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  • Zinc release by humic and fulvic acid as influenced by pH . . .
    In general, precipitation of zinc–humic acid complexes and sorption of humic acid to soil retarded the release of zinc from soil As influenced by its salt, organic matter, clay and oxide contents, Fethiye Soil showed the highest affinity to humic acid but also reflected the lowest zinc release, and Izmir Soil, with its lowest humic acid
  • Slow-Release Humic Acid-Based Zinc Fertilizers Improve Growth . . .
    Infrared analyses indicated that Zn was complexed in OMFs by sulfur and carbon groups, with kinetics studies showing that Zn is gradually released to soil from Zn-OMFs Consequently, Zn diffusion and initial content in soil solution were reduced in Oxisols
  • Humic substances biological activity at the plant-soil interface
    HS have positive effects on plant physiology by improving soil structure and fertility and by influencing nutrient uptake and root architecture The biochemical and molecular mechanisms underlying these events are only partially known
  • Interactions of Zn(II) Ions with Humic Acids Isolated from . . .
    Statistical analysis also revealed significant impact of some properties of HAs on complexation reactions with zinc ions Understanding these relationships can be helpful in prediction of the ecological effects of adding Zn as a soil nutrient or in preparation of optimal Zn-humic acid fertilizers
  • Effect of Humic acid and levels of Zinc and Boron on Chemical . . .
    The results indicated: Concentration of total and available Zinc associated with carbonate minerals, with oxides, and with organic matter in soil increased with increasing levels of Zinc added to soil, reaching 8 638, 1 049, 1 971, 1 658 and 1 625 mg kg-1 soil, respectively
  • Effect of Humic substances on soil properties and crop . . .
    Humic Acid can be integrated into the soils in the form of manure, it improves the physical properties of the soil Advantage of humate based fertilizers to the soil is that the producer can again become a steward of the soil by developing a more ecologically sound agricultural production system (Ravichandran 2011)
  • Humic Acid and Returning Soil To A Healthy State - SoilBiotics
    Humic acid also increases ion exchange capacity in the soil, which leads to better retention and utilization of soil nitrogen By supplying the soil with sufficient humic acid, we can bind cations (positively charged elements) and increase cation exchange capacity Humic acid can chelate positively charged





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