1. Primary oxidation of organic matter in the soil

   • J. Drobník

   OriginalPaper Pages: 199 - 211

2. Primary oxidation of organic matter in the soil

   • J. Drobník

   OriginalPaper Pages: 212 - 222

3. Interrelationships between methods of spray application, retention, and weather conditions on the herbicidal efficiency of 2,4-dinitro-ortho-cresol

   • P. Riepma Kzn

   OriginalPaper Pages: 223 - 248

4. The action of 4,6-dinitro-o-cresol (DNOC) in soil

   • J. Bruinsma

   OriginalPaper Pages: 249 - 258

5. Interrelationships among iron, manganese, and molybdenum in the growth and nutrition of tomatoes grown in culture solution

   • R. K. Kirsch
   • M. E. Harward
   • R. G. Petersen

   OriginalPaper Pages: 259 - 275

6. Populations Microbiennes Des Bois

   • MM. F. Jacquin
   • F. Mangenot

   OriginalPaper Pages: 276 - 284

7. On the shape of the yield curve

   • J. Hagin

   OriginalPaper Pages: 285 - 296