【摘要】 通过盆栽试验研究了锰尾矿中锰对小麦产量构成、叶绿素产量和锰素营养的影响。结果表明:施锰改善了小麦的株高、穗长、穗粒数、百粒重等产量构成因素,其中锰矸石与锰渣混合处理(处理E)的穗粒数最高,达34.17粒,百粒重达4.15 g;小麦拔节期、孕穗期的叶绿素总含量分别提高了10.6%~13.7%和18.1%~26.8%,籽粒和茎叶的锰含量分别提高了37.5%~55.8%和12.6%~25.7%。盆栽试验后,土壤残余锰低于种植前。为综合利用锰尾矿,以锰矸石与电解锰渣混合的形式作为锰肥效果更好。更多还原

【Abstract】 The pot experiment was conducted to study the effects of Mn in manganese carbonate tailings on yield component,chlorophyll content and Mn nutrition of wheat.The results showed that applying Mn could improve the yield components of plant height,ear length,grains per ear and 100-grain weight,the No.of grains per ear and 100-grain weight of the treatment applied with Mn gangue and Mn residue reached 34.17 and 4.15 g respectively,the chlorophyll content in stem and leaves of wheat applied with Mn at jointing and booting stage increased by 10.6%～13.7% and 18.1%～26.8% respectively compared with CK,and the Mn content in grains,stem and leaves of wheat applied with Mn increased by 37.5%～55.8% and 12.6%～25.7% respectively compared with CK.The residue Mn content in soil was lower than that before planting wheat.The mixture of manganese gangue and manganese residue was the best form for comprehensively utilizing manganese tailings.更多还原