Results 101 to 110 of about 88,059 (210)

Nitrogen: Multiple and Regional Impacts [PDF]

open access: yes
This report on the emission and deposition of nitrogen in the United States discusses both natural and man-made sources of nitrogen compounds, particularly oxides of nitrogen (NOx).

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Effect of Nitrogen Fertilization and Liming on Rye-Ryegrass Yield and Soil pH Dynamics [PDF]

open access: yes
Using ammonium based nitrogen fertilizers in crop production has been shown to acidify soils. Lime used to correct soil pH is an important cost to producers.
Biermacher, Jon T.   +3 more
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Chemical composition of the humus layer, mineral soil and soil solution of 150 forest stands in the Netherlands in 1990 [PDF]

open access: yes
A nationwide assessment of the chemical composition of the humus layer, mineral topsoil (0-30 cm) and soil solution in both topsoil and subsoil (60-100 cm) was made for 150 forest stands in the year 1990.
Leeters, E.E.J.M., Vries, W., de
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Changes in soil characteristics under different aged plantations of Corsican pine (pinus nigra) at Chopwell Woodland Park, Gateshead, UK [PDF]

open access: yes
This study examines the pedogenic processes and temporal changes occurring in soils across six different aged plantations of Corsican pine (Pinus nigra), which were otherwise similar in their environmental characteristics, including geology, slope angle ...
Acheson, B., Mellor, Antony
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