Effects of length of forest fallow on fertility dynamics in a Mexican ultisol G. WadsworthH. M. ReisenauerM. J. Singer OriginalPaper Pages: 151 - 156
Interactions among nitrogen-transforming bacteria and nitrogen-fixingPisum sativum L. in laboratory sand columns Russell K. HynesLouise M. Nelson OriginalPaper Pages: 157 - 167
Estimating the chemical compositions of soil solutions by obtaining saturation extracts or specific 1:2 by volume extracts C. SonneveldJ. Van den EndeS. S. De Bes OriginalPaper Pages: 169 - 175
Response of seeds ofLupinus termis andVicia faba to the interactive effect of salinity and ascorbic acid or pyridoxine M. A. ShaddadA. F. RadiM. M. Azooz OriginalPaper Pages: 177 - 183
Physico-chemical characteristics of humic substances of major soil associations of Bihar (India) B. MishraL. L. Srivastava OriginalPaper Pages: 185 - 191
Temperature-dependent nitrogen transformations in acid oak-beech forest litter in the Netherlands I. M. EmmerA. Tietema OriginalPaper Pages: 193 - 196
The effect of moisture on the decomposition rate of cattle manure H. K. MurwiraH. KirchmannM. J. Swift OriginalPaper Pages: 197 - 199
MULTCOMP: A computer program for preparation and chemical speciation of multicomponent saline solutions T. M. Abu-ShararM. B. Zughul OriginalPaper Pages: 201 - 206
Growth and nitrogen fixation ofAzolla pinnata andAzolla caroliniana as affected by urea fertilizer and their influence on rice yield A. B. MannaP. K. Singh OriginalPaper Pages: 207 - 212
Mycorrhizal dependence of four crops in a P-sorbing soil J. KrikunJ. H. HaasR. Kinsbursky OriginalPaper Pages: 213 - 217
Response ofZea mays andLycopersicon esculentum to the ethylene precursors, L-methionine and L-ethionine applied to soil Muhammad ArshadW. T. Frankenberger OriginalPaper Pages: 219 - 227
The management of populations of vesicular-arbuscular mycorrhizal fungi in acid-infertile soils of a savanna ecosystem J. C. DoddI. AriasD. S. Hayman OriginalPaper Pages: 229 - 240
The management of populations of vesicular-arbuscular mycorrhizal fungi in acid-infertile soils of a savanna ecosystem J. C. DoddI. AriasD. S. Hayman OriginalPaper Pages: 241 - 247
Growth and nodulation of tropical food legumes in dilute solution culture R. W. BellD. G. EdwardsC. J. Asher OriginalPaper Pages: 249 - 258
Prediction of fertilizer phosphate requirement using the Langmuir adsorption maximum Ahmed A. MehadiRobert W. TaylorJames W. Shuford OriginalPaper Pages: 267 - 270
Comparison of two serpentine species with different nickel tolerance strategies Poberto GabbrielliT. PandolfiniM. R. Palandri OriginalPaper Pages: 271 - 277
Rapid bioassay of aluminum toxicity in soil J. L. AhlrichsM. C. KarrR. J. Wright OriginalPaper Pages: 279 - 285
The effects of nitrate:ammonium ratios and nitrapyrin on the nitrogen response ofZea mays L. under field conditions F. G. AdriaanseJ. J. Human OriginalPaper Pages: 287 - 293
Spectral reflectance ratio of rice canopy for estimating crop nitrogen status M. TakebeT. YoneyamaT. Murakami Short Communication Pages: 295 - 297
The nature of the interference potential ofPluchea lanceolata (DC) C B Clarke (Asteraceae) InderjitK. M. M. Dakshini Short Communication Pages: 298 - 302