Effect of Garlic Straw on Physical and Chemical Characteristics of Continuous Cropping Soil and Root Activity of Tomato in Solar Greenhouse  

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（英文）

作　　者：刘素慧 徐金强 尉辉 刘庆涛 徐峥 

机构地区：[1]山东农业工程学院,山东济南250100

出　　处：《Agricultural Science & Technology》2016年第6期1349-1354,共6页农业科学与技术（英文版）

基　　金：济南市高校院所自主创新资助项目(201302057)~~

摘　　要：Taking tomato ＂Kate two＂ as the experimental material, the effects 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, maximal and minimal temperatures in 0-15 cm soil layers were directly proportional to the amount of returned garlic straw, which were 2.39 ℃ and 1℃ higher than that of the control respectively. The unit weight was decreasing upon the amount of applied garlic straws of soils in different depths, but the porosity of soil was increasing. For example, unit weight and porosity changed the most significantly in soils in the depths of 0-10 cm, which went down by 6.71% and 6.18%, respectively. Besides, garlic straw returning to field improved soil pH, reduced soil conductivity and soil acidification and relieved soil secondary salinization, especially in 0-20 cm soil layers. In addition to that, the application of garlic straw increased the root activity of tomato （max 31.45%）, and delayed root system senescence in late stage. Therefore, garlic straw returning could improve the physical and chemical characteristics of soil by succession planting and root activity of tomato in solar greenhouse.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、p H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,最高和最低温度最高分别比对照高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p H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。

关 键 词：Garlic Crop straw TOMATO Physical and chemical characteristics Root activity 

分 类 号：S626[农业科学—园艺学] S641.2