The British development group Practical Action says the best way to prepare foods for storage is at harvest time while still in the field.
专家指出蔬果最佳的储藏时间是当它们还在地里的丰收时节。
Objective: To determine the alkaloids content of Pinellia ternate in different growing time for finding out the best harvest time.
目的：测定半夏不同生长期总生物碱的含量，为确定合理的采收期提供依据。
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