen and phosphorus (P205) Potassium (K2O) Cabbage 1.90 0.87 3.42 Radish 2.16 0.26 2.95 Cabbage 2.99 0.99 2.23 Water Radish 3.09 1.91 5.8 Cauliflower 10.8 2.09 4.91 Carrot 2.43 0.75 5.68 Spinach 2.48 0.86 5.29 Cucumber 2.73 1.3 3.47 Celery 2.0 0.93 3.88 Melon 1.36 0.5 2.16 Fen 3.79 1.12 2.34 Bitter gourd 5.28 1.76 6.89 Cole 2.77 2.33 2.06 Courgette 5.47 2.22 4.09 Bok Choy 1.61 0.94 3.91 Laiwu 3.37 2.26 5.93 Wowan 2.08 0.71 3.18 Chives 3.69 0.85 3.13 Parsley 3.64 1.39 8.84 Onion 2.37 0.70 4.10 Tomato 3.54 0.95 3.89 Welsh onion 1.84 0.64 1.06 Eggplant 3.24 0.94 4.49 Garlic 5.06 1.34 1.79 Bell pepper 5.19 1.07 6.46 Strawberry 0.87 0.23 1.93 Watermelon 1.94 0.39 1.98 Muskmelon 3 1.5 5.6 Fertilizer three elements Unit: % Type N P205 K2O Human fecal urine 0.65 0.3 0.25 Rapeseed cake 4.98 2.65 0.97 Human urine 0.5 0.13 0.19 Soybean cake 6.3 0.92 0.12 Human feces 1.04 0.5 0.37 Cottonseed cake 4.1 2.5 0.9 Pig manure 0.48 0.27 0.43 Sesame cake 6.0 0.64 1.2 Caterpillar 0.6 0.4 0.14 Peanut Cake 6.39 1.1 1.9 Hunting Mantis 0.45 0.21 0.52 Corn Stalk 0.48 0.38 0.64 Cow Dung 0 .29 0.17 0.1 Wheat straw 0.48 0.22 0.63 Cow manure 0.32 0.21 0.16 Rice straw 0.63 0.11 0.85 Beef manure 0.38 0.18 0.45 Peat 1.8 0.15 0.26 Sheep manure 0.8.05 0.45 Corn stove compost 1.72 1.1 1.16 Sheep manure 0.65 0.47 0.23 Wheat compost 0.88 0.72 1.32 Chicken manure 1.63 1.54 0.85 Urea 46 Duck manure 1 1.4 0.6 Goose manure 0.6 0.5 1 Superphosphate 12--18 Plant ash 2 4 Monoammonium phosphate 9-11 50 Potassium sulfate 45-50 DAP 14 40 Hygienic standards and requirements for high-temperature composting : The maximum heap temperature reaches 50-55°C, and the Cangsheng twins are effectively controlled for 5-7 days. There are no live earthworms, earthworms or newly emerged adult flies around the heap. Biogas Fertilizer Fertilizer Hygiene Standards and Requirements No live schistosomiasis eggs and hookworm eggs can be detected in the use of fecal fluid Normal biogas fermentation 10-4, high temperature biogas fermentation 10-1, 10-2 Effective control of mosquitoes and flies, feces Nothing in the middle. The live fly or freshly emerged flies around the pond can be used as agricultural fertilizers after being harmlessly treated.
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