Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Nonexchangeable ammonium

Mengel, K., and H.W. Scherer. 1981. Release of nonexchangeable (fixed) soil ammonium under field conditions during the growing season. Soil Sci. 131 226-232. [Pg.277]

Soil, nonexchangeable (fixed) ammonium Pretreat soil with KOBr-KOH, shake with 5 N HF-1N HCI for 24 hours Method 84-7, steam distillation with KOH, titration Not reported Not reported Bremner 1965... [Pg.165]

The NH4" ion is almost identical in size with the K ion. Ammonium fixation takes place in silicate clay minerals (Ulite, vermic-ulite) in a similar way as potassium fixation. The relative content of this nonexchangeable ammonium rises with soil depth. [Pg.72]

The igneous rocks commonly contained up to 78 p.p.m. of ammonium nitrogen, 85% of which, on the average, was nonexchangeable. Most mineral samples contained... [Pg.223]

TOTAL AMMONIUM AND NONEXCHANGEABLE AMMONIUM CONTENTS OF ROCK AND MINERAL SAMPLES (from ADAMS and STEVENSON,1964)... [Pg.223]

Yalon, D. H., and A. Feigin, 1970. Nonexchangeable ammonium ion in some clays and shales of krael. Israel J. Chem. 8 425-434. [Pg.96]

See other pages where Nonexchangeable ammonium is mentioned: [Pg.233]    [Pg.38]    [Pg.131]    [Pg.166]    [Pg.372]    [Pg.224]    [Pg.284]    [Pg.163]    [Pg.556]   
See also in sourсe #XX -- [ Pg.284 ]



SEARCH



© 2024 chempedia.info