Estimation of the contribution of biological N2 fixation to twoPhaseolus vulgaris genotypes using simulation of plant nitrogen uptake from15N-labelled soil Robert M. BoddeySabine H. MüllerBruno J. R Alves OriginalPaper Pages: 169 - 185
Mussoorrie rock phosphate-pyrite mixture as phosphate fertilizer S. N. SharmaR. Prasad OriginalPaper Pages: 187 - 191
The effect of ionic strength on soil P reactions is negligible P. R. Ernani OriginalPaper Pages: 193 - 197
European soils overfertilized with phosphorus: Part 1. Basic properties E. BarberisF. Ajmone MarsanJ. Torrent OriginalPaper Pages: 199 - 207
Effect of climate on the recovery in crop and soil of15N-labelled fertilizer applied to wheat C. J. Pilbeam OriginalPaper Pages: 209 - 215
A modified urea based NP fertilizer: urea-TSP-MAP combinations M. X. FanA. F. MacKenzieH. D. Blenkhorn OriginalPaper Pages: 217 - 220
Estimating nutrient surplus and nutrient use efficiency from farm characteristics J. W. A. LangeveldG. B. Overbosch OriginalPaper Pages: 221 - 233