��� Ahmed, Z. I., M. Iqbal and K. S. Khan. 2003. Effects of mulching and planting geometry on wheat yield and yield components under rainfed conditions. Pak. J. Arid Agri. 6(1): 29-33.

Ahmed, Z. I., Z. U. Arif, M. A. Malik and N. Minhas. 2004. Influence of root nodule bacteria and nitrogen fertilizer on yield of mashbean (L.). Pak. J. Agri., Agril .Engg. Vet. Sc. 20(2): 16-20.

Ahmed, Z. I., K. Mehmood, C. A. Rauf and F. Zahoor. 2005. Effects of SOP, FYM, and wheat straw on leaf and soil moisture contents under kharif maize (Int. J. Biol. Boitech. 2(1): 181-185.

Mehmood, K., Z. I. Ahmed and K. S. Khan. 2005. Maize growth as influenced by different manures in Pothwar tract (Pakistan). Int. J. Agri. Biol. 7(3): 521-523.

��� Mehmood, K., Z. I. Ahmed and M. Iqbal. 2005. Effect of different organic and inorganic fertilizers on yield and yield components of maize. Pak. J. Arid Agric. 8(1): 27-30.

Ahmed, Z. I., M. S. Anjum and C. A. Rauf, 2006. Effect of Rhizobum inoculation on growth and nodule formation of green gram. Int. J. Agri. Biol. 8(2): 235-237.

Anjum, M. S., Z. I. Ahmed and C.A. Rauf. 2006. Effect of Rhizobum inoculation and nitrogen fertilizer on yield and yield components of mongbean. Int. J. Agri. Biol. 8(2): 238-240.

Malik, M. A., M. Irfan, Z. I. Ahmed and F. Zahoor. 2006. Residual effect of summer grain legumes on yield and yield components of wheat. Pak. J. Agri., Agril. Engg., Vet. Sc. 22(1): 9-11.

�� Khalid, R., K. S. Khan, M. Yousaf, M. Younas and Z.I. Ahmad. 2007. Sulphur status of soils and contribution of rainfall to soil supphur in Pothwar regions. Pak. J. of Agri. Res. 20 (3-4):142-147.

�� Ahmed, Z. I., M. Ansar, M. Iqbal and N. M. Minhas. 2007. Effect of planting geometry and mulching on moisture conservation, weed control and wheat growth under rainfed conditions. Pak. J. Bot. 39 (4):1189-1195.