设施栽培土壤连作障碍成因分析及其修复措施.pdf

19 1 2 020 3 JournalofYanglingVocational TechnicalCollege Vol 19No 1 Mar 2020 2018 04 19 2019 A2019057 1980 712100 7 S626 A 1671 9131 2020 01 0006 04 YanglingVocational TechnicalCollege Yangling Shaanxi 712100 China Withtheadjustmentofindustrialstructure agriculturaldevelopmentinChinahasmovedtowardsanewpatternoffa cilitiescultivationandintensiveproduction andthetypesofcultivatedcropshavealsodevelopedfromsinglevegetablestoflow ers fruitsandChineseherbalmedicines Withtheexpansionofvegetableplantingareaandtheincreaseofplantingyears soil acidification secondarysalinizationandothercontinuouscroppingobstacleshavebecomeincreasinglyprominent Thispaper analyzesthecausesofsoilcontinuouscroppingobstaclesinfacilitiescultivationfromsoildiseases self poisoning nutrientin homogeneity soildegradationandartificialinequity Thecorrespondingrestorationmeasuresareputforwardfrom 7aspects suchasagronomicmeasures rationalfertilization scientificirrigation croprotation graftingcultivation soilsterilizationand bioremediation toprovidetechnicalguidanceforfacilitiescultivationinagriculturalproduction facilitiescultivation continuouscroppingobstacle causes restorationmeasures 1 2 3 5 6 4 5 1 1 6 7 M6 7 Mi 7 1 25cm 3 5d 20d 50 10d 9 10 4 11 12 3 6 1 1 70 30min 2 5 7d 13 60 70 3 1 2 60 70 3 6 2 1 98 15d 6 6 8 kg 12 18 2 17 33kg 8 19 3 20 40L 17 5 35g 4 6 1 4 1 50 1 5g 1 20 5 75 4g 5g 12kg 6 35 40 50mL 10kg 10d 7 1g 10g 17g 28g 0 2 10min 4 14 15 1 J 2009 21 11 51 54 2 J 2011 42 3 578 583 3 J 2010 5 62 64 4 J 2016 53 2 305 310 5 J 2017 33 8 91 98 6 J 2015 47 6 1 5 7 J 2016 7 52 8 J 2012 5 56 58 9 D 2015 10 J 2018 28 2 1 8 11 J 2017 24 49 12 J 2014 37 5 55 62 13 J 2014 18 153 154 14 J 2010 14 6 11 16 15 J 2003 26 6 81 85 9 1