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| 甘肃省秦安县苹果叶缘焦枯死亡原因调查 | |
| 引用本文： | 郭全恩,王益权,郭天文,刘军,南丽丽.甘肃省秦安县苹果叶缘焦枯死亡原因调查[J].北方园艺,2008(8). |
| 作者姓名： | 郭全恩 王益权 郭天文 刘军 南丽丽 |
| 作者单位： | 1. 甘肃省农业科学院,土壤肥料研究所,甘肃,兰州,730070;西北农林科技大学,资环学院,陕西,杨凌,712100 2. 西北农林科技大学,资环学院,陕西,杨凌,712100 3. 甘肃省农业科学院,土壤肥料研究所,甘肃,兰州,730070 4. 甘肃农业大学,草业学院,甘肃,兰州,730070 |
| 摘 要： | 通过对甘肃省秦安县苹果叶缘焦枯死亡的原因初步调查.结果表明:苹果叶缘焦枯是由于土壤中单盐(NaCl)毒害所致,而土壤中盐分的来源是通过微咸水和中度咸水灌溉累积造成的,随年限的增加,危害日趋严重.从土壤的分析结果看,项目区果园土壤盐分组成类型为:0～20cm和40～60cm土层为氯化物-苏打-硫酸盐型;20～40cm土层为苏打-氯化物-硫酸盐型.pH＜8.5,土壤表层盐分的含量均小于0.20%,ESP值小于10,HCO3-/(Cl- SO42-)＜0.5,与生长良好的果园区土壤相比有轻微的盐化和碱化现象. |
| 关 键 词： | 苹果 叶缘焦枯 死亡原因 秦安县 |
Investigation Report on the Death Reason of Apple Leaf Marginal Withered in Qinan County of China |
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| GUO Quan-en,WANG Yi-quan,GUO Tian-wen,LIU Jun,NAN Li-li.Investigation Report on the Death Reason of Apple Leaf Marginal Withered in Qinan County of China[J].Northern Horticulture,2008(8). | |
| Authors: | GUO Quan-en WANG Yi-quan GUO Tian-wen LIU Jun NAN Li-li |
| Abstract: | This study investigated the effects of different factors on the death reason of apple leaf marginal withered.The results showed apple leaf marginal withered was caused by single salt poison in soil.And that the origin of soil salt was irrigated by tiny salt water or middle degree salt water again and again.Along with irrigated number of year increasing,single salt poison tend towards more severity.From soil analysis we could seen that orchard soil salt composing types of the experiment area was Chloride-Soda-Sulfate in the 0~20 and 40~60 cm soil layer depth,the 20~40 cm soil layer was Soda-Chloride-Sulfate.Soil pH was less 8.5,and all soil surface layer salt contents less 0.20%,ESP was less 10,HCO3-/(Cl- SO42-) was less 0.5.There were a little salt and basification phenomena with soil of growth better orchards compare. |
| Keywords: | Apple Leaf marginal withered Death reason Qinan county |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |