Analysis On Nutrition Elements Of Abundance And Less Situation Of Juglans Regia4xinwenl85’ Production Garden In Wushi County, Xinjiang

One of the main characteristics of fruit trees walnut as fruit industry development in Wushi County,Xinjian, which early walnut varieties Juglans regia ’Xinwen185’ majority, and has gradually into theflourishing. However, for a long time due to producers and managers lack of awareness of abundance andless situation of J. regia ‘Xinwen185’ production garden, a general lack of proactive awareness of theproduction garden fertilization and management of soil nutrients, walnut yield per unit area is low, nutquality is not high and so on, which is very prominent. Therefore, J. regia ‘Xinwen185’ in Wushi country,Xinjiang, in flourishing period, was taken as the research object. Under the conditions of generalproduction management, field sampling and chemical analysis of laboratory experiments has combined. Onthe basis of dynamic concentration of element in leaf under different periods to determine the samplingtime, based on high, medium and low-yield production of garden leaf concentrations of nutrients, J. regia’Xinwen185’ DRIS leaf nutrition diagnosis index system has been established by Diagnosis andRecommendation Integrated System, and that analysis evaluated abundance and less situation of J. regia‘Xinwen185’ production of garden, in the eight main planting township of walnut in Wushi County. Themain results are as follows:The J. regia ’Xinwen185’ throughout the growing period N, P, K, Cu and Zn content in leaf elementconcentration overall a decline trend. Ca, Mg, Fe and Mn element presented a gradual rise trend. Changesin mid-august and late fruit maturity leaf nearly stable concentrations of nutrients,as the J.regia’Xinwen185’ sampling period of leaf DRIS diagnosis.The J.regia ’Xinwen185’ DRIS diagnostic indices of N, P, K, Ca, Mg, Fe, Mn, Cu and Zn is made upof37diagnostic indices, consisting of6single-element concentration indices and31leaf nutrition elementconcentration ratio indices.The6single-element concentration indices are K, Ca, Mg, Fe, Mn, and Zn, andthe31leaf nutrition element concentration ratio indices are N/Mg, N/Fe, N/Mn, N/Zn, P/N, P/Zn, K/N, K/P,K/Ca, K/Mg, K/Fe, K/Mn, K/Cu, K/Zn, Ca/N, Ca/P, Ca/Fe, Ca/Cu, Ca/Zn, Mg/P, Mg/Fe, Mg/Zn, Fe/Mn,Fe/Cu, Mn/P, Mn/Ca, Mn/Mg, Mn/Cu, Mn/Zn, Cu/Mg and Cu/Zn.The preliminary study said that the appropriate range of nutrition concentrations of J.regia’Xinwen185’ is N for (22.22―26.85)g/kg, P for (3.87―4.94) g/kg, K for (4.28―8.03)g/kg, Ca for (61.21―91.51)g/kg, Mg for (16.70―24.79)g/kg, Fe for (341.72―430.86)mg/kg, Mn for (214.96―398.59)mg/kg,Cu for (12.23―13.86)mg/kg and Zn for (38.79―46.60)mg/kg. The J.regia ’Xinwen185’ garden is mainlyin lack of Ca, Mg and Mn, while N, P, K, Fe, Cu and Zn are mainly to an adequate supply. Tree nutritiondeficiency and imbalance is widespread, urgent need to strengthen the production of garden fertilizer andsoil nutrient management.