| Preface | |
| Acknowledgements | |
| Introduction | |
| Inorganic Compounds Tested for Evaluation of Their Inhibiting Effect on Soil Urease Activity, Urea Hydrolysis, Ammonia Volatilization, and Nitrous Oxide Emission | p. 5 |
| Heavy Metal Compounds | p. 5 |
| Light Metal Compounds | p. 19 |
| Salts of Alkali Metals and Alkaline Earth Metals | p. 20 |
| Boron Compounds | p. 30 |
| Fluorides | p. 33 |
| Arsenic Compounds | p. 34 |
| Sulfur Compounds | p. 35 |
| Other Inorganic Compounds | p. 42 |
| Organic Compounds Tested for Evaluation of Their Inhibiting Effect on Soil Urease Activity, Urea Hydrolysis, Ammonia Volatilization, and Nitrous Oxide Emission | p. 43 |
| Organic Mercury Compounds | p. 43 |
| Organo Boron Acid Compounds | p. 45 |
| Formaldehyde | p. 46 |
| Hexamethylenetetramine | p. 47 |
| Urea Derivatives | p. 47 |
| Dithiocarbamates | p. 52 |
| Thiuram Disulfides and Sulfides | p. 56 |
| Xanthates | p. 58 |
| Hydroxamic Acids | p. 60 |
| Maleimides | p. 66 |
| Maleic Hydrazide | p. 69 |
| Mucochloric Acid | p. 69 |
| Bromo-Nitro Compounds | p. 70 |
| Heterocyclic Sulfur Compounds | p. 71 |
| Monohydric Phenols | p. 78 |
| Polyhydric Phenols and Quinones | p. 82 |
| Thiopyridine-N-Oxides, Thiopyridines, and Thiopyrimidines | p. 101 |
| N,N'-Dihalo-2-Imidazolidinones and N-Halo-2-Oxazolidinones | p. 103 |
| [gama]-L-Glutamyl Nitroanilides | p. 104 |
| Phosphoro(Mono)Amidates, Phosphorodiamidates, and Thiophosphorodiamidates | p. 105 |
| 2-Amine-2-Oxide-1,3,2-Benzodioxaphosphole and Its Phosphorodiamidic Acid Esters | p. 138 |
| Polyphosphorodiamides | p. 139 |
| Oximated O-Diaminophosphinyl Derivatives | p. 140 |
| Oxidized Diaminophosphinyl Sulfur Derivatives | p. 140 |
| Diamidophosphorothiolate and Diamidothiophosphorothiolate Compounds | p. 141 |
| Phosphoric Triamides and Thiophosphoric Triamides | p. 142 |
| Cyclotriphosphazatriene Derivatives | p. 155 |
| Phosphorylated 2-Oximinophenylacetonitrile Compounds | p. 160 |
| 2-Thiono-5,5-Dimethyl-1,3,2-Dioxaphosphorinane Compounds | p. 161 |
| Antimetabilites | p. 162 |
| Natural Products | p. 165 |
| A Miscelleneous Group of Organic Compounds | p. 178 |
| Combined Use of Inhibitors of Soil Urease Activity | p. 179 |
| Combined Use of Heavy Metal Compounds with Other Inhibitors | p. 179 |
| Combined Use of Formaldehyde or Another Aldehyde with other Inhibitors | p. 179 |
| Combined Use of Hexamethylenetetramine (HMTA) with Other Inhibitors | p. 180 |
| Combined Use of Dithiocarbamates with Other Inhibitors | p. 180 |
| Combined use of Hydroxamic Acids with Other Inhibitors | p. 180 |
| Combined Use of Polyhydric Phenols and Quinones with Other Inhibitors | p. 180 |
| Combined Use of Phenylphosphorodiamidate (PPDA) with Other Inhibitors | p. 181 |
| Combinations Containing Humic Substances | p. 183 |
| Combinations Containing Lignosulfonates | p. 184 |
| Comparative Studies on the Efficiency of Different Inhibitors on Soil Urease Activity | p. 187 |
| Comparison of Heavy Metal Compounds with Other Inhibitors | p. 187 |
| Comparison of Alkaline Earth Metal Salts with Other Inhibitors | p. 188 |
