耕作深度对红壤坡耕地花生根系生长及活力的影响  

Effects of Tillage Depth on Root Growth and Activity of Peanut in Red Soil Slope Field

作　　者：黄尚书[1] 武琳[1] 叶川[1] 黄欠如[1] 成艳红[1] 张昆[1] 吴昌强[1] 周琦娜 杨小华 钟义军[1] HUANG Shang-shu;WU Lin;YE Chuan;HUANG Qian-ru;CHENG Yan-hong;ZHNAG Kun;WU Chang-qiang;ZHOU Qi-na;YANG Xiao-hua;ZHONG Yi-jun(Red Soil Institute of Jiangxi Province,Jinxian 331717,China;Agricultural Bureau of Jinxian County in Jiangxi Province,Jinxian 331717,China)

机构地区：[1]江西省红壤研究所,江西进贤331717 [2]江西省进贤县农业局,江西进贤331717

出　　处：《江西农业学报》2018年第12期9-12,共4页Acta Agriculturae Jiangxi

基　　金：江西省重点研发计划项目(20161BBF60105);江西省发明专利产业化项目(20161BBM26042);公益性行业(农业)科研专项经费项目(201503119)

摘　　要：依托2015年设置的红壤坡耕地耕作深度试验,选取免耕(NT)和梯度耕作深度处理(P10:翻耕10 cm; P20:翻耕20 cm; P30:翻耕30 cm),研究了耕作深度对花生根长及根系活力的影响。结果表明:(1)耕作处理在促进根系生长方面明显优于NT处理,尤其以P20、P30处理的效果更佳,但根系增长潜力以NT处理最大;(2)与NT处理相比,P10、P20处理有利于提高花生各生育期的根系活力,缓解花生根系衰老效果以P20处理最佳;(3)不同耕作深度通过影响花生根系生长及其关键生育期根系活力,进而影响花生产量的形成。The effects of tillage depth on the root growth and root activity of peanut in red soil slope field were studied in 2015 through field test, which set up the following four treatments： NT, no tillage; P 10 , ploughing depth 10 cm; P 20 , ploughing depth 20 cm; P 30 , ploughing depth 30 cm. The results showed that： （1） The three tillage treatments （especially P 20 and P 30 ） were obviously better than NT treatment in promoting root growth of peanut, but the root growth potential was the greatest in NT treatment; （2） In comparison with NT treatment, the treatments P 10 and P 20 were beneficial to the increase in root activity of peanut at various growth stages, and the latter treatment had the best effect of alleviating peanut root senescence; （3） The different tillage-depth treatments could affect the formation of peanut yield through affecting its root growth and root activity at key growth stages.

关 键 词：红壤坡耕地 耕作深度 根系生长 根系活力 

分 类 号：S341.1[农业科学—作物栽培与耕作技术] S565.2[农业科学—农艺学]