Effect of different planting system on soil, water and rice productivity in the northern part of delta in Egypt [electronic resources].

Includes references.

Water scarcity and soil salinity are the main constrains for rice production in Egypt. Rice is the greatest consumer of water among all crops. A system of growing rice on raised beds or levees and system of rice intensification (intermittent irrigation system) where water is applied only in the furrows between beds, is hypothesized to reduce water input for rice. For water saving with considerable rice grain yield under newly reclaimed saline soil, two field experiments were conducted to innovate new rice planting technology at the experimental farm of El Sirw agriculture research station during two successive seasons of, 2011 and 2012. The system of rice cultivation technology were traditional transplanted with watering every four days as traditional methods (control treatment) up to 6 cm water depth, system of rice intensification (SRI) with intermittent irrigation system, dry rice seed on dry levees with watering as upland crop up to 30 days after sowing then shifting watering every four days up to 1 cm water depth and transplanted rice on levees with watering every four days up to 1 cm water depth. The used variety in this experiment was Giza 178 (drought and salt tolerant Egyptian rice variety). The soil was clayey in texture with salinity level of 6.5& 6.0 dS/m in 2011 and 2012 seasons, respectively. The obtained findings revealed that the different systems of rice planting and technology significantly showed variation in their impact on soil properties, yield and yield attributing characteristics of rice as well as saved water and water productivity in rice crop under ;such circumstances.

Summary in Arabic.

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