农业技术推广模式创新对食用菌安全供给的影响——以成都市大邑县为例
농업기술추엄모식창신대식용균안전공급적영향——이성도시대읍현위례
Influence of Agricultural Technology Extension Pattern's Innovation on Safe Supply of Agricultural Products——A Case Study on Edible Fungi in Dayi County of Chengdu
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