IMPACT OF WATER QUALITY AND IRRIGATION SYSTEM ON SOME NUTRIENT CONTENTS IN 80TH SOIL AND TOMATO PETIOLES. | ||
| Journal of Soil Sciences and Agricultural Engineering | ||
| Article 3, Volume 30, Issue 7, July 2005, Pages 4291-4302 PDF (1.73 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jssae.2005.235811 | ||
| Author | ||
| M. G. Rehan | ||
| Solis, Water. and Environment Research Institute, Agric. Res. Center. Giza; Egypt. | ||
| Abstract | ||
| Two field experiments were carried out during the two early-summer growing seasons of 2003 and 2004 on a sandy soil at El-Gebeel area. South Sinai to study the effect of both irrigation waler quality (WO) and surface drip (SO) or subsurface drip (S50) irrigation systems on nutrient levels in soil and tomato petioles. Five water resources with different salinity levels were used (W01 ;: 0.88 dS/m as control. W02 ;: 1.90. W03 ;: 3.98. W04 ;: 6.20. and W05 ;: 10.0Q dS/m) for irrigating tomato (Lycopersicon esculentum Mill cv. GS). Data obtained showed that petiole Nand P concentrations were significantly increased with increasing salinity levels of the applied irrigation water, while petiole K concentration exhlbited an opposite trend. On the other hand. micronutrients (i.e., Fe. Mn. Zn, and Cu) had no specific trend. As for the effect of irrigation system (IS), results revealed that SSD irrigated plants had petiole nutrient concentrations higher than those of SD irrigaled ones at any WO treatment. Distribution and concentrations of the studied nutrients in the soil were significantly influenced by WO. IS. soil depth, and their interaction effects, with the exception of Nand Cu for the later effect. | ||
| Keywords | ||
| Drip irrigation. Water quality; Tomatoes; Sandy soil | ||
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