XU Jinqiang,LIU Qingtao,LIU Suhui,et al.Effect of Garlic Straw on Physical and Chemical Characteristics of Continuous Cropping Soil and Root Activity of Tomato in Solar Greenhouse[J].Northern Horticulture,2016,40(01):152-156.[doi:10.11937/bfyy.201601041]
大蒜秸秆还田对温室番茄连作土壤理化性质及其根系的影响
- Title:
- Effect of Garlic Straw on Physical and Chemical Characteristics of Continuous Cropping Soil and Root Activity of Tomato in Solar Greenhouse
- 文献标志码:
- A
- 摘要:
- 以“凯特二号”番茄为试材,研究了大蒜秸秆不同施用量对温室番茄连作土壤温度、容重、孔隙度、pH值和电导率等理化性质及其根系活力的影响。结果表明:施用大蒜秸秆后,温室番茄连作土壤0~15 cm内的最高和最低温度均与秸秆量成正比,最高和最低温度分别比对照高2.39℃和1.00℃;不同土层容重均随秸秆施用量增加而降低,孔隙度则随之而增加,0~10 cm土层的变化幅度最大,容重最大增幅和孔隙度的最大降幅分别为6.71%和6.18%;大蒜秸秆处理还可提高土壤pH值、降低土壤的电导度(EC),可减轻温室土壤酸化和遏制土壤次生盐渍化,0~20 cm土层内的效果较明显;施用大蒜秸秆提高了番茄生长前期的根系活力(最高为31.45%),延缓了后期根系衰老。因此,大蒜秸秆还田可改善温室番茄连作土壤理化性质和提高番茄根系活力。
- Abstract:
- Taking tomato ‘Kate No.2’ as the experimental material,the effect of different dosage of garlic straw on physical and chemical characteristics of continuous cropping soil and root activity of tomato in solar greenhouse were studied.The results showed that after applying with garlic straw,the highest and lowest temperature in 0-15 cm soil layer were moved in concert with garlic the amount of straw,and were higher 2.39℃ and 1.00℃ than the control respectively.The bulk density of different soil layers decreased with the increase of straw application amount,but the porosity of soil was opposite.The change range in 0-10 cm soil layer were the largest,the biggest increase of bulk density and the biggest drop of porosity were 6.71% and 6.18%,respectively.Garlic straw returning to field could improve soil pH value,reduce soil conductance (EC),reduce soil acidification and curb soil secondary salinization,and those effect were obvious in 0-20 cm soil layer.The application of garlic straw increased the root activity of tomato in the early stage(max 31.45%),and delayed root system senescence in late stage.Therefore,garlic straw returning could improve the physical and chemical characteristics of continuous cropping soil and root activity of tomato in solar greenhouse.
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备注/Memo
第一作者简介:徐金强(1963-),男,山东高密人,本科,副研究员,现主要从事蔬菜栽培生理学等研究工作。E-mail:330730016@qq.com.基金项目:济南市高校院所自主创新资助项目(201302057)。