TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Process: The fly ash is packed in a bag containing raw material with sufficient permeability to liquid having high concentration. The bag is soaked in livestock urine accumulation pond, adsorption of urine is performed till saturation, placed in a compost fermenter and fermented. Preferred Fertilizer: The fertilizer contains organic silicic acid fertilizer raw material, potassium containing compound and magnesium containing compound. ACTIVITY - Fertilizer. Crop growth improving effect of organic silicic acid fertilizer (obtained by adsorbing urine of cow to fly ash and fermenting) was evaluated as follows. The organic silicic acid fertilizer was dispersed in soil for upland crops, granulated and the soil was made fertile. The growth of plants in the organic silicic acid fertilizer treated soil and untreated soil were compared. The result showed that the fertilizer treated soil improved growth of crops e.g. paddy, compared to untreated soil.    ADMINISTRATION - The organic silicic acid fertilizer can be used in combination with potash fertilizer and magnesium fertilizer.    EXAMPLE - Mixture containing silicon dioxide (52.3%), aluminum oxide (26.6%), calcium oxide (9.4%), ferrous oxide (5.6%), potassium oxide (1.1%) and boron trioxide (0.4%) was used as fly ash. The fly ash (20 kg) was packed in a bag made of vinyl. 15 bags (total of 300 kg) were placed in urine accumulation pond (1000 kl cow urine) and left for 3 days, and the urine adsorbed fly ash-containing bag was placed in a fermenter. The fermented material having moisture content of 83% was fermented in an other fermenter, mixed with manure, adjusted to moisture content of 62%, primary fermentation was repeated for 10 days, until moisture content was set to 42%, fermented, air was supplied and secondary fermentation was performed for 7 days until moisture content was set to 36%. 90% of the product was returned to infiltration mixing tank, fermented air was supplied to tertiary fermenter and product was fermented for 50 days. Fermentation-ripening was performed, air was supplied for 88 days and final product (8 t/day) with moisture content of 20% was obtained. Potassium chloride (10 kg) and magnesium hydroxide (3 kg) were mixed with the fermented fly ash (organic silicic acid fertilizer) and fertilizer (100 kg) for paddy field was obtained. The obtained fertilizer effectively improved growth of crops e.g. paddy.