Assessment of Electrolyte Release Characteristics from Nutripellet Pack Technique
2014
Muthukrishnan, R. | Arulmozhiselvan, K. | Padmavathi, T.
Nutripellet pack is a tubular assembly composed of fertilizer pellet, manure pellet and bioinoculants. Laboratory experiments were conducted to assess the permittivity of polyester coated (polycoat) paper pack used for encapsulation of fertilizer pellet of the Nutripellet pack, and to find out rate of nutrient release. Nutripellet Pack technique is a way of deep placing fertilizer in the root zone simultaneously when sowing the seed. A Laboratory experiment with Nutripellet pellet pack technique was conducted atDepartment of Soil Science and Agricultural Chemistry, TNAU, Coimbatore to evaluate the rate of electrolytes released from Nutripellet Pack with fertilizers, chemical additives and plant based gels. Release of electrolytes or nutrients through polycoat paper used for the encapsulation of fertilizer pellet at periodical intervals was found out. During the period of 16 days, out of added electrolytes, fertilizer pack containing NPK fertilizer mixture with SSP, denoted as NP(SSP)K, released 16.4 per cent of electrolytes and NP(SSP)K + sago released 53.7 per cent. Release of electrolytes from fertilizer pack containing DAP, denoted as NP(DAP)K, was 12.4 per cent which was found to be enhanced in NP(DAP)K + sago resulting in 31.4 per cent. Addition of sago to NPK boosted the release, whereas addition of silica gel was not effective in boosting electrolyte release from the pack. In the follow up study, it was confirmed that addition sago powder boosted the release. Addition of corn flour with NP(SSP)K fertilizer retarded the electrolyte release. However, addition of sago or corn flour to fertilizer mixture containing DAP was not effective.
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