农产品加工

** A healthy field of crops thriving under a bright sun. Focus on the rich soil, showing diverse organic matter and microorganisms. In the background, a farmer is applying fertilizer thoughtfully, not excessively. The overall feel should be one of balance and sustainable agriculture. Focus keywords: healthy soil, organic matter, sustainable farming, balanced fertilizer use. **
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农业技术资格证：这些核心科目没搞懂，考试吃大亏！

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