Khalid Elzobair, Maryam ThabitAlkanami, Abdalla Alaswd 2018. Effects Of Manure Levels On Growth And Yield Of Yellow Corn In Sandy Soil Under Dry Climate. Journal of Pure & Applied Sciences . 16, 2 (Aug. 2018). DOI:https://doi.org/10.51984/jopas.v16i2.212.