![Contribution of @a-amino N to extractable organic nitrogen (DON) in three soil types from the Scottish uplands [An article from: Soil Biology and Biochemistry]](https://www.ebooknetworking.net/books/B00/0RR/bigB000RR3CSS.jpg)
Contribution of @a-amino N to extractable organic nitrogen (DON) in three soil types from the Scottish uplands [An article from: Soil Biology and Biochemistry]
Price not available for Germany
You can still browse on Amazon. Try another country above.
Book Details
Author(s)
J.P. Paul, B.L. Williams
Publisher
Elsevier
ISBN / ASIN
B000RR3CSS
ISBN-13
978B000RR3CS3
Marketplace
Germany 🇩🇪
Description
This digital document is a journal article from Soil Biology and Biochemistry, published by Elsevier in 2005. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
Organic nitrogen (DON) was extracted from two improved pasture soils, one of which had been re-colonized by acid heath vegetation, and a blanket peat. Although the quantities extracted in H"2O, 10mM CaCl"2", 500mM K"2SO"4 and 50mM Na"2HPO"4 were not consistent, mean extractable DON as a proportion of total N was greater in the two grazed pastures (0.4%) than in the peat (0.2%). Averaged over the four extractants, free @a-amino N was greater in the peat and least in the improved pasture soil and accounted for 26% of DON in the peat and less than 5% in the mineral soil. Amino N increased after 6M HCl hydrolysis, and this combined N contributed 56% to DON in extracts of the mineral soil compared with only 36% in the peat This variation in the relative contributions of free and combined amino N to DON indicated qualitative differences in the composition of DON between the three soils.
Description:
Organic nitrogen (DON) was extracted from two improved pasture soils, one of which had been re-colonized by acid heath vegetation, and a blanket peat. Although the quantities extracted in H"2O, 10mM CaCl"2", 500mM K"2SO"4 and 50mM Na"2HPO"4 were not consistent, mean extractable DON as a proportion of total N was greater in the two grazed pastures (0.4%) than in the peat (0.2%). Averaged over the four extractants, free @a-amino N was greater in the peat and least in the improved pasture soil and accounted for 26% of DON in the peat and less than 5% in the mineral soil. Amino N increased after 6M HCl hydrolysis, and this combined N contributed 56% to DON in extracts of the mineral soil compared with only 36% in the peat This variation in the relative contributions of free and combined amino N to DON indicated qualitative differences in the composition of DON between the three soils.
