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Comparison of chemical tests for estimation of the availability of soil zinc

✍ Scribed by D. C. Martens; G. Chesters

Publisher
John Wiley and Sons
Year
1967
Tongue
English
Weight
662 KB
Volume
18
Category
Article
ISSN
0022-5142

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The technique and application of plant tissue tests for the availability of soil phosphate
✍ S. H. Yuen; A. G. Pollard πŸ“‚ Article πŸ“… 1951 πŸ› John Wiley and Sons 🌐 English βš– 443 KB πŸ‘ 1 views

## Abstract The chemical tissue test for phosphate using the Morgan reagent was examined. The time of extraction was very critical, the phosphate extracted being in linear relationship to time up to four hours. The first extraction (15 minutes) removed phosphate varying from 3 to 21% of the total