Management of coarse-textured soils for water conservation in rainfed lowland rice

amendement du sol compactage du sol conservation de l'eau cultivo de temporal culture pluviale enmiendas del suelo gestion des eaux lowland manejo del suelo mise en valeur du sol oryza sativa rainfed farming soil amendments soil compaction soil management soil texture tailandia textura del suelo texture du sol thailand tierras bajas water conservation water management