Kusmiyati et al, 2017. Application of Bioslurry Technology at Montongsari Village, Kendal Regency Central Java Province. JLSO 6(2):106-112.The dependence of farmers on inorganic fertilizers is increasing from year to year. The urea requirement for agriculture in 2015 was 3.795.596 tons, increased to 4.007.463 tons in 2016. Many efforts have been made to reduce farmer’s dependence on inorganic fertilizers. The activity purpose of Student Community Service-Community Empowerment Learning was to reduce farmer’s dependence on inorganic fertilizers by using bioslurry at Montongsari village, Kendal regency, Central Java. The activities were training, mentoring and demonstration plot. Training and mentoring activities were processing of biogas wastes into solid and liquid bioslury fertilizers and their application on plant. The treatments of demonstration plot were without and with liquid bioslurry on growth and production of water spinach (Ipomoea aquatica). The result of the mentoring activities showed a biogas reactor (capacity of 4 m3) will produce 18 kg of bioslury from 20-40 kg of goat dung. Nitrogen content (N), C-organic and C / N ratio of solid bioslury were 1.43%; 37.61% and 26.30, respectively. While nitrogen content of liquid bioslury was only 0.09%. There were no growth difference between aplication of liquid bioslurry and inorganic fertilizer on water spinach. The conclusion was bioslury of biogas waste both solid and liquid bioslury can be utilized as organic fertilizer for plants.
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