环境工程学报2017，Vol.11Issue(9)：5291-5297,7.DOI:10.12030/j.cjee.201609014
生物炭和脱硫石膏对盐碱土壤基本理化性质及玉米生长的影响
Effect of biochar and FGD-gypsum application on soil basic physical and chemical properties and maize growth of saline soil
摘要
Abstract
The effects of the application of different soil conditioners (biochar produced by corn straw and sludge, FGD-gypsum and its compounds) on soil structure were studied by pot experiment with saline soil in Baotou city west, Inner Mongolia autonomous region.The results showed that separate application of biochar can significantly improve the soil nutrient content, although corn can largely absorb soil nutrients with the corn growth, soil nutrient was still higher nutrient content than without any processing of saline soil.Separately applied FGD-gypsum has significant effect on the lowering soil alkalinity and salinity, soil pH is on the decline after application of desulfurization gypsum (0 to 80 d), pH decreased by 0.74 units, and the FGD-gypsum has good desalting, soluble salt content in soil after planting corn was reduced by 22.55％ ,25.60％ ,33.74％ ,44.07％and 45.41％ , respectively.Its compounds can reduce saline soil salinity and increase the content of nutrients in the soil, and has a promoting effect on maize growth and biomass.关键词
盐碱土壤/生物炭/脱硫石膏/基本理化性质/玉米生长Key words
saline soil/biochar/FGD-gypsum/basic physical and chemical properties/maize growth分类
资源环境引用本文复制引用
韩剑宏,李艳伟,张连科,王维大,韩剑锋,余维佳,焦丽燕..生物炭和脱硫石膏对盐碱土壤基本理化性质及玉米生长的影响[J].环境工程学报,2017,11(9):5291-5297,7.基金项目
内蒙古自然科学基金面上项目(2016MS0405,2016MS0221) （2016MS0405,2016MS0221）
