不同机械中耕处理对人工栽培甘草生长特性的影响研究  

Effects of Mechanical Tillage Treatments on the Growth Characteristics of Artificially Cultivated Glycyrrhiza uralensis

作　　者：左忠[1] 张清云[1] 李明[1] 刘华[1] Zuo Zhong;Zhang Qingyun;Li Ming;Liu Hua(Desertifwation Controlling Institute,Ningxia Academy of Agriculture and Forestry Sciences,Yinchuan 75000)

机构地区：[1]宁夏农林科学院荒漠化治理研究所,银川750002

出　　处：《中国农学通报》2018年第25期153-158,共6页Chinese Agricultural Science Bulletin

基　　金：国家中医药管理局项目"第四次全国中药资源普查宁夏试点项目"(NXZYPC-03);国家林业局退耕办;中国林业科学研究院项目"全国退耕还林工程生态效益监测(宁夏)"

摘　　要：为有效改善多年生人工栽培甘草地表生长环境,降低成本投入,提高甘草产量和经济效益,分别以播种机地表耖土、推土机地表耖土、刀具地表耖土等机械中耕为试验处理,以大田无挠动处理为对照,对比分析不同处理对甘草农田土壤水分、紧实度、地表根系呼吸、植株光合能力,以及机械中耕后对甘草株高、产量等主要特征的影响。结果表明,播种机地表耖土和刀具地表耖土均可适度改善甘草农田土壤环境、增加产量,特别是播种机地表耖土处理增产7.43%,应结合早春田间追肥、机械除草等在5月中下旬进行,推土机地表松土作业对田间甘草苗破坏严重,不提倡应用。To effectively improve the perennial artificial cultivation of Glycyrrhiza uralensis farmland surfacegrowth environment, reduce the cost and increase the yield and economic benefits, planter surface tillage,bulldozer cut root tillage and knife surface tillage were studied and compared with no tillage. The effects onmain biological characteristics of soil moisture, compaction, surface root respiration, plant photosyntheticcapacity, and G. uralensis height and yield were investigated. Comprehensive analysis showed that planter soilsurface tillage and knife soil surface tillage were suitable mechanical tillage treatments which could improvesoil environment of G. uralensis, increase production; planter soil surface tillage treatment could increase theyield by 7.43% and should be combined with early spring field fertilizers and mechanical weeding beforemiddle or late May. Bulldozers surface tillage operation could cause serious damage to G. uralensis field, andwas not recommended in application.

关 键 词：人工栽培甘草 机械中耕 生长 

分 类 号：S22[农业科学—农业机械化工程]