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浙江大学学报(农业与生命科学版)  2021, Vol. 47 Issue (6): 768-776    DOI: 10.3785/j.issn.1008-9209.2021.02.151
资源利用与环境保护     
叶面调理剂对浙江东部镉污染农田水稻主栽品种安全生产的影响
周其耀1(),倪元君2(),徐顺安1,王琼1,詹丽钏2,冯英1()
1.浙江大学环境与资源学院,污染环境修复与生态健康教育部重点实验室,杭州 310058
2.嵊州市农业技术推广中心,浙江 绍兴 310024
Effects of foliar conditioners on safety production of main rice varieties in cadmium-contaminated farmland in eastern Zhejiang Province
Qiyao ZHOU1(),Yuanjun NI2(),Shun’an XU1,Qiong WANG1,Lichuan ZHAN2,Ying FENG1()
1.Ministry of Education Key Laboratory of Environmental Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
2.Shengzhou Agricultural Technology Extension Center, Shaoxing 310024, Zhejiang, China
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摘要:

为降低作物可食部的重金属含量,实现中轻度污染农田安全利用,通过连续2年的田间试验,比较了不同离子拮抗型叶面调理剂的作用效应及优选的调理剂对水稻安全生产的影响。田间小区试验结果表明,供试的5种叶面调理剂在2个试验点均有明显的降镉(Cd)增产作用,其中以喷施多元复合叶面调理剂降低稻米Cd含量的效果最佳,2个试验点糙米Cd含量分别降低13.0%和14.5%。进一步通过田间大区试验比较叶面喷施该多元复合调理剂对浙江东部7个主栽水稻品种产量和稻米Cd含量的影响发现,喷施该叶面调理剂可增产8.2%~10.8%,糙米Cd含量下降15.7%~20.3%,其中以YY17配施叶面调理剂处理的糙米Cd含量最低。这些结果说明,低积累品种配施多元复合调理剂可以有效降低糙米Cd含量,在实现Cd轻度污染农田安全利用的同时促进水稻生产的增产增效。

关键词: 重金属叶面肥田间试验产量离子拮抗    
Abstract:

Application of foliar conditioner is an important technical measure to reduce the contents of heavy metals in edible parts of crops and realize the safe utilization of moderately and slightly polluted farmlands. In this study, the effects of different ion antagonistic foliar conditioners and the optimal conditioner on the safety of rice production were compared through two consecutive years of field experiments. The field plot experiment results showed that five kinds of foliar conditioners had obvious effects on reducing cadmium (Cd) content and increasing yield in the two sites, among which spraying multiple compound foliar conditioner had the best effect on reducing Cd content in rice, and Cd contents in the brown rice in two sites decreased by 13.0% and 14.5%, respectively. Furthermore, the effects of foliar application of the multiple compound conditioner on rice yields and Cd contents of seven main rice varieties in eastern Zhejiang Province were compared through regional experiments. The results showed that the foliar application of multiple compound conditioner could increase rice yield by 8.2%-10.8% and decrease Cd content of the brown rice by 15.7%-20.3%. Among them, YY17 combined with the foliar application of multiple compound conditioner had the lowest Cd content in the brown rice. These results indicate that the combination of low accumulation varieties and the selected multiple compound conditioner could effectively reduce the Cd content in brown rice, achieve the safe utilization of farmland with slight Cd pollution, and promote the yield and efficiency of rice production.

Key words: heavy metal    foliar fertilizer    field experiment    yield    ion antagonism
收稿日期: 2021-02-15 出版日期: 2021-12-25
CLC:  X 53  
基金资助: 浙江省重点研发计划国际合作项目(2021C04020)
通讯作者: 倪元君,冯英     E-mail: 17863807350@163.com;391733495@qq.com;yfeng@zju.edu.cn
作者简介: 周其耀(https://orcid.org/0000-0002-8784-9343),E-mail:17863807350@163.com
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引用本文:

周其耀,倪元君,徐顺安,王琼,詹丽钏,冯英. 叶面调理剂对浙江东部镉污染农田水稻主栽品种安全生产的影响[J]. 浙江大学学报(农业与生命科学版), 2021, 47(6): 768-776.

Qiyao ZHOU,Yuanjun NI,Shun’an XU,Qiong WANG,Lichuan ZHAN,Ying FENG. Effects of foliar conditioners on safety production of main rice varieties in cadmium-contaminated farmland in eastern Zhejiang Province. Journal of Zhejiang University (Agriculture and Life Sciences), 2021, 47(6): 768-776.

