灭菌土壤玉米-花生混作对花生铁营养的影响研究  

Effects of mixed cropping of maize and peanut on the Fe nutrition of peanut in sterilized soil

作　　者：房增国[1] 左元梅[1] 李隆[1] 张福锁[1] 

机构地区：[1]中国农业大学植物营养系农业部植物营养学重点实验室,北京100094

出　　处：《中国生态农业学报》2004年第4期98-101,共4页Chinese Journal of Eco-Agriculture

基　　金：国家自然科学基金项目 ( 3 0 170 185 )资助

摘　　要：盆栽试验研究灭菌土壤玉米 花生混作对花生植株Fe营养与根际土壤有效铁的影响结果表明 ,玉米 花生混作可显著提高花生新叶叶绿素及活性铁含量 ,下针初期可增加花生地上部全Fe含量和根际土壤活性铁含量 ,混作在改善花生Fe营养过程中始终起主导作用 ;Effects of mixed cropping of maize and peanut on the Fe nutrition of peanut plant and the available Fe content in the rhizophere of peanut were studied by pot experiment in sterilized soil. The results indicate that mixed cropping of maize and peanut can significantly improve the chlorophyll and active Fe contents in the young leaves of peanut, and the total Fe content of peanut shoots and the active Fe content in the rhizophere of peanut are also enhanced at the R_2 stage. Mixed cropping plays an important role in the improvement of the Fe nutrition of peanut. Soil sterilization can only improve the Fe nutrition of peanut at earlier growing stage.

关 键 词：花生地 混作 玉米 根际土壤 铁营养 灭菌 盆栽试验 生铁 增加 改善 

分 类 号：S565.2[农业科学—作物学] S513