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农业环境保护发展史
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农业环境保护发展史
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农学
[农业环境保护总论]
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development history of agricultural environmental protection
农业环境保护发展史
防治土壤肥力过度衰竭、维护土地休养生息等农业环境保护的行为、制度、理论、技术及其体制机制的发展过程。
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