• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal International des Sciences de la Vigne et du Vin >PREDICTING THE OCCURRENCE OF IRON CHLOROSIS IN GRAPEVINE WITH TESTS BASED ON SOIL IRON FORMS
【24h】

PREDICTING THE OCCURRENCE OF IRON CHLOROSIS IN GRAPEVINE WITH TESTS BASED ON SOIL IRON FORMS

机译：基于土壤铁形态​​的测试预测葡萄柚中铁的绿化发生率

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Aims: Iron deficiency symptoms (leaf chlorosis and depressed growth) are common in grapevine growing on calcareous soils. The objective of this study was to investigate the relationships between these symptoms and the properties of Spanish vineyard soils.rnMethods and results: Soils from thirty vineyards with leaf chlorosis were used to pot '110 Richter' rootstock for three seasons. Mean leaf chlorophyll concentration, as measured via SPAD, was positively correlated with the soil content in poorly crystalline Fe oxides, as estimated by extraction with various reagents, and negatively correlated with the contents in calcium carbonate equivalent and active lime. Iron deficiency affected plant growth but none of the measured growth variables was correlated with soil properties. The relationships between SPAD and acid ammonium oxalate-, citrate/ascorbate-and unbuffered hydroxylamine-extractable Fe conformed to the linear-plateau model, from which clear-cut critical levels (345,425 and 8 mg kg~(-1), respectively) could be established. This was not possible with tests based on the alkalinity properties (e.g. the calcite ion activity product), the IPC (?Indice du pouvoir chlorosant?), and the DTPA-extractable Fe test, which generally exhibited a poor predictive value.rnConclusion: Tests based on reagents capable of extracting, in part or quantitatively, the most reactive forms of soil Fe were useful to estimate the risk of Fe chlorosis in grapevine. Acid ammonium oxalate, citrate/ascorbate and unbuffered hydroxylamine were the best extractants for this purpose.rnSignificance and impact of study: This study has shown the limited usefulness of tests based on the contents and reactivity of the soil carbonate to predict the occurrence of Fe chlorosis in grapevine; tests capable of estimating the contents of the labile soil Fe forms constitute the best alternative.
机译：目的：缺钙症状（叶萎黄和生长受阻）在钙质土壤上生长的葡萄中很常见。本研究的目的是调查这些症状与西班牙葡萄园土壤特性之间的关系。方法与结果：将三十个具有叶绿化现象的葡萄园的土壤用于“ 110 Richter”砧木种植三个季节。通过SPAD测得的平均叶绿素浓度与结晶度差的Fe氧化物中的土壤含量呈正相关，这是通过用各种试剂萃取得出的，而与碳酸钙当量和活性石灰的含量呈负相关。缺铁会影响植物的生长，但是没有一个测量的生长变量与土壤特性相关。 SPAD与酸性草酸铵，柠檬酸/抗坏血酸和未缓冲的羟胺可萃取铁之间的关系符合线性高原模型，从中可以清楚地确定临界水平（分别为345,425和8 mg kg〜（-1））。被建立。使用基于碱度性质的测试（例如方解石离子活性产物），IPC（？Indice du pouvoir chlorosant？）和DTPA可萃取的Fe测试（通常显示出较差的预测值）是不可能的。rn结论：测试基于能够部分或定量提取最具反应性的土壤铁的试剂，可用于评估葡萄中铁发生绿化的风险。酸性草酸铵，柠檬酸/抗坏血酸铵和无缓冲羟胺是达到此目的的最佳萃取剂。研究的意义和影响：这项研究表明，根据土壤碳酸盐的含量和反应性，测试对预测铁中毒的作用有限。小道消息能够估计不稳定土壤中铁形态含量的测试方法是最好的选择。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号