A study of the available phosphorus status of soils by phosphorus-deficient tomato seedlings S. PattanaikD. J. Lathwell OriginalPaper Pages: 305 - 312
A comparison of manganese sources using tomato plants grown on marl, peat and sand soils J. G. A. FiskelG. A. Mourkides OriginalPaper Pages: 313 - 331
The influence of the environment on seed and seedling mortality John L. HarperPhyllis A. Landragin OriginalPaper Pages: 360 - 372
A new method for the simultaneous preservation of profiles and root systems J. J. SchuurmanM. A. J. Goedewaagen OriginalPaper Pages: 373 - 381
Preferential utilization of ammonium over nitrate by micro-organisms in the decomposition of oat straw S. L. JanssonM. J. HallamW. V. Bartholomew OriginalPaper Pages: 382 - 390
Characterization of soil phosphorus by anion exchange resin adsorption and P32-equilibration F. AmerD. R. BouldinF. R. Duke OriginalPaper Pages: 391 - 408