T/CXDYJ 0014-2020 Organic Wolfberry Quality Evaluation

Scope

Scope: This standard specifies the limits and monitoring/evaluation methods for various indicators, including soil health, irrigation water quality, environmental air quality, sensory requirements, sweetness, microorganisms, and harmful substances, for organic wolfberry cultivated using integrated intelligent irrigation technology with fertilizer and algae application; Main technical content: 4.1 Soil health - Evaluation of indicators such as soil organic matter content, the composition and proportion of bacteria, fungi, and actinomycetes in the soil, trace element content, soil pH, salt content, and harmful substance levels. - Test methods: - First-level: ≥ 5.0 g/100 g - Second-level: ≥ 3.5 g/100 g - Third-level: ≥ 2.0 g/100 g - Reference standard: GB 9834-1988 - Soil bacterial ratio (%) ≥ 65% ≥ 50% ≥ 40% - Reference standard: GB 4789.2 - Trace elements (mg/kg) Extremely high High Medium - Reference standard: GB/T 14924.12-2001 - Soil pH (PH value) ≥ 1.031 ≥ 1.030 ≥ 1.030 - Reference standard: GB 7859-1987 - Total salt content (dry soil weight %) ≤ 0.3% ≤ 0.3% ≤ 0.3% - Reference standard: GB 7871-87 - Harmful substances None None None - Reference standard: GB/T 17141-1997 Note: The content of trace elements in soil is determined in accordance with the "National Classification Standards for Effective Trace Elements in Soil". 1.2 Irrigation water quality The automated irrigation water quality shall meet the current national standards GB 5084 "Standards for Irrigation Water Quality in Farmlands", GB/T7466 "Determination of Total Chromium in Water", GB/T7467 "Determination of Hexavalent Chromium in Water", GB/T7470 "Determination of Lead in Water", GB/T7471 "Determination of Cadmium, Copper, Zinc, and Lead in Water", GB/T7484 "Determination of Fluoride in Water", GB/T7485 "Determination of Total Arsenic in Water", GB/T11914 "Determination of Chemical Oxyge

Development Information

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