Three representative and different composts were selected and used in this work: a green compost (GC), a mixed compost (MC) and a green coffee compost (GCC). The three composts were characterized by means of conventional methods for several chemical and physical properties, including pH, electrical conductivity (EC), moisture and ash contents, total organic carbon (TOC) content, total N content, C/N ratio and humic acid-like (HAL) content. Seeds of slickspot peppergrass ...
Experimental Five humic acid (HA) samples isolated from the two original (collected in the field) Wyoming soils in duplicate, Guernsey North (GN4+5 and GN6) and Guernsey South (GS4+5 and GS6), and one Utah soil, Dugway (D11+12+13+14), and seven HA samples isolated from the same soils but collected in duplicate or triplicate from control (no plants grown) greenhouse pots (GN-A and GN-B, GSA and GS-B, D-A, D-B and D-C), object of ...
Slickspot peppergrass (Lepidium papilliferum) is a reported rare ephemeral endemic plant found in the United States in Southwest Idaho's high desert (Idaho Natural Heritage Program). The main objective of this research was to identifying and evaluating the effects of several naturally occurring humic acids (HAs) in Idaho soils on seed germination and seedling early-growth of slickspot peppergrass, and their possible relations to the compositional, structural and functional characteristics of humic ...
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