Organic fertilizer sources improve the yield and quality attributes of maize (Zea mays L.) hybrids by improving soil properties and nutrient uptake under drought stress oleh Muhammad Nadeem Shah, David L. Wright, Shabir Hussain, Sypridon D. Koutroubas, Ramdeo Seepaul, Sheeja George, Shahkar Ali, Muhammad Naveed, Mehrab Khan, Muhammad Tanveer Altaf, Kamran Ghaffor, Khadim Dawar, Asad Syed, Rajalakshmanan Eswaramoorthy