期刊论文

Effect of foliar spraying different forms of sulfur on cadmium accumulation in rice

中文

农业环境科学学报

1672-2043

2021

40

07

1387-1401

10.11654/jaes.2021-0216

国家重点研发计划项目（2017YFD0801505）； 湖南省高新技术产业科技创新引领计划（科技攻关类）项目（2020NK200101）~~；

本校为第一机构

为研究叶面喷施不同形态硫对水稻镉的阻控效果,以“湘早籼45号”为材料,采用盆栽试验及田间试验的方法,设计两种不同喷施次数(分蘖盛期喷施一次,分蘖盛期与孕穗期共喷施两次),3种不同形态硫元素(-SH形态的半胱氨酸、SO_(4)^(2-)形态的硫酸钾及S^(2-)形态的硫化钾)的叶面喷施试验。盆栽试验以叶面硅肥、硝酸钾(KNO_(3))及自来水为对照,田间试验以自来水为对照。结果表明:3种形态的硫及硅较自来水对照对糙米降镉效果显著,降镉能力为半胱氨酸(Cys)>硫化钾(K_(2)S)>硅(Si)>硫酸钾(K_(2)SO_(4)),其盆栽试验喷施两次叶面肥的糙米镉含量分别降低53.57%、46.43%、39.29%和28.57%,KNO_(3)对水稻无降镉效果...

The effect of foliar spraying different forms of sulfur(S)on reducing the cadmium(Cd)uptake of the brown rice "Xiangzaoxian 45" were carried out through pot and field experiments. Three forms of sulfur [cysteine(Cys)in -SH form, potassium sulfate(K_2SO_4)in SO_4~(2-) form, and potassium sulfide(K_2S)in S~(2-) form] were sprayed on the surface of leaves of "Xiangzaoxian 45"(once at the tillering stage, and twice at tillering stage and booting stage). In the pot experiment, silicon(Si)fertilizer, potassium nitrate(KNO_3), and tap water were used ...