Nutrient Release Patterns from Compost, Vermicomposting, and Long-Term Effect on Soil Fertility Status

Abstract

The principal aim of this study was to examine the nutrient release pattern from two types of composts and long-term implications on soil fertility status. An incubation experiment was carried out in the laboratory to determine the nutrient release patterns from compost and vermicompost mixed with soil at different application rates of SC30, SC70, SC120 and SV30, SV70 SV120 respectively for 21 days. Initial pre-incubation analysis of the compost material used for the experiment showed that both the compost and vermicompost had high nutrient content. The results further revealed that the different rates of compost and vermicompost application to soil had significant influence on the slow, gradual release process, indicating the long-term effect the organic fertilizers could exert on soil fertility status

Glavni cilj ove studije je bio ispitivanje obrazca oslobađanja hranljivih materija iz dva tipa komposta i dugoročne posledice na status plodnosti zemljišta. Izvršen je eksperiment inkubacije u laboratoriji da bi se utvrdili obrasci oslobađanja hranljivih materija iz komposta i vermikomposta pomešanih sa zemljištem, pri različitim količinama kombinacijama primene SC30, SC70, SC120 i SV30, SV70 SV120, tokom 21 dan. Početne pre inkubacijske analize kompostnog materijala korišćenog za eksperiment pokazale su da i kompost i vermikompost imaju visok sadržaj hranljivih sastojaka. Rezultati istraživanja pokazuju da su različite količine unetog komposta i vermikomposta u zemljište imale značajan uticaj na spor, postepen proces oslobađanja, hranljivih materija, što ukazuje na dugoročni efekat koji organsko đubrivo može da ima na status plodnosti zemljišta.