不同土壤紧实度对甘蔗品种福农39号苗期生长的影响  

Influence of soil density on seedling growth of sugarcane variety Funong 39

作　　者：吴晓莲[1] 林兆里[1] 张华[1] 

机构地区：[1]福建农林大学国家甘蔗产业技术研发中心,福建福州350002

出　　处：《广东农业科学》2014年第19期43-46,共4页Guangdong Agricultural Sciences

基　　金：国家公益性行业(农业)科研专项(201003009-2);国家现代农业产业技术体系建设专项(CARS-20)

摘　　要：为了研究不同土壤紧实度对甘蔗品种福农39号苗期生长的影响,选择健康、整齐度均匀的甘蔗种茎为材料,采用盆栽试验观测了3种土壤紧实度(1.1、1.2、1.3 g/mL)下福农39号的萌芽势及幼苗期、蔗苗生长前期、中期和后期生长情况。结果表明,福农39号在3种土壤紧实度下的萌芽势差异均不显著,反映了该品种对本试验土壤紧实度处理具有较广的适应性,但疏松土质对于尽早形成基本苗群体有促进作用;土壤紧实度对甘蔗三叶龄幼苗生长有显著影响,蔗苗生长进入中期后,不同土壤紧实度处理间的差异不显著,但紧实的土壤对于蔗苗生长后期的群体整齐度有所影响。本试验结果可为蔗地机械化深松及新植技术提供依据,并为甘蔗中耕、培土等田间管理技术的实施提供参考,构建甘蔗高产的良好耕层条件。In order to study the influence of different soil density on seedling growth of sugarcane variety Funong 39,we observed the germination and growth performance at early seedling stage, medium seedling stage, later seedling stage under three soil densities（1.1g/mL, 1.2g/mL, 1.3g/mL） from potted planting. The results showed that, there was no significant difference with the germination rate among different soil densities, which reflected that this variety had a wider adaptability to the test soil density, but the looser soil was expected helpful to establish the basic seedling population. The influence of soil density was significant on three leaf age seedling, by far, this effect weakened away after entering the medium seedling stage, but the denser soil decreased the growth uniformity on sugarcane later seedling stage. The results can provide technical requirements to sugarcane field subsoiling and planting, and then provide references for subsequent cultivation to make a good topsoil condition for high yield determination.

关 键 词：土壤紧实度 甘蔗 苗期生长 

分 类 号：S566.1[农业科学—作物学]