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黑龙江省大面积试种紫草黑龙江省宾县、呼兰、阿城等县今年从辽宁引进试种的柴草面积达３０００多亩。紫草可从根茎中提取脂溶性和水溶性天然红色素，其种子、茎干具有较高的药用和营养价。辽宁省农科院所属梁丰科技公司在攻克从紫草中提取天然红色素的技术方面，取得突破...
Heilongjiang large-scale cultivation of Lithospermum Heilongjiang Province Binxian, Hulan, Acheng and other counties this year from Liaoning Province to introduce seed cultivation of firewood area of 3,000 mu. Lithospermum can be extracted from the roots of fat-soluble and water-soluble natural red pigment, the seeds, stems have a high medicinal and nutritional value. Liang Feng, a subsidiary of Liaoning Provincial Academy of Agricultural Sciences, overcomes the technology of extracting natural red pigment from Lithospermum ...