|Author:||Hussain, N. ; Sarwar, G. ; Khan, A. A. ; Mujeeb, F. ; Zaka, M. A.|
|Book Group Author:||NA|
Field studies were carried out at Pindi Bhattian, Pakistan, to investigate sustainable irrigation strategies for the local rice-wheat system using sodic/saline or sodic groundwater instead of freshwater. Because canal water shortage, techniques have been developed that significantly enhance the potential productivity (except where no chemical amendments or organic matter [control]). Grasses/legumes (Cyamopsis tetragonoloba, Sesbania aculeata, Sorghum bicolor, Diplachne fusca and Pennisetum glaucum) were grown and incorporated into sodic soil. Control and gypsum treatments were also kept for comparison. Two crops each of rice and wheat were grown in sequence. Sodic water was the sole source of irrigation for whole of the growing period. Gypsum proved the best treatment, followed by incorporation of the various legumes/grasses. Yield of second wheat and rice crops were higher than the initial crops - indicating a progressive improvement. Soil properties also improved significantly, and by the end of the fourth crop, these characteristics were brought almost within permissible limits. The studies showed that the rice-wheat cropping system can be kept sustainable through this practicable technology, and that the deleterious effects of using high RSC water can be controlled.
|Journal:||Transactions of the 19th International Congress on Irrigationand Drainage, Beijing, China, 2005. Vol 1B: Water quality, salinitymanagement|
cluster beans, crop yield, cropping systems, green manures,groundwater, guar, gypsum, intercropping, irrigation, irrigation water,land improvement, legumes, rice, saline soils, saline water, sodicsoils, sodic water, soil types, sustainability, wheat, Pakistan,Cyamopsis tetragonoloba, Diplachne fusca, Fabaceae, Oryza, Oryza sativa,Pennisetum glaucum, Sesbania aculeata, Sesbania cannabina, Sorghumbicolor, Triticum, Triticum aestivum, Oryza, Poaceae, Cyperales,monocotyledons, angiosperms, Spermatophyta, plants, eukaryotes,Triticum, Cyamopsis, Papilionoideae, Fabaceae, Fabales, dicotyledons,Sesbania, Sorghum, Diplachne, Pennisetum, South Asia, Asia, DevelopingCountries, Commonwealth of Nations, paddy, salt water, watering, SoilWater Management (Irrigation and Drainage) (JJ800) (Revised June 2002)[formerly Soil Water Management], Field Crops (FF005) (New March 2000),Water Resources (PP200), Fertilizers and other Amendments (JJ700), PlantCropping Systems (FF150), Plant Product