. Bulletin. Natural history; Natural history. Fig. 2.—Concentrations of nitrogen in various forms observed at Station 3 (0 m) in Lake Sangchris. phosphorus composition of surface runoff as affected by tillage methods. They compared five tillage-planting systems: coulter-plant, till-plant, chisel-plant, disk and coulter-plant, and conventional plant. The authors observed that the coulter and chisel systems controlled soil loss (reflected as turbidity or suspended solids in Lake Sangchris), but runoff contained high levels of soluble nitrogen Fig. 3.—Forms of phos- phorus and total nitrogen obse
. Bulletin. Natural history; Natural history. Fig. 2.—Concentrations of nitrogen in various forms observed at Station 3 (0 m) in Lake Sangchris. phosphorus composition of surface runoff as affected by tillage methods. They compared five tillage-planting systems: coulter-plant, till-plant, chisel-plant, disk and coulter-plant, and conventional plant. The authors observed that the coulter and chisel systems controlled soil loss (reflected as turbidity or suspended solids in Lake Sangchris), but runoff contained high levels of soluble nitrogen Fig. 3.—Forms of phos- phorus and total nitrogen observed at Station 3 (0 m) in Lake Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Illinois. Natural History Survey Division. Urbana, State of Illinois, Dept. of Registration and Education, Natural History Survey Division
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Keywords: ., booka, bookcentury1900, bookdecade1910, booksubjectnaturalhistory
