Effect of submergence on availability of certain plant nutrients in three Ultisol catenas R. R. WeilSh. Sh. Holah OriginalPaper Pages: 147 - 157
Interaction effects of insecticide combinations on the growth ofScenedesmus bijugatus andSynechococcus elongatus M. MegharajK. VenkateswarluA. S. Rao OriginalPaper Pages: 159 - 163
Woody species and nutrient accumulation during the fallow period of milpa farming in Belize, C.A. D. BrubacherJ. T. ArnasonJ. Lambert OriginalPaper Pages: 165 - 172
Effect of aluminium on the mineral nutrition of rice Tang van HaiTruong Thi NgaHenri Laudelout OriginalPaper Pages: 173 - 185
A simulation model for the fate of pesticide residues in a field soil Z. ShaabanA. M. Elprince OriginalPaper Pages: 187 - 195
Salinity and flooding level as determinants of soil solution composition and nutrient content inPanicum hemitomum T. C. FeijtelP. A. Moore Jr.I. Mendelssohn OriginalPaper Pages: 197 - 204
The response of rice to the growth and nitrogen fixation inAzolla caroliniana andAzolla pinnata at varying rates of phosphate fertilization D. P. SinghP. K. Singh OriginalPaper Pages: 205 - 209
Comparison of Bray I and Pi tests for evaluating plant-available phosphorus from soils treated with different partially acidulated phosphate rocks R. G. MenonS. H. ChienL. L. Hammond OriginalPaper Pages: 211 - 216
Mobilization of iron and other micronutrient cations from a calcareous soil by plant-borne, microbial, and synthetic metal chelators M. TreebyH. MarschnerV. Römheld OriginalPaper Pages: 217 - 226
Effect of nitrogen fertilization and cropping system of the reference crop on estimation of N2 fixation by vetch using15N methodology I. PapastylianouS. K. A. Danso OriginalPaper Pages: 227 - 233
Occurrence ofAzospirillum spp. in coconut-based farming systems S. K. GhaiGeorge V. Thomas OriginalPaper Pages: 235 - 241
Evaluation of15N methods to measure nitrogen transfer from alfalfa to companion timothy T. C. TaM. A. FarisF. D. H. Macdowall OriginalPaper Pages: 243 - 247
Estimation of nitrogen fixation and transfer from alfalfa to associated grasses in mixed swards under field conditions H. A. BurityT. C. TaB. E. Coulman OriginalPaper Pages: 249 - 255
Aluminium and manganese and their relation to calcium in soil solution and needles in three Norway spruce (Picea abies, L. Karst.) stands of Upper Austria M. KazdaL. Zvacek OriginalPaper Pages: 257 - 267
Toxin production by a rhizobacterialPseudomonas sp. that inhibits wheat root growth H. Bolton Jr.L. F. Elliott OriginalPaper Pages: 269 - 278
Characterization of a toxin produced by a rhizobacterialPseudomonas sp. that inhibits wheat growth H. Bolton Jr.L. F. ElliottJ. K. Fredrickson OriginalPaper Pages: 279 - 287
Influence of the ion-balance in the growth medium on the yield and alkaloid content ofDatura stramonium L. K. DemeyerR. Dejaegere OriginalPaper Pages: 289 - 294
The fate of nitrogen under maize and pasture cultivated on an alfisol in the western Llanos savannas, Venezuela J. M. HétierG. SarmientoJ. M. Thiéry OriginalPaper Pages: 295 - 302