Hassan,, M., EI-Seifi, S., Omar, F., Saif EI-Deen, U. (2005). EFFECT OF MINERAL AND BIO-PHOSPHATE FERTILIZATION AND FOLIAR APPLICATION OF MICRONUTRIENTS ON GROWTH, YIELD AND QUALITY OF SWEET POTATO "Ipomoea batatas, L.": 1- VEGETATIVE GROWTH, YIELD AND TUBER ROOT CHARACTERISTICS. Journal of Plant Production, 30(10), 6149-6166. doi: 10.21608/jpp.2005.237536
M. A. Hassan,; S. K. EI-Seifi; F. A. Omar; U. M. Saif EI-Deen. "EFFECT OF MINERAL AND BIO-PHOSPHATE FERTILIZATION AND FOLIAR APPLICATION OF MICRONUTRIENTS ON GROWTH, YIELD AND QUALITY OF SWEET POTATO "Ipomoea batatas, L.": 1- VEGETATIVE GROWTH, YIELD AND TUBER ROOT CHARACTERISTICS". Journal of Plant Production, 30, 10, 2005, 6149-6166. doi: 10.21608/jpp.2005.237536
Hassan,, M., EI-Seifi, S., Omar, F., Saif EI-Deen, U. (2005). 'EFFECT OF MINERAL AND BIO-PHOSPHATE FERTILIZATION AND FOLIAR APPLICATION OF MICRONUTRIENTS ON GROWTH, YIELD AND QUALITY OF SWEET POTATO "Ipomoea batatas, L.": 1- VEGETATIVE GROWTH, YIELD AND TUBER ROOT CHARACTERISTICS', Journal of Plant Production, 30(10), pp. 6149-6166. doi: 10.21608/jpp.2005.237536
Hassan,, M., EI-Seifi, S., Omar, F., Saif EI-Deen, U. EFFECT OF MINERAL AND BIO-PHOSPHATE FERTILIZATION AND FOLIAR APPLICATION OF MICRONUTRIENTS ON GROWTH, YIELD AND QUALITY OF SWEET POTATO "Ipomoea batatas, L.": 1- VEGETATIVE GROWTH, YIELD AND TUBER ROOT CHARACTERISTICS. Journal of Plant Production, 2005; 30(10): 6149-6166. doi: 10.21608/jpp.2005.237536
EFFECT OF MINERAL AND BIO-PHOSPHATE FERTILIZATION AND FOLIAR APPLICATION OF MICRONUTRIENTS ON GROWTH, YIELD AND QUALITY OF SWEET POTATO "Ipomoea batatas, L.": 1- VEGETATIVE GROWTH, YIELD AND TUBER ROOT CHARACTERISTICS
Two field experiments were carried out at EI- Bramoon Agricultural Farm of EI- Mansoura Horticultural Research Station, during the summer seasons of 2002 and 2003. The study aimed at investigating the effects of some micronutrients; a mixture of ln, Fe and Mn, each at 100 ppm; bio-phosphate fertilizers, VAM fungus and Phosphorein, and mineral phosphate fertilizer at 0, 30~4 and 60 kg P20slfed., on sweet potato growth, yield and its components, as wei s tuber root Characteristics. Results showed that foliar application of micronutrt nts significantly improved vegetative growth parameters, except number of branches/plant, yield/plant, marketable and total yield/fed., as well as decreasing non-marketable yield/fed. Micronutrients also increased average weight and diameter of tuber roots, but did not affect tuber root shape (length/diameter). Increasing the supplied phosphate fertilizer level to 45 or 60 kg P205/fey! significantly improved vegetative growth parameters, yield/plant and marketable yield/fed., significantly decreased non-marketable yield, and increased average weight, diameter and length of tuber roots, but did not affect tuber root shape. The addition of bio-phosphorus fertilizers (Phosphorein or mycorrihza) resulted in significant increases in vegetative growth, total marketable yield and its "- components. Bio-phosphorus fertilizers also increased tuber root weight, diameter and length, but did not affect their shape. Positive interactions among micronutrients, mineral P-rates and bio- phosphorus fertilizers on studied characters were detected.
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