EFFECT OF 	MINERAL AND 	BIO-PHOSPHATE 	FERTILIZATION 	AND FOLIAR 	APPLICATION OF MICRONUTRIENTS ON SWEET POTATO

Hassan,, M. A.; EI-Seifi, S. K.; Omar, F. A.; Saif EI-Deen, U. M.

doi:10.21608/jpp.2005.237539

	EFFECT OF MINERAL AND BIO-PHOSPHATE FERTILIZATION AND FOLIAR APPLICATION OF MICRONUTRIENTS ON SWEET POTATO "Ipomoea betetes, lo" 2- CHEMICAL COMPOSITION OF LEAVES AND CURED TUBER ROOTS.
Journal of Plant Production
Article 18, Volume 30, Issue 10, October 2005, Page 6167-6182 PDF (4.83 MB)
Document Type: Original Article
DOI: 10.21608/jpp.2005.237539
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Authors
M. A. Hassan,¹; S. K. EI-Seifi¹; F. A. Omar¹; U. M. Saif EI-Deen²
¹Dept. of Hort., Fac. of Agric., Suez Canal Univ. Ismailia, Egypt.
²Vegetable Res. Dept., Hort. Res. Inst., Agric Res. Center. Giza, Egypt.
Abstract
Two field trials were carried out in 2002 and 2003 seasons on sweet potato cv. Abeese, at EI-Bramoon Agric. Farm of EI-Mansoura Hort. Res. Station. The research aimed at studying the effect of foliar nutrition with a mixture of Fe, Mn and Zn, each at 100 ppm, vascular arbuscular mycorrhiza (VAM) and Phosphorein, as bio- phosphorus fertilizer, and mineral phosphate fertilizer at 0, 30, 45 and 60 kg P20slfed., on chemical composition of leaves and nutritional status of cured roots of sweet potato. Results indicated that foliar application of micronutrients significamly increased N contents of leaves and cured roots, P contents of cured roots and K contents of leaves, in both seasons. Also Fe, ln and Mn contents of both leaves and tuber roots Significantly increased in response to foliar spray with micronutrients. Using P₂0₅ at 60 kg/fed. as mineral fertilizer, or VAM, as bio-fertilizer resulted in best significant increases in N, P, K, Fe, Zn, and Mn, in leaves and cured roots, in both seasons. Organic composition, i.e., total carbohydrates, reducing, non-reducing, total carotenes and dry matter, of cured sweet potato roots were significantly increased as a result of treating plants with either micronutrients, or mineral phosphorus fertilizer at 30, 45 or 60 kg P20sl fed., or by VAM or Phosphorein as bio-phosphate fertilizer. Positive interactions among micronutrients, mineral P-rates and bio-phosphorus fertilizer, on chemical composition of leaves and cured roots were detected.


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EFFECT OF MINERAL AND BIO-PHOSPHATE FERTILIZATION AND FOLIAR APPLICATION OF MICRONUTRIENTS ON SWEET POTATO "Ipomoea betetes, lo" 2- CHEMICAL COMPOSITION OF LEAVES AND CURED TUBER ROOTS.