摘要
采用盆栽试验,通过添加粉煤灰和牛粪对煤矸石污染土壤进行改良,并研究了不同改良措施对大豆生长、光合特性和产量的影响。结果表明,添加粉煤灰0.07 kg.kg-1(T1)、添加牛粪0.07 kg.kg-1(T2)、添加粉煤灰和牛粪各0.07 kg.kg-1(T3)3种土壤改良措施对大豆的株高、叶面积和单株根瘤数均有显著影响,不同生育期株高、叶面积和单株根瘤数均表现为T3>T2>T1>CK。在花期和鼓粒期,3种土壤改良措施下大豆的叶绿素含量和光合速率均显著高于对照,且T3处理显著高于T2和T1。与对照相比,不同土壤改良措施对大豆的单株荚数、百粒重、单株粒重和产量均有显著影响,T3、T2和T1处理的大豆产量较对照分别提高68.47%、40.99%和30.63%。
In a pot experiment using coal gangue contaminated soil with fly ash and dairy manure dung,separately or in combination,as soil amendment,soybean was planted to study effects of the amendments on the growth,photosynthesis and yield of the plant.Four treatments were designed： CK（control）,Treatment T1（fly ash）,Treatment T2（dairy manure）,T3（fly ash and dairy manure in combination）.Results show that all 3 treatments improved soybean in plant height,leaf area and number of root nodules,but followed the order of T3T2T1 in effect at all the growth stages,and increased chlorophyll content and photosynthesis rate of the soybean at the flowering and seed-filling stages,more significantly in Treatment T3 than in Treatment T2 and Treatment T1.Besides they also significantly raised pod number per plant,100-grain weight,seed weight per plant and yield.The yield of the plant was increased by 68.47% in Treatment T3,by 40.99% in Treatment T2 and by 30.63% in Treatment T1 over that in control.
出处
《生态与农村环境学报》
CAS
CSSCI
CSCD
北大核心
2011年第5期101-103,共3页
Journal of Ecology and Rural Environment
基金
"十二五"国家科技支撑计划(2011BAD16B15)
国家自然科学基金(41001157)
河南省高校矿山环境保护与生态修复省级重点实验室培育基地开放基金(KF2010-07)
关键词
大豆
煤矸石
粉煤灰
牛粪
土壤改良
soybean
coal gangue
fly ash
dairy manure
soil improvement
