The combined application of organic and inorganic fertilizers significantly improved the physical and chemical properties of jujube orchard soil and the yield and quality of Ziziphus jujuba cv.Jinsixiaozao
Four treatments were set up,including single application of chemical fertilizer(T1),single application of organic fertilizer(sheep manure)(T2),combined application of 50%organic fertilizer nitrogen and 50%chemical fertilizer nitrogen(T3),and no fer-tilization control(CK).The effects of different fertilization methods on the physical and chemical properties of 0～20 cm soil in the ju-jube orchard and the yield and quality of Zizyphus jujuba cv.Jinsixiaozao were studied.The results showed that different fertilization treatments had different effects on the physical and chemical properties of 0～20 cm soil in the jujube orchard.Compared with CK and T1,the soil bulk density and pH of T3 decreased significantly(P<0.05),and the soil porosity,organic matter content,total nitrogen,total phosphorus,available nitrogen and available phosphorus content of T3 increased significantly(P<0.05).Compared with CK and T1,the appearance quality of jujube fruit in T2 and T3 was significantly improved,the longitudinal diameter and transverse diameter of jujube fruit treated with T2 and T3 were significantly increased(P<0.05),the content of total soluble sugar and VC in jujube fruit treated with T2 and T3 were also significantly increased,and the bad fruit rate of T2 and T3 was decreased.The single fruit weight and yield of each fertilization treatment were significantly higher than those of CK.The yield and net income of jujube fruit in T3 were the highest,and were significantly higher than those of T1(P<0.05).In conclusion,the combined application of 50%organic fertilizer ni-trogen and 50%chemical fertilizer nitrogen could effectively improve the physical and chemical properties of soil and significantly en-hance the yield and quality of jujube fruit.
organic fertilizerchemical fertilizersoil physical and chemical propertiesZizyphus jujuba cv.Jinsixiaozaoyieldquality
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