土壤施硒量对杂交狼尾草生长和硒积累的影响

doi:10.11733/j.issn.1007-0435.2024.03.020

草地学报 ›› 2024, Vol. 32 ›› Issue (3): 838-847.DOI: 10.11733/j.issn.1007-0435.2024.03.020

土壤施硒量对杂交狼尾草生长和硒积累的影响

陈钟佃¹, 邱水玲², 冯德庆¹, 黄秀声¹, 黄小云¹, 周柳婷¹

1. 福建省农业科学院资源环境与土壤肥料研究所/福建省丘陵地区循环农业工程技术研究中心, 福建福州 350013;
2. 福建农林大学动物科学学院(蜂学学院), 福建福州 350002

收稿日期:2023-09-11 修回日期:2023-10-19 出版日期:2024-03-15 发布日期:2024-04-03
通讯作者: 冯德庆,E-mail:koala-1011@163.com;黄秀声,E-mail:hxs706@163.com
作者简介:#陈钟佃(1974-)，男，汉族，福建罗源人，硕士，副研究员，主要从事生态农业研究，E-mail:czd510024@163.com;邱水玲(1997-)，女，汉族，福建龙岩人，硕士，主要从事动物营养与饲料资源开发，E-mail:shuiling.qiu@aliyun.com
基金资助:
福建省属公益类科研院所专项(2021R1021006、2022R1021005、2022R1021002)；福建省人民政府-中国农业科学院“5511”协同创新工程(XTCXGC2021010、XTCXGC2021019)；福建省农业科学院项目(YDXM202205、ZYTS2023015、CXTD2021009-1)资助

Effects of Selenium Application on the Production and Selenium Accumulation of Hybrid Pennisetum

CHEN Zhong-dian¹, QIU Shui-ling², FENG De-qing¹, HUANG Xiu-sheng¹, HUANG Xiao-yun¹, ZHOU Liu-ting¹

1. Institute of Resources, Environment and Soil Fertilizer, Fujian Academy of Agricultural Sciences/Fujian Province Engineering and Technology Research Center for RecyclingAgriculture in Hilly, Fuzhou, Fujian Province 350013, China;
2. College of Animal sciences(College of Bee Science) of Fujian Agriculture and Forestry University, Fuzhou, Fujian Province 350002, China

Received:2023-09-11 Revised:2023-10-19 Online:2024-03-15 Published:2024-04-03

摘要/Abstract

摘要： 为探讨杂交狼尾草(P.americanum×P.purpureum)产能对富硒强化措施的响应,本研究采用盆栽试验,研究不同土壤施硒量(0,0.50,1.00,2.00,5.00,10.00,20.00,30.00,40.00和50.00 mg·kg^-1)处理对杂交狼尾草幼苗成活率、产能和硒积累的影响。结果显示,土壤施硒量1.00 mg·kg^-1对杂交狼尾草的生长有促进作用;20.00 mg·kg^-1显著抑制幼苗的成活率和分蘖期的生长,对拔节期和成熟期植株影响不显著;40.00 mg·kg^-1抑制拔节期的生长。土壤施硒量 ≤ 5.00 mg·kg^-1时,杂交狼尾草地上部和根系对硒有较强的富集能力,富集能力强于紫云英、黑麦草和紫花苜蓿等;通过杂交狼尾草的生物转化,大量无机硒可转化为有机硒,而在 ≤ 5.00 mg·kg^-1施硒量下有机硒转化率最高,为56.19%~73.91%。研究表明,杂交狼尾草是一种富硒能力强的饲草,在土壤施硒量 ≤ 5.00 mg·kg^-1(土壤硒本底值为0.07 mg·kg^-1)时对硒的富集效果最佳,有机硒转化率高,具备作为高硒、高值化饲料添加剂材料的开发潜力。

关键词: 硒, 杂交狼尾草, 生产, 积累

Abstract: In order to investigate the response of hybrid Pennisetum to selenium fertilizer,a pot experiment was carried out to study the effect of different amount of selenium applied to soil (0,0.50,1.00,2.00,5.00,10.00,20.00,30.00,40.00,and 50.00 mg·kg^-1) on the survival rate,production and selenium accumulation of hybrid Pennisetum. According to the results,the selenium applied to soil at 1.00 mg·kg^-1 promoted the growth of hybrid Pennisetum. The selenium applied at 20.00 mg·kg^-1 significantly inhibited the survival rate of seedlings and its plant growth during the tillering stage of hybrid Pennisetum,but had less significant effect on plants during the elongation and maturity stages. The selenium applied at 40.00 mg·kg^-1 inhibited the growth of hybrid Pennisetum during the elongation stage. When the amount of selenium applied to soil was ≤ 5.00 mg·kg^-1,hybrid Pennisetum had a strong capability to accumulate selenium in both above ground and underground parts,and this ability was stronger than that of other forages,such as Astreagalus sinibcus,ryegrass,and alfalfa. By using the biological conversion with hybrid Pennisetum,a large amount of inorganic selenium could be converted into organic selenium. The highest organic selenium conversion rate was 56.19%~73.91% when the selenium was ≤ 5.00 mg·kg^-1 The research illustrated that,hybrid Pennisetum has a strong ability to accumulate selenium,under the prerequisite of the background value of soil Se was 0.07 mg·kg^-1,the best Se-enrichment effect and a high organic selenium conversion rate were observed when the amount of selenium applied to soil was ≤ 5.00 mg·kg^-1,making it a potential material for developing high-selenium and high-value feed additives.

Key words: Selenium, Hybrid Pennisetum, Production, Accumulation

中图分类号:

S543

陈钟佃, 邱水玲, 冯德庆, 黄秀声, 黄小云, 周柳婷. 土壤施硒量对杂交狼尾草生长和硒积累的影响[J]. 草地学报, 2024, 32(3): 838-847.

CHEN Zhong-dian, QIU Shui-ling, FENG De-qing, HUANG Xiu-sheng, HUANG Xiao-yun, ZHOU Liu-ting. Effects of Selenium Application on the Production and Selenium Accumulation of Hybrid Pennisetum[J]. Acta Agrestia Sinica, 2024, 32(3): 838-847.

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土壤施硒量对杂交狼尾草生长和硒积累的影响

Effects of Selenium Application on the Production and Selenium Accumulation of Hybrid Pennisetum

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