In order to make clear the effect of straw mulch on yield and water utilization of Spring maize in the south mountainous area of Ningxia, a field experiment including three differents straw mulch treatments were studied in Wangwa village Pengyang County in 2005-2006. This paper analyzed relationship between yield, yield components and water use efficiency under different straw mulch treatments. The results showed that it could improve capability of soil holding water, water use efficiency and many parameter...
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