不同镁肥种类在烤烟上的施用效应研究  

Studies on the Effect of Different Kinds of Magnesium Fertilizer Appled to Flue-cured Tobacco

作　　者：李娟[1] 谢光球 章明清[1] 林琼[1] 陈子冲[1] 彭嘉桂[1] 熊德中[3] 

机构地区：[1]福建省农科院土肥所,福建福州350013 [2]福建省沙县人民政府办公室,福建沙县365500 [3]福建农林大学资源与环境学院,福建福州350002

出　　处：《江西农业大学学报》2005年第3期394-398,共5页Acta Agriculturae Universitatis Jiangxiensis

基　　金：福建省烟草公司资助项目

摘　　要：选用4种常用镁肥品种进行实验室土壤培育试验,并在烤烟上进行镁肥施用效应的盆栽试验。结果表明,不同镁肥施入土壤后,土壤交换性镁含量显著提高。在土壤培育的第50d,各处理的土壤交换性镁含量达到最大值,在土壤培育至第90d降至最小值,各处理的土壤交换性镁含量大小顺序是硫酸镁>MgO>白云石粉>钙镁磷肥。不施镁肥的对照处理的土壤交换性镁含量在整个培育期间都最低。不同镁肥品种对烤烟的生长发育、化学成分、产量有不同的影响。在等量镁的情况下,各处理中以MgO处理的长势最好,烤烟镁含量和吸收量以及叶绿素的含量最高;总生物量和烟叶产量也最高。Four kinds of Mg fertilizer were used to cultivate soil in the lab and were applied to flue-cured tobacco plant in pot culture. The results showed that the soil exchangeable Mg content increased significantly after different kinds of Mg fertilizer were applied. The soil exchangeable Mg contents of all the treatments came up to the highest after the soil was cultured for 50 days and decreased to the lowest after 90 days, the order of which was MgSO 4 > MgO >dolomite> calcium magnesium phosphate.The soil exchangeable Mg content of CK without application of Mg fertilizer was the lowest in the period of culture. Different kinds of Mg fertilizer applied to tobacco had different effect on its growth,chemistry ingredients and yield. At the same level of Mg^(2+), the best treatment for growth was the MgO treatment and its nutrient content, total uptake of Mg and chlorophyll (Chl) content were the highest as well as its total yield. The total yield and leaves yield of CK were the lowest.

关 键 词：镁肥 烤烟 产量 

分 类 号：S572.05[农业科学—烟草工业]