Nitrogen loss from different tillage systems and the effect on cereal grain yield P. E. BaconJ. R. Freney OriginalPaper Pages: 59 - 66
Recovery of15N from ammonium nitrate and algal biomass-amended soil K. R. SistaniR. W. TaylorK. R. Kelley OriginalPaper Pages: 67 - 73
Effect of rate and method of phosphate placement on productivity of durum wheat in mediterranean environments A. E. MatarS. C. Brown OriginalPaper Pages: 75 - 82
Effect of rate and method of phosphate placement on productivity of durum wheat in a Mediterranean climate A. E. MatarS. C. Brown OriginalPaper Pages: 83 - 88
The long-term residual value of rock phosphate and superphosphate fertilizers for various plant species under field conditions M. D. A. BollandA. J. WeatherleyR. J. Gilkes OriginalPaper Pages: 89 - 100
Fluctuations in soil moisture, and plant uptake of surface applied phosphate J. R. SimpsonA. Pinkerton OriginalPaper Pages: 101 - 108
Relative efficiency of ammonium polyphosphate and orthophosphates for wheat and their residual effects on succeeding cowpea fodder M. V. VenugopalanR. Prasad OriginalPaper Pages: 109 - 114
Solubility in system CO(NH2)2-NH4NO3-H3PO4-H2O Yong K. KimA. William FrazierCheryl L. Griffin OriginalPaper Pages: 115 - 121
Mercapto-pyridines and mercapto-pyrimidines as urease inhibitors R. J. RadelM. D. CrenshawH. M. Williams OriginalPaper Pages: 123 - 127