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首页> 外文期刊>The Indian Journal of Agricultural Sciences >Identification of the productivity-limiting nutrients of Xuxiang kiwifruit (Actiniadia chinensis) in China's central Shaanxi province by analyzing soil fertility and leaf elements
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Identification of the productivity-limiting nutrients of Xuxiang kiwifruit (Actiniadia chinensis) in China's central Shaanxi province by analyzing soil fertility and leaf elements

机译：通过分析土壤肥力和叶子元素，鉴定中国中部陕西省南仙猕猴桃（Actiniadia Chinensis）的生产率限制营养素

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摘要

A survey was initiated to identify the productivity-limiting nutrients of Xuxiang kiwifruit (Actiniadia chinensis Lindl.) orchards in central Shaanxi province in China during 2016-2017. For this purpose 149 kiwifruit orchards were selected for leaf sampling and 59 of them were randomly selected for soil analysis. These investigated orchards were divided into two subpopulations: high-productivity subpopulation (21 orchards) and low-productivity subpopulation (128 orchards) according to the fruit yield and appearance as well as vine growth performance. The nutrient concentrations in leaves of high-productivity subpopulation were used to compute the norms of the diagnosis and recommendation integrated system (DRIS), and in low-productivity orchards the order of nutrient requirement was found to be Zn>Mn>K>Fe>Cl>P>B>Ca>Mg>Cu>N. Among them, the deficient nutrients were Zn, Mn and K, while the excessive ones were N, Cu and Mg. However, the limiting elements in various locations and orchard ages differed. These results obtained from leaf analysis were further validated by soil fertility evaluation using sufficiency range, 94.9%, 83.1%, 76.3%, 32.2% and 23.7% of the orchards were high in pH, Ca, Mg, nitrate N and Cu respectively. By contrast, approximately 70% of the soils were low in Fe, Mn, Zn and Cl, and over 30% low in K, P and OM. Results obtained could be used for guiding the sustainably-integrated nutrient management for kiwifruit orchards in central Shaanxi and other regions with similar environmental conditions.
机译：2016 - 2017年陕西省中部陕西省南仙猕猴桃（Actiniadia Chinensis Lindl）的生产率限制营养，鉴定了一项调查。为此目的，选择了149个Kiwifruit果园，为叶片采样选择，其中59种随机选择土壤分析。这些调查的果园分为两种亚群：高生产率亚群（21个果园）和低生产率亚群（128株果园）根据果实产量和外观以及葡萄植物的增长性能。使用高生产率亚群叶片中的营养浓度来计算诊断和推荐综合系统（DRIS）的规范，并且在低生产率果园中，发现营养需求顺序是Zn> Mn> K> Fe> CL> P> B> Ca> Mg> Cu> n。其中，缺乏营养素是Zn，Mn和K，而过量的营养素是N，Cu和Mg。然而，各个地方和果园年龄的限制元素不同。通过充足范围的土壤肥力评估进一步验证了从叶片分析中获得的结果，94.9％，83.1％，76.3％，32.2％和23.7％的果园分别在pH，Ca，mg，硝酸盐N和Cu中高。相比之下，约70％的土壤在Fe，Mn，Zn和Cl中低，K，P和OM中超过30％。获得的结果可用于引导陕西中部猕猴桃果园的可持续综合营养管理和具有类似环境条件的其他地区。

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