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Efficiency of fall-applied urea for barley: Influence of date of application

✍ Scribed by Malhi, S. S. ;Nyborg, M.


Publisher
Springer-Verlag
Year
1990
Tongue
English
Weight
374 KB
Volume
22
Category
Article
ISSN
1573-0867

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Uptake of foliar-applied urea by winter
✍ David S Powlson; Paul R Poulton; Niels E MΓΈller; Michael V Hewitt; Alexander Pen πŸ“‚ Article πŸ“… 1989 πŸ› John Wiley and Sons 🌐 English βš– 675 KB

A new 15N technique (termed the negative discard method) for measuring recovery of foliar-applied N by crops in the field is described. '5N-labelled fertiliser solution is sprayed on to a small area of crop, using a hand sprayer, while the surrounding area is sprayed with unlabelled N at the same ra