Vermicompost: An Eco-Friendly Technology for Crop Residue Management in Organic Agriculture

摘要

Vermicompost production was carried out under laboratory and field condition during 2015 at Shahid chamran University, Ahvaz, Iran. The experimental design was factorial with 4 replications. First factor included 4 different crop residues (e.g. rice, corn, wheat and sugarcane) and second factor included 3 weight ratios (e.g. 30, 40 and 50%). The highest total earthworm weight (352/3 gr) belonged to vermicompost produced by wheat residue with 50% weight ratio. The highest total earthworm numbers (7193) belonged to vermicompost produced by rice residue with 30% weight ratio. The highest vermicompost fertilizer (3288.6 gr) produced from used wheat residue with 50% weight ratio, which this treatment had the best converting factor (83/2%). The highest (188.5 g/m~2) Mung bean grain yield belonged to vermicompost produced by rice residue with 40% weight ratio. We concluded that vermicompost produced from crop residues had better biological situation than produced from manure or directly use of crop residue. Also, different crop residues as a base substrate had different effects on final vermicompost fertilizer.