title: Effects of Different Forms of Selenium Fertilizers on Se Accumulation, Distribution, and Residual Effect in Winter Wheat-Summer Maize Rotation System.
abstract: Foliar Se fertilizers were applied to investigate the effects of Se forms on Se accumulation and distribution in the wheat-maize rotation system and residual concentration of Se in subsequent crops. Sodium selenite, sodium selenate, selenomethionine, chemical nano-Se, humic acid + sodium selenite, and compound fertilizer + sodium selenite were applied once at the flowering stage of wheat (30 g ha-1) and at the bell stage of maize (60 g ha-1). Compared with the control treatment, foliar Se applications significant increased the grain Se concentration of wheat and maize by 0.02-0.31 and 0.07-1.09 mg kg-1, respectively. Wheat and maize grain Se recoveries were 3.0-10.4 and 4.1-18.5%, respectively. However, Se concentrations in the grain of subsequent wheat and maize significantly decreased by 77.9 and 91.2%, respectively. The change of Se concentration in soil was a dynamic process with Se depletion after harvest of maize.
authors.affiliation: Key Laboratory of Plant-Soil Interactions of the Ministry of Education, College of Resources and Environmental Sciences, China Agricultural University , Beijing 100193, China.
authors.forename: Qi
authors.initials: Q
authors.lastname: Wang
authors.affiliation: Key Laboratory of Plant-Soil Interactions of the Ministry of Education, College of Resources and Environmental Sciences, China Agricultural University , Beijing 100193, China.
authors.forename: Yao
authors.initials: Y
authors.lastname: Yu
authors.affiliation: Key Laboratory of Plant-Soil Interactions of the Ministry of Education, College of Resources and Environmental Sciences, China Agricultural University , Beijing 100193, China.
authors.forename: Jixiang
authors.initials: J
authors.lastname: Li
authors.affiliation: Key Laboratory of Plant-Soil Interactions of the Ministry of Education, College of Resources and Environmental Sciences, China Agricultural University , Beijing 100193, China.
authors.forename: Yanan
authors.initials: Y
authors.lastname: Wan
authors.affiliation: Key Laboratory of Plant-Soil Interactions of the Ministry of Education, College of Resources and Environmental Sciences, China Agricultural University , Beijing 100193, China.|Key Laboratory of Agro-environment and Agro-product Safety, Agro-Environmental Protection Institute, Ministry of Agriculture , Tianjin 300191, China.
authors.forename: Qingqing
authors.initials: Q
authors.lastname: Huang
authors.affiliation: Key Laboratory of Plant-Soil Interactions of the Ministry of Education, College of Resources and Environmental Sciences, China Agricultural University , Beijing 100193, China.
authors.forename: Yanbin
authors.initials: Y
authors.lastname: Guo
authors.affiliation: Key Laboratory of Plant-Soil Interactions of the Ministry of Education, College of Resources and Environmental Sciences, China Agricultural University , Beijing 100193, China.
authors.forename: Huafen
authors.identifier: http://orcid.org/0000-0002-4549-1937
authors.initials: H
authors.lastname: Li
mesh_terms: D000383:Agriculture / Q000379:methods*; D002681:China; D005308:Fertilizers; D018515:Plant Leaves / Q000187:drug effects; D012621:Seasons; D012643:Selenium / Q000378:metabolism / Q000493:pharmacokinetics*; D012645:Selenomethionine / Q000378:metabolism / Q000493:pharmacokinetics; D018038:Sodium Selenite / Q000378:metabolism / Q000493:pharmacokinetics; D012987:Soil / Q000737:chemistry; D014018:Tissue Distribution; D014908:Triticum / Q000737:chemistry* / Q000187:drug effects / Q000254:growth & development; D003313:Zea mays / Q000737:chemistry* / Q000187:drug effects / Q000254:growth & development
chemical_list: D005308:Fertilizers; D012987:Soil; D012645:Selenomethionine; D012643:Selenium; D018038:Sodium Selenite
keywords: biofortification; maize; residual effect; selenium fertilizers; wheat