TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Method: In composting biopiles semi-static to obtain a substrate wetting low density, the starting materials are selected from waste from sugar mills, waste from agave, waste corn, straw cascarillas of grasses and grains of wheat, corn, rice and barley. Also, the starting materials are selected from sugar cane bagasse, filter cake, or slurry filtration. The step of providing material for the start include a proportion of filter cake or sludge filtration and cane bagasse or sugarcane bagasse pith in the proportion of 10:1 and 83:1, or 30:1 and 43:1. The starting materials include a mix of sludge filter cake or filtration and cane bagasse in a ratio of 43:1. Moreover, the formation of biopiles is on a bed of absorbent bagasse or straw around 50-60 cm thick. The method also comprises allowing standing the passage of the material which includes a start time that is one week. The addition of fresh lignocellulose is, in each dose of 0.75 and 5% by weight in relation to the weight of filter cake in the original mixture. The mix between initial and subsequent additions, the total added lignocellulose is a total weight equivalent to 6 and 35% of initial weight of filter cake fresh. The rest are also an additional week. Furthermore, the drying step for the stabilization of composted material is performed at room temperature until the material is composted with a humidity of 20 and 35%. The first repetition of the steps to add the fresh lignocellulose, mixing and allowing to stand the starting materials reached temperatures of 50-60 degrees C repetitions and during the subsequent steps of the lignocellulose add fresh, mixing and allowing to stand the materials initiation temperatures reach 65-85 degrees C. The method is carried out in the open in a time of 7-8 weeks. Furthermore, the method has a total interval humidity of 40-60% and total solids of 60-40% and drying under the sun was equilibria in less than 30%. The pH is 5-8, and the range is 0.21-0.48 g/ml. Also, the method has 80-130% of water holding capacity. Also, the granules are 21-30% of particles greater than 1.98 mm, 30-45% of particle size of 0.5-1.98 mm, and 10-30% of particles of 0.005-0.5 mm in size. The particle size distribution is very low density, high moisture retention, and water for the plant. The stop is 50-60%. Moreover, the materials are free due to the processing hangar on the high temperature of plant pathogens and weed seeds to seedlings. The material is as a single substrate or as a substrate for the main production plant in intensive farming systems under greenhouse and nursery. The material is for its application as a moisturizer and soil improver in agriculture. EXAMPLE - No suitable example given.