Abstract: A row crop such as coffee plants is irrigated and fertilized by excavating the ground along each row of the crop to form a trench in which unglazed drainage tiles are laid in a row with cement-sand joints, covering the tile with soil and then applying in unsuccessive layers, phosphate fertilizer, soil, a straw and fertilizer mulch and soil to just below the top of the trench. Soil is embanked along the edge of the trench. Risers are provided at each end of the tile row and a riser is filled with water to allow the same to percolate toward the plants.