Effects of application of organic fertilizer on soil physicochemical properties and yield of sorghum-sudangrass
In order to reduce the amount of chemical fertilizer used and explore the effect of organic fertilizer on soil improvement and yield of sorghum-sudangrass,the fertilizer efficiency test of sorghum-sudangrass was carried out with chemical fertilizer,common organic fertilizer and organic inorganic mixture.The results showed that the combined application of organic fertilizer or organic inorganic fertilizer could increase the contents of soil organic matter,total nitrogen,available phosphorus,available potassium and alkali-hydrolyzed nitro-gen,improve the soil physical and chemical environment,improve soil fertility and increase the yield of sorghum-sudangrass.
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