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Effect of microbial inoculants and earthworm on microbiological and chemical characteristics of organic fertilizers produced from agricultural residues
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Abstract: The aim of this study is to produce compost using rice straw as raw material. Ten treatments were prepared by adjusting the C/N ratio of the rice straw either by addition cattle dung or ammonium sulphate. The mixtures were supplemented with phosphate and potassium either in organic or inorganic forms. The effect of addition of bio-accelerator as the fungal inoculant that consisted of dual cultures of Trichoderma harzianum NRRL 13019 and Phanerochaete chrysosporium NRRL 6359 was also considered. Another set of the same 10 treatments was prepared by adding Eisenia fetida after the thermophilic phase i.e when the temperature steadily reached 30 oC. The earthworms were added to each of the plastic bin, which containing the pre-composted materials. The composting process was continued in both sets up to 16 weeks. Tea was prepared using compost and vermicompost which were produced from the best four treatments. A pot experiment was carried out under greenhouse conditions, during the growth seasons of January 2011. This experiment was designed to study the effect of addition of compost, vermicompost, compost tea and vermicompost tea, produced from the best selected treatments on the growth of common sage (Salvia officinalis L.). The growth was measured in terms of fresh and dry weights (g / plant). The essential oil percentage, total N, P and k percentages were also determined at the end of each cut. Results were statistically analyzed. The obtained results revealed that the plants of common sage (Salvia officinalis L.) which were treated with vermicompost of rice straw, supplemented with cattle dung, rock phosphate, feldspar and fungal bio-accelerator (treatment no. 7) showed their highest values of shoots fresh and dry weight, oil, N, P, K% compared with the other tested treatments.
Key Words: Rice straw, Compost, Vermicompost, Compost tea, Vermicompost tea, Earthworm, Eisenia fetida, Common sage (Salvia officinalis), Bio-accelerator
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| URL |
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| Publication year |
2014
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| Availability location |
كلية الزراعة جامعة عين شمس
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| Availability number |
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| Organization Name |
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| Country |
Egypt
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| Publisher |
Name:
قسم الميكروبيولوجيا الزراعية - كلية الزراعة - جامعة عين شمس
Place:
كلية الزراعة - جامعة عين شمس بشبرا الخيمة /القليوبية
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| Author(s) from ARC |
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| Agris Categories |
Soil biology
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AGROVOC
TERMS |
Agricultural wastes.
Chemicophysical properties.
Oligochaeta.
Organic fertilizers.
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| Publication Type |
Master Thesis
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