Catherine J. Watson

TL;DR: In this paper, the authors evaluated the ability of the urease inhibitor N -n-butyl thiophosphoric triamide (nBTPT) to reduce NH 3 volatilization from surface-applied urea.

TL;DR: In this paper, the effect of rate and mode of application of the urease inhibitor N-(n-butyl) thiophosphoric triamide (nBTPT) (coating the urea granule, adding to the Urea melt or adding to urea ammonium nitrate (UAN) solutions) on NH 3 volatilization from urea, at three temperatures (5, 15 and 25 °C), with four contrasting soil types.

TL;DR: In this paper, the effects of repeated synthetic fertilizer or cattle slurry applications at annual rates of 50, 100 or 200 m3-m3-ha−1-yr−1 over a 38-year period were investigated with respect to herbage yield, N uptake and gross soil N dynamics at a permanent grassland site.

TL;DR: In this paper, the importance relative des different chemins concurrents pour l'ion ammonium, a savoir les processus microbiens de nitrification (N) and d'immobilisation (I), a suggeree comme le facteur principal controlant les pertes d'azote a partir des sols.

TL;DR: In this paper, Nitrous oxide emission factors (EFs) were calculated from measurements of emissions from UK wheat crops and grassland, that were part of a wider research programme on N loss pathways and crop responses.