关键词: 鱼腥草, 猪粪, 牛粪, 产量, 品质, 养分吸收

Abstract: Effects of organic fertilizer on output, quality and nutrient uptaken by Houttuynia Cordata Thunb. were investigated through pot experiment. Results show that when pig dung is applied with a general quantity the output didn't increase obviously, while with a large quantity(225g/per basin, it is equivalent to 76500kg/hm² in field) the output increased clearly(P=0.05). In clay soil the output is higher by an average of 34.5% with the use of cow dung than that of pig dung. Soluble sugar content of root increases under the appropriate amount of organic fertilizer, but decreases under the overmuch organic fertilizer; Vc content of root decreases directly with the increasing of organic fertilizer. Cow dung has disadvantageous influence on forming of methylnonylketone of Houttuynia Cordata Thunb. The highest medicinal value is achieved when the amount of pig dung is 150g/per basin(it is equivalent to 51000kg/hm² in field), but under the overmuch use of pig dung methylnonylketone content is reduce largely. The use of organic fertilizer is one way to improve N, P, K nutrition of Houttuynia Cordata Thunb. because it rises evidently N, P, K content.

Key words: HOUTTUYNIA CORDATA THUNB., PIG DUNG, COW DUNG, OUTPUT, QUALITY, NUTRIENT UPTAKE