| The water and fertilizer interaction experiment was conducted at Shapotou Desert Experimental Research Station in northwest China, on purpose to coordinate the relation of water and fertilizer and to study out the optimal management pattern for spring wheat in the arid sandy land. The results indicated that in the arid land with warp soil, the optimal irrigation amount during the growth season of spring wheat was about 5 400 m3/hm2, i.e., 540 mm in depth of irrigating water quota for a overall of 10 times irrigation practice; The chemical fertilizers applied before sowing should be 272 kg/hm2 with the combination of N∶P2O5∶K2=99∶173∶0; The organic manure supplied should be around 14 993 kg/hm2, in which the organic matters content was 31.4%; And additionally, the two times of nitrogen compensation should be 70 kg/hm2. By combining the suitable management measures, a relatively higher yield (Y) of 3 250 kg/hm2 was achieved, and the harvest index (HI), water use efficiency (WUE) and unit water output (Ey) reached 40%, 1.5 g/kg and 0.6 kg/m3, respectively. This comprehensive management pattern is practicable in reclaiming and harnessing desert lands along Yellow River in northwest China. |