| Comparison of Inorganic Boron Compounds with Other Inhibitors | p. 188 |
| Comparison of Inorganic Sulfur Compounds with Other Inhibitors | p. 189 |
| Comparison of Organic Mercury Compounds with Other Inhibitors | p. 190 |
| Comparison of Urea Derivatives with Other Inhibitors | p. 191 |
| Comparison of Polyhydric Phenols and Quinones with Other Inhibitors | p. 191 |
| Comparison of Phenylphosphorodiamidate (PPDA) with Other Inhibitors | p. 193 |
| Comparison of Phosphoric Triamide (PTA) and Thiophosphoric Triamide (TPTA) Compounds with Other Inhibitors | p. 198 |
| Comparison of Cyclotriphosphazatriene (CTPAT) Derivatives with Other Inhibitors | p. 220 |
| Compounds Tested for Evaluation of Their Inhibiting Effect on Both Soil Urease Activity and Nitrification | p. 221 |
| Effect of Nitrification Inhibitors on Soil Urease Activity | p. 221 |
| Urease Inhibitors also Possessing Nitrification-Inhibiting Capacity | p. 233 |
| Soil Urease Inhibitors Used in Combination with Nitrification and/or Algal Inhibitors | p. 243 |
| Combined Use of Urease and Nitrification Inhibitors | p. 243 |
| Combined Use of Urease and Algal Inhibitors | p. 247 |
| Combined Use of Urease, Nitrification, and Algal Inhibitors | p. 249 |
| Effect of Soil Urease Inhibitors on Germination, Growth, and Yield of Plants | p. 251 |
| Effect of Urease Inhibitors on Maize (Zea mays) | p. 251 |
| Effect of Urease Inhibitors on Wheat (Triticum aestivum) | p. 263 |
| Effect of Urease Inhibitors on Rice (Oryza sativa) | p. 280 |
| Effect of Urease Inhibitors on Barley (Hordeum vulgare) | p. 288 |
| Effect of Urease Inhibitors on Oats (Avena sativa) | p. 292 |
| Effect of Urease Inhibitors on Rye (Secale cereale) | p. 294 |
| Effect of Urease Inhibitors on Sorghum (Sorghum bicolor) | p. 295 |
| Effect of Urease Inhibitors on Grasses | p. 297 |
| Effect of Urease Inhibitors on Leguminous Plants | p. 313 |
| Effect of Urease Inhibitors on Other Plants | p. 315 |
| Effect of Urease Inhibitors on Other Enzyme Activities, Microbial Counts, and Biomass as well as on Respiration and Other Microbial Processes in Soils | p. 321 |
| Effect of Urease Inhibitors on Other Enzyme Activities in Soils | p. 321 |
| Effect of Urease Inhibitors on Microbial Counts and Biomass as well as on Respiration and Other Microbial Processes in Soils | p. 329 |
| Use of Urease Inhibitors in the Analysis of Urea and/or Ammonium from Urea-treated Soils | p. 343 |
| Urease Inhibitors Used with Another Purpose than Inhibition of Soil Urease Activity | p. 347 |
| Urease Inhibitors as Fertilizers | p. 347 |
| Urease Inhibitors Used for Controlling Ammonia (and Odor) Emission from Livestock Wastes | p. 352 |
| Urease Inhibitors Used for Preventing Toxicity of Urea-Amended Fodders | p. 353 |
| Urease Inhibitors Used for Treatment and Prevention of Some Human Diseases | p. 356 |
| Urease Inhibitors Used for Preventing Acid Mine Drainage | p. 358 |
| Conclusions | p. 359 |
| References | p. 361 |
| Subject Index | p. 393 |
| Table of Contents provided by Blackwell. All Rights Reserved. |
