Abstract
PurposeUsing different organic beds to produce vermicompost may influence on quality of vermicompost and its derived productions.MethodsA greenhouse experiment was conducted to compare the properties of vermicompost, vermiwash and vermicompost tea obtained from three types of organic beds consisted of cow manure, leaf meal and a combination of cow manure and leaf meal (1:1 w/w).ResultsCow manure vermicompost had more desirable effect on many measured traits toward leaf meal and combination of leaf meal and cow manure vermicomposts. Vermicompost tea obtained from three vermicompost types was richer in terms of macro and micro nutrients, C/N, percent of organic matter and organic carbon toward the vermiwash produced from the same vermicompost. Vermiwash and vermicompost tea produced from cow manure vermicompost were at first order in majority of measured traits toward others.ConclusionsGenerally vermicompost which was richer in nutrient concentrations affected intensively quality of vermiwash and vermicompost tea produced from it.
Highlights
Industry of domestic animals production, especially industrial dairies have led to produce an enormous value of organic wastes so far
The results indicated that maximum worms number (87.6 No./per bed) was recorded in the vermicompost produced from cow manure bed and the minimum (52.6 No./per bed) was observed in vermicompost produced from leaf meal
The results showed that, the highest values of organic matter and carbon were related to the vermicompost produced from cow manure which were 59.9 and 34.7%, respectively, and the lowest values of them were measured in vermicompost produced from leaf meal which were 35.6 and 20.6%, respectively (Table 3)
Summary
Industry of domestic animals production, especially industrial dairies have led to produce an enormous value of organic wastes so far. These organic wastes can be useful to apply in enhancing soil physicochemical properties and fertility (Bansal and Kapoor 2000). Vermiwash is the liquid gathered by passing water among a path of soil containing active worms and organic bed It is a combination of earthworm mucous discharges, nutrients, microorganisms and plant growth promoting materials (Gopal et al 2010). Vermiwash is produced by different methods in which, it is assumed that microbial activities and nutrients are transformed from vermicompost into its extraction This liquid partially comes from body of earthworm (as worms body contains plenty of water) and is rich in amino acids, vitamins, nutrients like nitrogen, potassium, magnesium, zinc, calcium, iron, and copper and some growth hormones like auxins and cytokines (Suthar 2010a). Leaf nutrition with vermiwash obtained from municipal wastes improved the photosynthesis activity, plant physiology and performance (Astaraei and Ivani 2008)
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