Ditches

Evaluation of drainage models for tile drainage projects in Pakistan Amin Khan Tareen, Muhammad 1994 Field testing and evaluation of envelope materials for pipe drains Rafiq, Muhammad 1998 Head and discharge relationship for sharp-crest drainpipe weirs Nikkhah, Muhammad J.R. 1994 Hydrological analysis of flat canal irrigated agricultural areas Tayyab Husain 1998 The role of tile drainage in soil and water quality improvement in fourth drainage project Iyyaz Hussain Bukhari 1998