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Effect of Tillage Options and Straw Management on Crops Productivity and Soil Fertility in Rice-Wheat-Cropping Pattern: Rice-Wheat Crop Productivity. Pakistan Journal of Scientific & Industrial Research 2016, 59 (2), 69-74. https://doi.org/10.52763/PJSIR.BIOL.SCI.59.2.2016.69.74.