| 吴正保,哈地尔·依沙克,罗达.阿克苏地区灰枣叶片营养DRIS诊断[J].干旱地区农业研究,2023,(1):63~68 |
| 阿克苏地区灰枣叶片营养DRIS诊断 |
| Leaf nutrient diagnosis of jujube using DRIS in Aksu region |
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| DOI：10.7606/j.issn.1000-7601.2023.01.08 |
| 中文关键词: 灰枣 叶片 营养诊断 DRIS 阿克苏地区 |
| 英文关键词:jujube (Huizao) leaf nutrient diagnosis DRIS Aksu region |
| 基金项目:新疆维吾尔自治区红枣产业技术体系专项资金项目(XJCYTX-02)；新疆维吾尔自治区林业发展补助资金项目（XJLYKJ2021-12） |
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| 中文摘要: |
| 通过对新疆阿克苏地区31个成龄灰枣园叶样的采集与分析，运用诊断施肥综合法（DRIS）进行叶片营养诊断，旨在为该地区成龄灰枣的营养诊断和平衡施肥提供参考。结果表明，以7月中旬灰枣叶片N、P、K元素浓度测定值作为主要诊断依据，制定了DRIS指数法的营养诊断标准，经检验取得了较高的诊断正确率。按产量组统计施肥顺序，各组营养元素施肥顺序第一的枣园数及其频率分别为：高产组，N—4—37.0%，P—2—18.0%，K—5—45.0%；中产组，N—0，P—13—92.9%，K—1—7.1%；低产组，N—0，P—6—85.7%，K—1—14.3%。DRIS诊断的阿克苏地区灰枣叶片N、P、K营养元素浓度最佳比值范围分别：N/P=11.861±2.859、N/K=1.820±0.306、K/P=6.667±2.027。 |
| 英文摘要: |
| Through the collection and analysis of leaf samples from 31 mature jujube (Ziziphus jujuba Mill. cv. ‘Huizao’) orchards in Aksu, Xinjiang, the leaf nutrition diagnosis was carried out using the Diagnosis and Recommendation Integrated System (DRIS) method. This study would provide a reference for the nutritional diagnosis and balanced fertilization of mature jujube (Huizao) orchards in this area. The results showed that the nutritional diagnostic standard of DRIS index method formulated based on the measured values of N, P and K concentrations in the leaves of ‘Huizao’ collected in mid\|July had a high diagnostic accuracy. According to the statistical fertilization order of yield subpopulation, the number and frequency of the first fertilization order of nutrient elements in each subpopulation were as follows: high yield subpopulation, N—4—37.0%, P—2—18.0%, K—5—45.0%; middle yield subpopulation, N—0, P—13—92.9%, K—1—7.1%; and low yield subpopulation, N—0, P—6—85.7%, K—1—14.3%. The best ratio ranges of N, P and K concentrations in leaves of ‘Huizao’ in Aksu achieved using DRIS were N/P=11.861±2.859, N/K=1.820±0.306 and K/P=6.667±2.027, respectively. |
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