Liquid Biofertilizer Case Study

The study of shelf life for liquid biofertilizer from vegetable waste showed that contrary to the traditional advice that liquid biofertilizers produced from fermentation by effective microorganisms, should be used within three months of production, the liquid biofertilizer produced from vegetable waste still contains high amount of viable microbial population after four months of storage with no significant effect of the presence or absence of light (Ngampimol and Kunathigan, 2008). The most common technologies for optimizing the products of anaerobic digestion includes the pretreatment of the substrates, biological approaches, co-digestion of substrates with other wastes, and the use of serial digesters (Andriani, Wresta and Atmaja, 2014).
reduces the costs toward fertilizers use especially regarding nitrogen and phosphorus • Supplement to fertilizers. • They are eco-friendly and pose no damage to the environment (Ghumare et al., 2014). Disadvantages of biofertilizers • Specific to the plants • Rhizobium spp. Culture does not work well in high nitrate tolerant strains of soya bean • The acceptability of bio-fertilizers has been rather low chiefly because they do not produce quick and spectacular responses • Require skill in production and application • Difficult to store • Inadequate awareness about its use and benefits (Ghumare et al., 2014). Biofertilizers and organic fertilizers Bio-fertilizer itself explains fertilizer that is made up of biological components, living organisms that synthesize the atmospheric plant nutrient in the soil or in the plant body, or create such an atmosphere in the soil or in the medium (in which the organisms are kept) which are helpful for the plants. The biofertilizers may be in solid or liquid medium and microorganisms are in huge numbers, (e.g. 10-7 cells /g). These means that the nutrients made available to the plants by the help of microorganisms are