MAIZE RESPONSE TO ZINC APPLICATION UNDER DEFFERENT PHOSPHORUS FERTILIZATION LEVELS, ITS NUTRIENTS UBTAKE, AND AVAILABILTY IN ALLOUVIAL SOILS | ||||
| Journal of Soil Sciences and Agricultural Engineering | ||||
| Article 15, Volume 34, Issue 5, May 2009, Page 5683-5704 PDF (770.82 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jssae.2009.93124 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| F. I. Zein; Asmaa A. El- Basuony; H. S. Hamoud | ||||
| Soil, Water, and Environment Research Institute, ARC, Egypt | ||||
| Abstract | ||||
| Two field experiments were conducted during two successive seasons 2006 and 2007 at the experimental farm of Sakha Agric. Rec. Station, Kafer El- Sheikh Government. The aim of this study was to investigate the influence of zinc addition 0, 10, and 20 Kg/ fad. For Zn0(S) (control), Zn10(S), and Zn20(S), respectively or foliar application with or without urea, 2% urea [U(F)], 500 ppm Zn [Zn (F)] and 2% urea + 500 ppm Zn [U+ Zn ( F)], respectively under different levels of phosphorus fertilization 30, 45, and 60 Kg p2o5 for P1, P2, and P3 respectively on maize yield and its chemical composition. Ratherfore soil content of P , Zn , Fe, and Mn. The experiments were conducted in split plot design where P levels were the main plot and Zn treatments as were sub plot with four replicates. The obtained results can be summarized as follows: the yield and its components of maize were significantly affected by P and Zn fertilizer treatments. Application of P3 increased grain yield by 12.0 and 12.5% and biomass by 17.6 and 13.8 compared to control treatment (P1)in 2006 and 2007 seasons. soil application of 10 Kg zn / fad. under P3 level gave the highest value of grain yield in the two seasons. and of the biomass in the first season, meanwhile [U+ Zn(F)] treatment gave the highest biomass value in the second season. While, the highest value of 1000 grain weight were obtained by [Zn0 (s)] and [U+ Zn (F)] treatments in the two seasons. the maximum values of P maize grain content were obtained by Zn20(S) treatment under P3 and P2 in the two seasons respectively. the maximum values of P maize stem content were obtained by [Zn10(s )]and [Zn (F)] treatments under P2 in the two seasons , respectively. the maximum values of zn maize grain content were obtained by [U+ Zn (F)] treatment under P2 level, while [Zn (F)] treatment gave the maximum maize stem zn content under P3 level in the two seasons. the maximum values of maize grain and stem Fe content were obtained by application of [U+ Zn(F)] treatment under P1 level in the two seasons except grain in the first season. The same treatment also gave the maximum values of Mn of maize grain and stem under P3 level except the stem in the first season. Translocation coefficient (TC%) of heavy metal from stem to grain can be arranged in the following decreasing sequence Zn > Mn> Fe. Available P, Fe, and Mn increased by increasing P fertilizer levels from P1 to P3, while available Zn increased by increasing P fertilizer levels from P1 to P2 but at P3 it decreased. [U+ Zn (F)] treatment gave the highest available P, Fe, and Mn, while the highest available Zn was obtained by [Zn20(s)] treatment. | ||||
| Keywords | ||||
| maize (Zea maize L.); phosphorus fertilizer; foliar application of Zn; and urea | ||||
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