000 02651cab a2200289Ia 45 0
001 u199371
003 SIRSI
008 111002s2004 ua ss b eng d
040 _aEAL
041 _aeng
_bara
090 _aART BFACU V55 No3 7
100 1 _aAI-Moshileb, A.M.
240 1 0 _aBulletin of Faculty of Agriculture. Cairo University, 2004 v. 55 (3)
_h[electronic resource].
245 1 0 _aEffects of chemical and bio-fertilization on the growth and the chemical constituents of spinach plants
_h[electronic resource].
246 1 5 _aتأثير التسميد الكيميائى والحيوى على النمو والمحتوى الكيميائى لنبات السبانخ.‪
300 _ap.443-458.
504 _aIncludes reference.
520 _aConsumption of spinach with high nitrate and oxalate contents may be a health hazard to infants and adults. The crop accumulates N03-N and oxalic acid, when grown in a soil with high N03-N availability. Therefore, pot experiments were designed during the two successive years of 2000 and 2001 to evaluate the effects of different nitrogenous fertilizers, chemical and bio-fertilizers as well as their combinations on nitrate and oxalate in spinach. One objective of this study was to develop a mean for fertilization for maximum growth with useful components and minimum nitrate and oxalate contents. The trials involved 6 application ratios of the chemical fertilizer "Sangral" and the bio-fertilizer "nitrobine" 0/0, 100/0, 75/25, SO/50, 25/75 and 011 00). Results indicated that growth (monitored by the number of leaves, leaf area, fresh and dry weights) was enhanced when plants were provided with a mixture of chemical and biofertilizer, compared with the control or both fertilizers as single treatments. Nitrate concentration was reduced by SO/50 N-mixture compared with higher ratios of chemical fertilizer. Total and free oxalate in spinach leaves were reduced also by N-mixture of 50/50 compared with no N or either N form alone. The highest vitamin (vit. B 1, vit. B2, vit. C) and element (Ca, P, Fe) concentrations were found at 50/50 N¬-mixture with chemical and bio-fertilizer application. The data suggest that fertilization of N as a mixture of chemical and bio fertilizers (SO/50 ratio)
546 _aSummary in Arabic.
650 0 _aSpinach
_xGrowth.
650 0 _aSpinach
_xFertilizers.
650 0 _aBiofertilizers.
650 0 _aSpinach
_xComposition.
773 0 _tThe Bulletin Faculty of Agriculture, Cairo University.
_g2004.v.55(3)
_x0526-8613
_7nnas
_wu158095
856 4 0 _uhttp://nile.enal.sci.eg/EALE/2004/BFACU/5504/3/443.pdf
_zFull Text Article
596 _a1
942 _cAR
_2lcc
999 _c52076
_d52076