A field experiment was conducted on the Earth-Cumulic-Orthic Anthrosols in south Loess Plateau to investigate the effects of nitrogen fertilization,cultivar,and cultivation mode on the leaf area index(LAI),diffuse non-interceptance(DIFN),and grain yield of winter wheat.The results showed that during the growth period,LAI increased first and decreased then,which was the highest in flowering but the lowest in maturing stage.Nitrogen fertilization improved the LAI significantly.DIFN had a change pattern revers...
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