目的测定不同生长期限和不同栽培方法的掌叶大黄中大黄素和大黄酚的含量，为大黄的GAP规范化种植提供参考依据。
OBJECTIVE to comparing the contents of emodin and chrysophanol in Rheum Palmatum L. of different plant periods and cultivated methods, to offer a scientific basis for GAP.
论述了人参的形态特征和生长习性及近自然人参栽培的意义和目的，阅明了近自然人参的种植技术和管理措施。
This paper states the morphological characteristic, growth habit of Panax, introduces the significance and goal of cultivation close-to-nature Panax and the technique and management measure.
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