EVALUATION OF ORGANIC AND CHEMICAL FERTILIZERS EFFECT ON RHIZOSPHERE MICROFLORA AND POTATOES (SOLANUM TUBEROSUM.L) YIELD IN LOAMY SAND SOIL | ||||
| Arab Universities Journal of Agricultural Sciences | ||||
| Article 5, Volume 14, Issue 2, September 2006, Page 613-623 PDF (430.86 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ajs.2006.15320 | ||||
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| Author | ||||
| Abo-Sedera S.A.* | ||||
| Agricultural Microbiology Dept., National Research Center, Cairo, Egypt | ||||
| Abstract | ||||
| A field experiment was carried out in a newly cultivated soil at Falouga, El- Tahrir province, Behira governorate during the summer season (Spring plantation) of 2003 to investigate the effect of different organic manures (i.e. compost, F Y M or town refuse) each at rate of 20 ton/fed combined with the half recommended dose of mineral fertilizer (NPK) or 2 tons of chicken manure compared with the addition of the recommended dose of N P K at rate of 900, 400 and 200 Kg/fed ammonium sulphate, calcium superphosphate and potassium sulphate respectively. Application of organic manures, i.e. compost, FYM or town refuse each at the rate of 20 tons/fed combined with half amount of mineral fertilizer or 2 tons of chicken manure, increased total microbial count in soil at 60 days after planting compared to both uncultivated soil and chemical fertilized treatments. In this regard, the highest bacterial count was noticed in case of using FYM + chicken manure, while the highest count for total fungi and actinomycetes were recorded in the treatment of 20 tons compost + half amount of chemical fertilizer (NPK). In addition, using 20 ton compost + 2 tons of chicken manures/fed, reflected the highest dry matter yield, total nitrogen, phosphorus and potassium content in plant foliage as well as total tuber yield of potatoes compared with other tested treatments. | ||||
| Keywords | ||||
| NPK; compost; farmyard manure; Town refuse; chicken manure | ||||
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