Abstract
The paper is devoted to the analysis and evaluation of peculiar features of the water regime in loam-sandy soils of Oman. The total water volume taken up by potatoes has been determined in different modes of pre-irrigation soil moisture (70, 80% of MWC and 70-80-70% of MWC) and in dependence on the water-holding layer consisting of natural materials. It is shown that the most favorable conditions for water supply of potatoes, taking into account the economical use of irrigation water, can be created by differentiation of pre-irrigation soil moisture in inter-phase periods at a level of 70-80-70% of minimum water capacity (MWC). At the same time, sapropel should be used as a water-holding layer, which increases the potatoes yield at least by 10%.
Highlights
Поведен анализ особенностей водного режима супесчаных почв Омана
При орошении картофеля во многих странах мира используют в основном дождевание (Simmone, 2002; Amer, 2004; Tabook, 2006).Малообъемные способы орошения, в том числе капельное, применяются на небольших площадях без научного обоснования
Поддержание более высокого порога предполивной влажности почвы (80% НВ) приводило к более частому проведению поливов и большему значению оросительной нормы
Summary
5. Amer К.H., Hatfield J.L. Саnору rеsistance as affected bу soi аnd meteorological factors in potato // Agronomy J. Водная безопасность в Султанате Оман и проблемы, с которыми сталкивается его будущее // Первый научный форум по продовольственной безопасности и устойчивого развития. 7. Ministry of Agricultural and fisheries Wealth. Agricultural and livestock five year research strategy 2011–2015. Evaluation of an irrigation scheduling model for drip irrigated potato in southern United States // Hort Science. 9. Tabook M.A. Доклад об опыте Султаната Оман в области мониторинга и оценки борьбы с опустыниванием // Ежегодник Арабской организации сельскохозяйственного развития. THE INFLUENCE OF WATER-HOLDING LAYER ON THE WATER SUPPLY OF POTATOES IN LOAM-SANDY
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