Stone mulch offers potential benefits for water conservation in many rain-fed agricultural systems of the arid regions. The effects of stone mulch on transpiration and grain yield were examined for a durum wheat crop grown under soil water deficit stress. In a greenhouse trial, stone mulches with two levels of ground coverage significantly decreased soil-surface evaporation and increased crop transpiration. The transpiration increase contributed to increases both in biomass and grain yield. Field experiments over two cropping seasons confirmed yield increases of 12% in soil half-covered and 24% in soil fully-covered by stones. These significant yield increases indicate the potential usefulness of stone mulch technology in rain-fed cereal cropping. It is suggested that stones should not be removed from cereal fields unless their presence obstructs management severely. It remains to develop technologies for effectively managing soils containing large numbers of sizable stones in order to obtain the benefits of the potential yield increase associated with their presence on the soil surface.
Deng, X.P., Shan, L., Inanaga, S., Inoue, M. 2005. Water-saving approaches for improving wheat production. J. Sci. Food Agr. 85:13791–388.
Inoue M. , 'Water-saving approaches for improving wheat production ' (2005 ) 85 J. Sci. Food Agr. : 13791 -388 .
Fairbourn, M.L. 1973. Effect of gravel mulch on crop yields. Agron. J. 65:925–928.
Fairbourn M.L. , 'Effect of gravel mulch on crop yields ' (1973 ) 65 Agron. J. : 925 -928 .
Hobbs, P.R. 2007. Conservation agriculture: what is it and why is it important for future sustainable food production? J. Agr. Sci. (Camb.) 145:127–137.
Hobbs P.R. , 'Conservation agriculture: what is it and why is it important for future sustainable food production? ' (2007 ) 145 J. Agr. Sci. (Camb.) : 127 -137 .
Li, X.Y. 2000. Soil and water conservation in arid and semiarid areas: The Chinese experience. Ann. Arid Zone 39:1–18.
Li X.Y. , 'Soil and water conservation in arid and semiarid areas: The Chinese experience ' (2000 ) 39 Ann. Arid Zone : 1 -18 .
Li, X.Y., Gong, J.D., Wei, X.H. 2000. In-situ rainwater harvesting and gravel mulch combination for corn production in the dry semi-arid region of China. J. Arid Environ. 46:371–382.
Wei X.H. , 'In-situ rainwater harvesting and gravel mulch combination for corn production in the dry semi-arid region of China ' (2000 ) 46 J. Arid Environ. : 371 -382 .
Li, X.Y. 2003. Gravel-sand mulch for soil and water conservation in the semiarid loess region of northwest China. Catena 52:1051–1027.
Li X.Y. , 'Gravel-sand mulch for soil and water conservation in the semiarid loess region of northwest China ' (2003 ) 52 Catena : 1051 -1027 .
Lightfoot, D.R. 1994. Morphology and ecology of lithic-mulch agriculture. Geogr. Rev. 84:1721–1785.
Lightfoot D.R. , 'Morphology and ecology of lithic-mulch agriculture ' (1994 ) 84 Geogr. Rev. : 1721 -1785 .
Mori, M., Inagaki, M.N. 2012. Root development and water-uptake under water deficit stress in drought-adaptive wheat genotypes. Cereal Res. Commun. 40:44–52.
Inagaki M.N. , 'Root development and water-uptake under water deficit stress in drought-adaptive wheat genotypes ' (2012 ) 40 Cereal Res. Commun. : 44 -52 .
Mori, M., Inagaki, M.N., Inoue, T., Nachit, M.M. 2011. Association of root water-uptake ability with drought adaptation in wheat. Cereal Res. Commun. 39:551–559.
Nachit M.M. , 'Association of root water-uptake ability with drought adaptation in wheat ' (2011 ) 39 Cereal Res. Commun. : 551 -559 .
Richards, R.A., Rebetzke, G.J., Condon, A.G., van Herwaadenet, A.F. 2002. Breeding opportunities for increasing the efficiency of water use and crop yield in temperate cereals. Crop Sci. 42:111–121.
Herwaadenet A.F. , 'Breeding opportunities for increasing the efficiency of water use and crop yield in temperate cereals ' (2002 ) 42 Crop Sci. : 111 -121 .
Ryan, J., Masri, S., Garabet, S., Diekmann, J., Habib, H. 1997. Soils of ICARDA’s agricultural experimental stations and sites: Climate, classification, physiological and chemical properties, and land use. ICARDA, Aleppo, 107 pp.
Sadras, V.O., Angus, J.F. 2006. Benchmarking water-use efficiency of rainfed wheat in dry environments. Aust. J. Agr. Res. 57:847–856.
Angus J.F. , 'Benchmarking water-use efficiency of rainfed wheat in dry environments ' (2006 ) 57 Aust. J. Agr. Res. : 847 -856 .
Tubeileh, A., Bruggeman, A., Turkelboom, F. 2008. Water-saving techniques practiced by olive growers in dry areas. Acta Hort. 791:4194–4223.
Turkelboom F. , 'Water-saving techniques practiced by olive growers in dry areas ' (2008 ) 791 Acta Hort. : 4194 -4223 .
Wang, Y.J., Xie, Z.K., Malhi, S.S., Vera, C.L., Zhang, Y.B., Wang, J.N. 2009. Effects of rainfall harvesting and mulching technologies on water use efficiency and crop yield in the semi-arid Loess Plateau, China. Agr. Water Manage. 96:374–382.
Wang J.N. , 'Effects of rainfall harvesting and mulching technologies on water use efficiency and crop yield in the semi-arid Loess Plateau, China ' (2009 ) 96 Agr. Water Manage. : 374 -382 .
Yang, Y.M., Liu, X.J., Li, W.Q., Li, C.Z. 2006.Effect of different mulch materials on winter wheat production in desalinized soil in Heilonggang region of North China. J. Zhejiang Univ. SCI. B 7:858–867.
Li C.Z. , 'of different mulch materials on winter wheat production in desalinized soil in Heilonggang region of North China ' (2006 ) 7 J. Zhejiang Univ. SCI. B : 858 -867 .
Zhang, H., Oweis, T., Garabet, S., Pala, M. 1998. Water-use efficiency and transpiration efficiency of wheat under rain-fed conditions and supplemental irrigation in a Mediterranean-type environment. Plant Soil 201:295–305.
Pala M. , 'Water-use efficiency and transpiration efficiency of wheat under rain-fed conditions and supplemental irrigation in a Mediterranean-type environment ' (1998 ) 201 Plant Soil : 295 -305 .