title: [Effects of strong reductive approach on remediation of degraded facility vegetable soil].
abstract: High application rate of chemical fertilizers and unreasonable rotation in facility vegetable cultivation can easily induce the occurrence of soil acidification, salinization, and serious soil-borne diseases, while to quickly and effectively remediate the degraded facility vegetable soil can considerably increase vegetable yield and farmers' income. In this paper, a degraded facility vegetable soil was amended with 0, 3.75, 7.50, and 11.3 t C x hm(-2) of air-dried alfalfa and flooded for 31 days to establish a strong reductive environment, with the variations of soil physical and chemical properties and the cucumber yield studied. Under the reductive condition, soil Eh dropped quickly below 0 mV, accumulated soil NO3(-) was effectively eliminated, soil pH was significantly raised, and soil EC was lowered, being more evident in higher alfalfa input treatments. After treated with the strong reductive approach, the cucumber yield in the facility vegetable field reached 53.3-57.9 t x hm(-2), being significantly higher than that in un-treated facility vegetable field in last growth season (10.8 t x hm(-2)). It was suggested that strong reductive approach could effectively remediate the degraded facility vegetable soil in a short term.
authors.affiliation: College of Geography Science, Nanjing Normal University, Nanjing 210046, China. zhutongbin@gmail.com
authors.forename: Tong-Bin
authors.initials: TB
authors.lastname: Zhu
authors.affiliation: College of Geography Science, Nanjing Normal University, Nanjing 210046, China.
authors.forename: Tian-Zhu
authors.initials: TZ
authors.lastname: Meng
authors.affiliation: College of Geography Science, Nanjing Normal University, Nanjing 210046, China.
authors.forename: Jin-Bo
authors.initials: JB
authors.lastname: Zhang
authors.affiliation: College of Geography Science, Nanjing Normal University, Nanjing 210046, China.
authors.forename: Zu-Cong
authors.initials: ZC
authors.lastname: Cai
mesh_terms: D000383:Agriculture / Q000379:methods; D002681:China; D003247:Conservation of Natural Resources / Q000379:methods*; D017753:Ecosystem; D052918:Environmental Restoration and Remediation / Q000379:methods*; D012987:Soil / Q000737:chemistry*; D012989:Soil Pollutants / Q000032:analysis; D014675:Vegetables / Q000254:growth & development*
chemical_list: D012987:Soil; D012989:Soil Pollutants