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Changes in quantity of mineral nitrogen in three grassland soils as affected by intensity of nitrogen fertilization

โœ Scribed by Prins, W. H.

Publisher
Springer-Verlag
Year
1980
Tongue
English
Weight
711 KB
Volume
1
Category
Article
ISSN
1573-0867

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โœ R. K. Cunningham; G. W. Cooke ๐Ÿ“‚ Article ๐Ÿ“… 1958 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 601 KB

## Abstract Concentrations of nitrateโ€ and ammoniumโ€N in both the surface (0โ€“9 in.) and the subsoil (9โ€“18 in.) of a heavy clayโ€loam were determined at intervals both on uncropped soil and under ryeโ€grass. On uncropped land, high levels of nitrate were maintained through wet periods which caused per