Improvement of salt affected lands through continuous cropping
2002
Chang, M.H. | Sipio, Q.A. (Pakistan Council of Research in Water Resources, Tandojam (Pakistan). Drainage Research Centre)
A research study on improvement and reclamation of salt affected soil through cultivation of summer and winter leguminous and grain/ fodder crops was conducted for three years from Rabi 1997-98 to Kharif 2000 crops at Nuclear Institute of Agriculture (NIA) Farm, Tandojam, under tile drainage system. The treatments tried were: berseem, followed by sorghum; mustard, followed by cluster bean; barley, followed by sesbania; and alfalfa followed by pearl millet. These treatments were replicated thrice. In Rabi season berseem and alfalfa, and in Kharif sesbania and cluster bean were green manured for improving the soil condition and organic matter content. The soil salinity and sodicity were decreased in all the treatments but green manured plots with sesbania in Kharif and berseem in Rabi had proved to be better in reclaiming the soil and adding organic matter. The treatments having sorghum in Kharif and barley in Rabi produced better crop yields. It is suggested that the farmers should continuously keep land under plow, grow leguminous crops for reclamation of salt affected lands and restore the soil productivity by adding organic matter through green manuring in their deteriorated soils.
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