| 刘奇,王晟,赵炫越,陈文,包立,张乃明.不同叶面阻控剂对玉米Cd、Pb积累与转运差异研究[J].农业环境科学学报,2023,42(6):1247-1256. |
| 不同叶面阻控剂对玉米Cd、Pb积累与转运差异研究 |
| Differences in foliar inhibitor effects on Cd and Pb accumulation and transport in corn |
| 投稿时间：2022-12-21 修订日期：2023-02-08 |
| DOI：10.11654/jaes.2022-1291 |
| 中文关键词: 叶面阻控剂 玉米 Cd Pb 积累 转运 |
| 英文关键词: foliar inhibitor corn Cd Pb accumulation translocation |
| 基金项目:国家自然科学基金联合基金项目（U2002210）；云南省重大科技专项（202002AE32005） |
| 作者 | 单位 | E-mail | | 刘奇 | 云南农业大学资源与环境学院, 昆明 650201
云南省土壤培肥与污染修复工程研究中心, 昆明 650201 | | | 王晟 | 云南省土壤培肥与污染修复工程研究中心, 昆明 650201
云南农业大学植物保护学院, 昆明 650201 | | | 赵炫越 | 云南农业大学资源与环境学院, 昆明 650201
云南省土壤培肥与污染修复工程研究中心, 昆明 650201 | | | 陈文 | 云南农业大学资源与环境学院, 昆明 650201
云南省土壤培肥与污染修复工程研究中心, 昆明 650201 | | | 包立 | 云南农业大学资源与环境学院, 昆明 650201
云南省土壤培肥与污染修复工程研究中心, 昆明 650201 | | | 张乃明 | 云南农业大学资源与环境学院, 昆明 650201
云南省土壤培肥与污染修复工程研究中心, 昆明 650201 | zhangnaiming@sina.com |
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| 中文摘要: |
| 为探究不同类型叶面阻控剂对玉米吸收Cd、Pb的阻控效果，实现重金属污染耕地农作物的安全生产，以“华兴单88”为供试玉米，采用田间试验方法，设置8个处理：对照（CK）、YZ-1、YZ-2、YZ-3、YZ-4、降镉灵（JGL）、喷喷富（PPF）和万物生（WWS），研究不同处理玉米生物性状和各部位Cd、Pb富集及转运系数的差异性。结果表明： 7种叶面阻控剂处理下，产量相较CK提高了4.8%~30.4%，增产能力表现为WWSWWS>PPF>YZ-4>YZ-3>JGL>YZ-2>YZ-1；供试玉米各部位Cd、Pb转运系数均表现为根部-茎部<茎部-棒芯<棒芯-籽粒<茎部-叶部。通过田间试验证明，供试的7种叶面阻控剂对玉米籽粒的Cd、Pb阻控效果表现为YZ-1>YZ-2>JGL>YZ-3>YZ-4>PPF>WWS。本试验条件下，YZ-3作为增产效果最好的叶面阻控剂，建议在Cd轻中度污染的玉米产区推广使用； YZ-1作为Cd、Pb阻控效果最好且成本最低的叶面阻控剂，建议在Cd重度污染的玉米主产区推广使用。 |
| 英文摘要: |
| This study aimed to investigate the effects of different types of foliar inhibitors on Cd and Pb uptake in corn and to achieve safe production of crops in heavy metal-contaminated land. Eight treatments were set up in a field experiment, with "Huaxing dan 88" cultivated variety as the test corn： control（CK）, YZ-1, YZ-2, YZ-3, YZ-4, cadmium reduction spirit（JGL）, PPF and WWS, to investigate the differences in biological traits, as well as Cd and Pb enrichment and transport coefficients in different parts of corn. The results showed that the yield increased by 4.8%-30.4% under the seven types of foliar inhibitors, compared with CK, showing the following trend： WWS < PPF < JGL < YZ-1 < YZ-2 < YZ-4 < YZ-3. The Cd and Pb contents and enrichment coefficients of each part of the test corn were seed < cob < stalk < leaf < root. The Cd and Pb contents and enrichment coefficients of corn seeds were lower than those of CK. Compared with CK, the Cd and Pb contents in corn seeds decreased by 13.9%-69.4% and 16.7%-55.6%, respectively, and the enrichment coefficients of Cd and Pb decreased by 14.5%-70.8% and 11.5%-49.8%, respectively, under the treatment of 7 foliar inhibitors, following the trend of CK > WWS > PPF > YZ-4 > YZ-3 > JGL > YZ-2 > YZ-1. The transport coefficients of each part of the test corn ranked as root-stalk < stalk-cob < cob-seed < stalk-leaf. The field tests ranked the Cd and Pb control effects of the seven tested foliar inhibitors as YZ-1 > YZ- 2 > JGL > YZ-3 > YZ-4 > PPF > WWS. Under the conditions of this test, YZ-3 is the best foliar inhibitor for yield increase, and its use is recommended in corn production areas with light to moderate Cd pollution. YZ-1 is the best foliar inhibitor for Cd and Pb control, and it also has the lowest cost. YZ-1, as the best and cheapest foliar inhibitor for Cd and Pb control, is recommended for use in the main corn producing areas with heavy Cd pollution. |
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