8Camp C R.Subsurface drip irrigation lateral spacing and management for cotton in the southeastern coastal plain[J]. Trans. of the ASAE, 1997, 40(4) :993 - 999.
9Caldwell D S. Frequency of irrigation for subsudace drip irrigation com[J].Trans.of the ASAE, 1994, 37(4):1099- 1103.
10El-Gindy. Vegetable crop response to surface and subsurface drip under calcarpus soil [J]. Proc. Int. Conf. on Evapotranspiration and Irrigation Scheduling, 1996.
