EVALUATION OF SOME SOIL PROPERTIES AND BARLEY PLANT CHARACTERS AS AFFECTED BY LOW IRRIGATION WATER QUALITY | ||||
| Journal of Soil Sciences and Agricultural Engineering | ||||
| Article 5, Volume 29, Issue 9, September 2004, Page 5385-5398 PDF (1.01 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jssae.2004.243803 | ||||
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| Author | ||||
| M. EI-D. EI-Sodany, | ||||
| Soil, Water and Environment Research Inst. Agric. Res. Center, Giza, Egypt. | ||||
| Abstract | ||||
| This study was conducted during the two successive winter seasons of (2001 I 2002 and 2002 J 2003) at El-Gernmeiza Agric. Res. Station, EI·Gharbia Govemorate, in a pot experiment ( 50 em in height and 40 cm in diameter ). The experiment was carried out in open system under prevailing natural conditions and cultivated by barley seeds variety Giza 123. The experiment was designed to study the effect of different salinity levels of irrigation water on some soil properties and to evaluate the efficiency of barley plants 10 grow under irrigation water salinity stress. Randomized complete block design with three replicates were used. The obtained results could be summarized as follOWS:· 1· The values of bulk density, settling percentage, saluration percentage. moisture content just before harvesting. soil moisture content retained at field capacity and wilting point and soil capillary pores were increased as a result of increase irrigation water salinity levels. While, the values of total porosity, hydraulic conductivity, available water and soil large and medium pores were decreased by incredslng salinity levels. 2· The use of high saline irrigation water lead to an increases in soil pH, EC, SAR, SSP, soluble ions (Ca, Mg, Na, CI and SO.) and exchangeable cations (Ca and Na) values. While, the values of exchangeable cations (Mg and K) were decreased by increasing salinity levels. But, there were no clear trend in soluble K and HC03 with the different salinity levels. 3· Generally, the use of saline irrigation water leads to deterioration of soil physical and chemical properties. So, to avoid salt accumulation in the soil, they masl be dissolved and removed by leaching to allow percolation through the entire root zone. This can be accomplish by leaching in long term periods as needed to reduce the accumulation of salts where the salt balance is achieve in soil. 4· The salinity stress gave highly significant decrease in the values of growth characters for barley plants such as plant height and spike length as compared to the control in the two seasons. 5· There were marked depressions in the values of No. and weight of grains per spike in the two seasons as a result of using high salinity in irrigation water. 6· The biological. straw and grain yields were decreased with increasing irrigation water salinity levels for two seasons. 7· The proline content values of barley straw and Na content of grains and straw were increased with increasing irrigation water salinity levels. While, the values of barley Ca, Mg and K content for grains and straw were decreased with increasing salinity levels. 8· The results revealed that Giza 123 barley variety was resistance to salt stress with Increasing irrigation water salinity levels to 7500 ppm. AI 10000 ppm salinity level, the vegetative growth, yield and yield components were depressed. | ||||
| Keywords | ||||
| Low water quality; soil physical and chemical properties; barley plant; growth characters; yield components | ||||
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