Quality control substances for organic matter in water-soluble fertilizers
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Organic matter quality control substances in bio-organic fertilizers
RMK060 | 50g/瓶
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Quality control substances of organic matter in organic fertilizer
RMK021a | 50g/瓶
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Organic matter quality control substances in compound microbial fertilizers
RMK061 | 50g/瓶
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Quality control substances for humic acid content in water-soluble fertilizers
RMK064 | 50g/瓶
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Quality control substances for total nutrients (nitrogen, phosphorus, potassium) in water soluble fertilizers
RMK044 | 70g/瓶
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Quality control substances for total nutrients (nitrogen, phosphorus, potassium) in water soluble fertilizers
RMK066 | 70g/瓶
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Substances for quality control of moisture content in organic fertilizers
RMK062 | 12支/套（20g/支）
Quality control substances for organic matter in water-soluble fertilizers
NY/T1976-2010
重铬酸钾--硫酸氧化--硫酸亚铁滴定法、重铬酸钾--硫酸氧化-紫外分光光度法（UV）。
有机质
30.7
2.87
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