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目的研究钾肥不同施用量对金荞麦的影响。方法设5个K2O不同施用量,考察各处理的金荞麦产量、植株性状及品质。结果当K2O施用量达75kg/hm2时,金荞麦根茎鲜重最高,金荞麦根茎表儿茶素在施钾量37.5kg/hm2时最高,醇溶性浸出物在施钾量75kg/hm2时最高,5个施钾水平的水分和总灰分均低于药典标准。结论在金荞麦种植中,适宜的K2O用量为37.5~75kg/hm2,可获得较高根茎产量和优良的品质。
Aim To study the effects of different potassium fertilizers on the buckwheat. Methods Five different application rates of K2O were set up to investigate the yield, plant traits and quality of the buckwheat. Results When the application rate of K2O was 75 kg / hm2, the fresh weight of Fritillaria cirrhosa was the highest, the content of epicatechin of F buckle was highest at 37.5 kg / hm2 of potassium, the highest of alcohol soluble extract was 75 kg / The five potassium levels of water and total ash were lower than the pharmacopoeia standards. Conclusion In the buckwheat planting, the suitable amount of K2O is 37.5 ~ 75kg / hm2, and the higher rhizome yield and excellent quality can be obtained.