𝔖 Bobbio Scriptorium
✦   LIBER   ✦

The determination of boron in soil extracts, plant materials, composts, manures, water and nutrient solutions

✍ Scribed by Wolf, Benjamin


Book ID
120272320
Publisher
Taylor and Francis Group
Year
1971
Tongue
English
Weight
428 KB
Volume
2
Category
Article
ISSN
0010-3624

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Determination of nitrogen in agricultura
✍ S. H. Yuen; A. G. Pollard πŸ“‚ Article πŸ“… 1954 πŸ› John Wiley and Sons 🌐 English βš– 515 KB

## Abstract The total nitrogen content of plant tissue may be determined by direct nesslerization of sulphuric acid‐hydrogen peroxide digests with accuracy up to 5%. Similar application to soil extracts involves somewhat greater errors. In a spectrophotometric study of the Nessler colour, a filter