1. PXRF in Tropical Soils: Methodology, Applications, Achievements and ChallengesSergio Henrique Godinho Silva, Bruno Teixeira Ribeiro, Marcelo Braga Bueno Guerra, Hudson Wallace Pereira de Carvalho, Guilherme Lopes, Geila Santos Carvalho, Luiz Roberto Guimaraes Guilherme, Mauro Resende, Marcelo Mancini, Niton Curi, Rogerio Boguete Alves Rafael, Valeria Cardelli, Stefania Cocco, Giuseppe Corti, Somsubhra Chakraborty, Bin Li and David C. Weindorf2. Quantitative Estimation of Carbon Dynamics in Terrestrial Ecosystems Using Natural Variations in the Abundance of Soils and BiotaPhillip M. Chalk, Fabiano C. Balieiro and Deli Chen3. The Effect of Elemental Sulfur Fertilization on Plant Yields and Soil PropertiesGrzegorz Kulczycki4. Environmentally Friendly Agronomically Superior Alternatives to Chemically Processed Phosphate Fertilizers: Phosphate Rock/Sulfur/Acidithiobacillus spp. combinationsS. S. S. Rajan and Martin P. Upsdell5. Automation in Drip Irrigation for Enhancing Water Use Efficiency in Cereal Systems of South Asia: Status and ProspectsRavneet Kaur Sidhu, Ravinder Kumar, Parshant Singh Rana and M. L. Jat
