粉垄耕作对植烟土壤理化性质及团聚体特征的影响  

Effect of Smash-ridging Technology on Soil Physicochemical Properties and Aggregates Characteristics of Flue-cured Tobacco Field

作　　者：薄国栋 胡希好 王树键[3] 丁志勇 赵福彬 王耀斌 邰振益 刘红霞 王启业 申国明[1] BO Guo-dong;HU Xi-hao;WANG Shu-jian(Tobacco Research Institute,Chinese Academy of Agricultural Sciences,Qing-dao,Shandong 266100;Qingdao Tobacco Limited Corporation,Qingdao,Shandong 266100;Shandong Tobacco Industrial Co.,Ltd.,Ji-nan,Shandong 250100)

机构地区：[1]中国农业科学院烟草研究所,山东青岛266100 [2]山东青岛烟草有限公司,山东青岛266100 [3]山东中烟工业有限责任公司,山东济南250100

出　　处：《安徽农业科学》2024年第13期136-139,221,共5页Journal of Anhui Agricultural Sciences

基　　金：山东青岛烟草有限公司科技项目(2020370200240076)。

摘　　要：[目的]探究粉垄耕作对植烟土壤养分含量及团聚体结构影响,为粉垄耕作应用提供理论指导。[方法]以青岛烟区传统翻耕(CK)为对照,对比30 cm(SM1)、40 cm(SM2)、50 cm(SM3)粉垄深度下的土壤养分及团聚体特征的影响。[结果]在相同耕作深度条件下,粉垄耕作技术较传统耕作能够提高植烟土壤全氮、速效磷、有效钾及有机质含量。粉垄耕作增加>2.000 mm、>1.000~2.000 mm机械稳定性团聚体及>0.250 mm水稳定性团聚体含量,促进大团聚体及水稳定性团聚体形成,且以粉垄耕作深度40 cm时的养分含量、平均重量直径(MWD)及几何平均数(WMD)最大,分形维数(D)最小。[结论]粉垄耕作技术能够提高植烟土壤养分含量,改善土壤结构,且以40 cm粉垄深度作为青岛烟区最适宜的耕作深度。[Objective] To study the effect of smash-ridging technology on soil nutrients and soil structure of flue-cured tobacco field,and to provide theoretical guidance for the application of smash-ridging technology.[Method] The effects of different tillage depths(30,40,50 cm) of smash-ridging technology on soil nutrients and aggregate characteristics of Qingdao tobacco-planting soil were studied.[Result] Compared with traditional tillage(CK),the content of total nitrogen,available phosphorus,available potassium and organic matter in tobacco-planting soil could be improved by smash-ridging technology under the same tillage depth condition.The content of mechanical-stable aggregates at >2.000 mm,>1.000-2.000 mm particle size and the water-stable aggregates at >0.250 mm particle size were increased by smash-ridging technology which promoted the formation of large aggregates and water-stable aggregates.Meanwhile,the nutrient content,mean weight diameter(MWD) and geometric mean(WMD) were maximum and the fractal dimension(D) were minimum when the depth of smash-ridging technology was 40 cm.[Conclusion] The smash-ridging technology could improve the soil nutrient content and soil structure in Qingdao tobacco-planting area,and the best effect was achieved when the depth of smash-ridging technology was 40 cm.

关 键 词：粉垄耕作 植烟土壤 土壤养分 团聚体特征 

分 类 号：S153[农业科学—土壤学]