链接本文:

http://www.zjujournals.com/agr/CN/10.3785/j.issn.1008-9209.2021.02.151        http://www.zjujournals.com/agr/CN/Y2021/V47/I6/768

试验点

Site

pH

有机质

Organic matter/

(g/kg)

全氮

Total N/

(g/kg)

速效钾

Available K/

(mg/kg)

有效磷

Available P/

(mg/kg)

Cd/

(mg/kg)

Cr/

(mg/kg)

Pb/

(mg/kg)

As/

(mg/kg)

Hg/

(mg/kg)

A4.7441.132.2576.906.580.36±0.2270.40±15.4740.58±6.172.86±0.920.38±0.18
B4.5532.342.1241.203.320.32±0.0558.53±26.4732.71±18.361.92±1.050.25±0.23
表1  试验点耕层土壤基本理化性质和重金属含量

编号

Number

品种名称

Variety name

种类

Type

生育期

Growth stage/d

YY1540甬优1540籼粳杂交稻118.9
YY538甬优538籼粳杂交稻153.5
YY9甬优9号粳型三系杂交水稻152.7
YY15甬优15号籼粳杂交中稻151.2
YY17甬优17号籼粳杂交晚稻153.2
XS519秀水519特早熟晚粳常规稻123.3
N84宁84单季晚粳稻156.8
表2  水稻品种

编号

Number

名称

Name

制备方法

Preparation method

施用量

Application amount

1CK清水5 L/小区(40 m2
2硫酸锌调理剂硫酸锌7.5 g,稀释至5 L5 L/小区(40 m2
3强化锌调理剂硫酸锌7.5 g+有机硅表面活性剂0.4 mL,稀释至5 L5 L/小区(40 m2
4纳米硅肥调理剂纳米硅肥(成品)15 g,稀释至10 L10 L/小区(40 m2
5强化硅锌调理剂硅酸钠4 g+硫酸锌5 g+有机硅表面活性剂0.8 mL,稀释至5 L5 L/小区(40 m2
6多元复合调理剂硼砂5 g+硫酸锌5 g+硫酸亚铁5 g+有机硅表面活性剂0.4 mL,稀释至5 L5 L/小区(40 m2
表3  供试叶面调理剂的制备与处理

试验点

Site

处理

Treatment

单株生物量

Biomass per plant/g

单株穗质量

Panicle mass per plant/g

产量

Yield/(kg/667 m2)

ACK202.93±32.88b21.97±3.51b177.7±14.3b
硫酸锌调理剂213.07±21.04ab22.41±6.21a181.6±7.4ab
强化锌调理剂221.75±30.22ab23.97±5.53a183.3±10.7ab
纳米硅肥调理剂236.21±31.17a26.06±6.23a192.4±11.7a
强化硅锌调理剂227.45±26.89ab22.51±5.76a185.8±9.9ab
多元复合调理剂224.44±31.35ab22.99±1.17ab189.0±2.0a
BCK312.13±65.21b52.72±8.43b613.4±11.7b
硫酸锌调理剂343.28±94.23ab56.83±10.07ab652.0±12.2ab
强化锌调理剂331.28±55.87ab54.07±6.34ab624.6±18.6b
纳米硅肥调理剂381.52±48.89a61.35±10.91a676.2±9.1a
强化硅锌调理剂368.55±105.33a66.01±9.33a631.0±13.9ab
多元复合调理剂375.31±43.41a64.67±10.13a661.0±15.2a
表4  不同叶面调理剂处理下水稻产量性状

试验点

Site

处理

Treatment

糙米

Brown rice

谷壳

Rice husk

穗轴

Rachis

秸秆

Straw

ACK0.077±0.013a0.129±0.012a0.152±0.002ab0.184±0.019a
硫酸锌调理剂0.071±0.014a0.125±0.011a0.161±0.007a0.173±0.014ab
强化锌调理剂0.073±0.012a0.119±0.009ab0.149±0.003ab0.158±0.009b
纳米硅肥调理剂0.074±0.014a0.114±0.004b0.141±0.003ab0.187±0.014a
强化硅锌调理剂0.070±0.012a0.121±0.007a0.145±0.010ab0.157±0.007b
多元复合调理剂0.067±0.011a0.117±0.006ab0.143±0.005ab0.151±0.009b
BCK0.076±0.014a0.129±0.018a0.136±0.012a0.172±0.013a
硫酸锌调理剂0.070±0.015ab0.125±0.013a0.131±0.017a0.162±0.013ab
强化锌调理剂0.071±0.012a0.121±0.014a0.132±0.013a0.158±0.007b
纳米硅肥调理剂0.072±0.014a0.105±0.011b0.120±0.013b0.166±0.013a
强化硅锌调理剂0.068±0.013ab0.118±0.009ab0.118±0.010b0.162±0.006ab
多元复合调理剂0.065±0.013b0.114±0.012ab0.125±0.005ab0.155±0.005b
表5  不同叶面调理剂处理下水稻不同部位Cd含量 (mg/kg)
图1  叶面调理剂对不同水稻品种单株生物量(A)和产量(B)的影响短栅上不同小写字母表示不同处理间在P<0.05水平差异有统计学意义。
图2  叶面调理剂对不同水稻品种糙米(A)、谷壳(B)、穗轴(C)和秸秆(D)Cd含量的影响短栅上不同小写字母表示不同处理间在P<0.05水平差异有统计学意义。
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