寒旱农业科学2025，Vol.4Issue(8)：707-712,6.DOI:10.3969/j.issn.2097-2172.2025.08.004
不同耕作方式对旱作区新修梯田土壤理化性质及马铃薯产量的影响
Effects of Different Tillage Practices on Soil Physical and Chemical Properties and Potato Yield of New Terraced Farmlands in Dry Farming Region
摘要
Abstract
To select appropriate tillage methods for improving soil fertility and crop yield in newly terraced farmlands of dry farming areas,a 3-year fixed-site experiment was conducted in newly constructed terraces of Jingning and Qin'an.3 tillage methods suchat as normal rotary tillage(TT),deep loosening(DLT),and vertical deep rotary(VRT)were compared to assess their effects on soil bulk density,organic matter,available nitrogen contentd,and potato yield.Results showed that both DLT and VRT reduced soil bulk density in of the dug and filled sections of the terraces to varying degrees in Jingning and Qin'an,with VRT showing more significant reductions.Compared with TT,VRT reduced soil bulk density in the 0 to 20 cm and 20 to 40 cm layers of the dug section by 5.26%to 6.72%and 6.52%to 7.25%,respectively,and in the filled section by 5.38%to 6.11%and 6.72%to 7.46%,respectively.VRT also increased soil organic matter and available nitrogen content in both dug and filled sections at both test sites,especially in the 10 to 20 cm and 20 to 40 cm layers.Potato yield under VRT increased by 22.17%to 24.28%in the dug section and 20.49%to 31.10%in the filled section compared with TT.Therefore,vertical deep rotary tillage is an efficient tillage method suitable for rapid early-stage conditioning and fertilization of new terraced farmlands in dry farming areas.关键词
旱作区/新修梯田/耕作方式/土壤理化性质/马铃薯产量Key words
Dry farming area/New terraced farmland/Tillage method/Soil physical and chemical property/Potato yield分类
农业科技引用本文复制引用
柳燕兰,雷康宁,马明生,李世成,侯慧芝,尹嘉德,张建稳,杨富位,张建荣..不同耕作方式对旱作区新修梯田土壤理化性质及马铃薯产量的影响[J].寒旱农业科学,2025,4(8):707-712,6.基金项目
甘肃省重点研发计划(23YFNA0018) （23YFNA0018）
甘肃省农业科学院区域协同创新专项(2025GAAS01) （2025GAAS01）
甘肃省农业农村厅科技支撑计划(KJZC-2024-22) （KJZC-2024-22）
中央引导地方科技发展资金项目(25ZYJA025). （25ZYJA025）
