Keyword [coal humic acid] Result: 1 - 5 | Page: 1 of 1 1.  Nutrient Slow-release Mechanism Of Humic Acid Fertilizer Extracted From Brown Coal And Its Effects 2.  Effect Of Release Characteristics Of Humic Fertilizer And Its Efficiency 3.  Influence Of Coal Based Humic Acids On Soil Available Zn And Pak-choi 4.  The Study On The Degradation Of Weathered Coal Production Humic Acid Fertilizer By Use Of Actinomycetes 5.  Study On Activation,Extraction And Activity Of Weathered Coal Humic Acid From Different Sources   <<First  <Prev  Next>  Last>>  Jump to

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