1. Movement and distribution of fertilizer nitrogen as affected by depth of placement in wetland rice

   • WN Obcema
   • SK De Datta
   • FE Broadbent

   OriginalPaper Pages: 125 - 148

2. Nitrate and glasshouse vegetables

   • JPNL Roorda Van Eysinga

   OriginalPaper Pages: 149 - 156

3. Efficiency of modified urea fertilizers for tropical irrigated rice

   • JC Flinn
   • CP Mamaril
   • K Kaiser

   OriginalPaper Pages: 157 - 174

4. The tolerance of a grass forage, grown in pots, to urea applied to calcareous soils under very hot, dry conditions

   • IA Ayed
   • AS Mashhady

   OriginalPaper Pages: 175 - 180

5. Dynamics of ammonia volatilization from simulated urine patches and aqueous urea applied to pasture I. Field experiments

   • RR Sherlock
   • KM Goh

   OriginalPaper Pages: 181 - 195

6. Q/I relationship of potassium in two soils of long-term experiments

   • AN Ganeshamurthy
   • CR Biswas

   OriginalPaper Pages: 197 - 201

7. Optimum phosphate and potassium levels in potato tops

   • J Prummel
   • PA Von Barnau-Sijthoff

   OriginalPaper Pages: 203 - 211

8. Varietal differences for reaction to high soil acidity and to trace elements; a survey of research in The Netherlands

   • J Mesdag
   • AG Balkema-Boomstra

   OriginalPaper Pages: 213 - 233