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设施作物连作障碍
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设施作物连作障碍
Encyclopedia
农学
﹝农业生物环境与能源工程﹞
释
soil sickness in protected vegetable production
设施作物连作障碍
设施生产中,同一作物或近缘作物连续种植以后,即使在正常栽培管理的情况下,也会产生产量降低、品质变劣、病虫害严重、生育状况变差的现象。
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liquid ramjet
liquid ramjet assembly
liquid ramjet combustion chamber
liquid ramjet engine test
liquid ramjet fuel regulator unit
liquid ramjet ignition unit
liquid ramjet inlet
liquid ramjet nozzle
liquid ramjet performance parameter
liquid ramjet turbopump
liquid ring
liquid ring compressor
liquid ring vacuum pump
liquid rocket engine combustion chamber
liquid rocket engine for attitude controlling
liquid rocket engine ignition device
liquid rocket engine performance parameters
liquid rocket propellant
liquid rubber
liquid safety detector
liquid scintillant mixture
liquid Scintillation counter
liquid scintillation counter
liquid scintillation counting method
liquid scintillation detector
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