1. Introduction

   OriginalPaper Pages: 1 - 1

2. Remineralization for sustainable agriculture: A tropical perspective from a Brazilian viewpoint

   • O.H. Leonardos
   • S.H. Theodoro
   • M.L. Assad

   OriginalPaper Pages: 3 - 9

3. Factors influencing the release of plant nutrient elements from silicate rock powders: a geochemical overview

   • A.D. Harley
   • R.J. Gilkes

   OriginalPaper Pages: 11 - 36

4. Effect of plant types on release of mineral potassium from gneiss

   • J.G. Wang
   • F.S. Zhang
   • X.L. Zhang

   OriginalPaper Pages: 37 - 43

5. Release of potassium from K-bearing minerals: Effect of plant roots under P deficiency

   • J.G. Wang
   • F.S. Zhang
   • Y.P. Cao

   OriginalPaper Pages: 45 - 52

6. Crushed rocks and mine tailings applied as K fertilizers on grassland

   • A.K. Bakken
   • H. Gautneb
   • K. Myhr

   OriginalPaper Pages: 53 - 57

7. Powdered granite is not an effective fertilizer for clover and wheat in sandy soils from Western Australia

   • M.D.A. Bolland
   • M.J. Baker

   OriginalPaper Pages: 59 - 68

8. Initial effects of lime and rock powder application on soil solution chemistry in a dystric cambisol – results of model experiments

   • E.E. Hildebrand
   • H. Schack-Kirchner

   OriginalPaper Pages: 69 - 78