Chemical assessment of the zinc status of some soils of the semi-arid region of India Kuldeep SinghU. C. ShuklaS. P. S. Karwasra OriginalPaper Pages: 191 - 197
The influence of sward mass, defoliation and watering on ammonia volatilization losses from an Italian ryegrass sward topdressed with urea E. H. HoultJ. W. McGarity OriginalPaper Pages: 199 - 207
Slow-release urea fertilizers — effect on floodwater chemistry, ammonia volatilization and rice growth in an alkali soil D. L. N. Rao OriginalPaper Pages: 209 - 221
Single superphosphate-reactive phosphate rock mixtures. 1. Factors affecting chemical composition N. S. BolanM. J. HedleyR. W. Tillman OriginalPaper Pages: 223 - 239
Effects of N fertilizer rate, soil water tension and soil texture on growth and N uptake by maize (Zea mays L.) O. I. NnohamS. O. Odurukwe OriginalPaper Pages: 241 - 254
Evaluation and model of temperature and rainfall effects on response to N sources applied to grassland in spring M. HerlihyW. F. O'keeffe OriginalPaper Pages: 255 - 267
Predicting the effect of soil-water-air dynamics on ammonia volatilization from applied urea with a mechanistic model Rachhpal-Singh OriginalPaper Pages: 277 - 285