Ecology, Environment and Conservation Paper

Vol 24, Issue 2 2018; Page No.(621-627)

APPLICATION OF CHICKEN MANURE COMPOST AS ORGANIC FERTILIZER TO IMPROVE THE QUALITY AND PRODUCTIVITY OF POTATO (SOLANUM TUBEROSUM L.)

YohanesSetiyo, KetutAyuYuliadhi, I GustiAyuLaniTriani, I Dewa GdeMayunPermana, Ida BagusWayanGunamand NyomanSemadi Antara

Abstract

This research aimed to improve quality and productivity of potatoes by implementation Low External Input Supply Agriculture (LEISA) system with application of compost from chicken manure as organic fertilizer. The experiment was carried out by applying five dose compost made from chicken manure andit was combined with NPK (Nitrogen, Phosphorus and Potassium) fertilizers. The dose of NPK fertilizers was 250 kg ha-1, whereas the dose of the compost was 10, 12.5, 15, 17.5 and 20 tons ha-1. The microbes population was 3.2 x 103 to 9.9 x 107CFU/g soil with pH 6.6 to 6.8. The soil Cation Exchange Capacity (CEC)number lied in the range of 24 to 27.6 me per 100 g soil. The addition of the 17.5 tons ha-1 compost fertilizer was able to increasing the productivity of the potatoes to 29.3 tons ha-1 and the quality of super class potatoes to 16.7%.

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