Organic waste composts as potential fertilisers for cereal prodktion in developing merket

Production of waste compost is well established in many European countries. In developing markets, however, the waste composts are not fully accepted as conventional organic fertilisers. The nutrient value of composts must be studied locally. The aim of the study was to investigate the potential fertilisation value of two composts for cereal production.

Two composts were compared. Compost I (C1) was produced from source separated food and green waste, and category III animal by-products; and composted in aerated covered static piles for 6 weeks. Compost II (C2) wasproduced from source separated food and green waste, and composted in static enclosed reactor during 2 to 3 weeks. Both composts were matured in open windows for minimum six months. The composts were mixed with mineral soil in volume 0%, 25%, 50%, and 100% of compost, and N-rates of 0 to 200 kg ha-1. The substrate chemical parameters and their effect to spring wheat germination and yield structure were studied in pot trials. Germination and aboveground biomass and number and mass of grainswere measured. Three-month experiment was carried out in controlled conditions in long day conditions (16 h light) and with mean air temperature 22°C in day time.

Further authors:

S. Vabrit - Estonian University of Life Sciences, Estland

Copyright:	© European Compost Network ECN e.V.
Quelle:	Orbit 2012 (Juni 2012)
Seiten:	6
Preis:	€ 6,00
Autor:	MSc Peeter Lääniste Dr. Mait Kriipsalu Helis Rossner Alar Astover

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