目的:获得牛蒡子高产的栽培措施。方法:采用完全随机区组试验设计的方法在大田种植,分析不同的栽培措施对牛蒡农艺性状、物候期和牛蒡子产量、品质的影响。结果:试验结果表明,8月28日种植的牛蒡株高、牛蒡子千粒重、牛蒡子亩产最高。当种植密度为1 482株/667 m2时,牛蒡子亩产最高。牛蒡苷含量随着种植时间推迟、密度增加反而成增加趋势。分次施肥的牛蒡株高、牛蒡子千粒重、牛蒡子亩产、牛蒡苷含量显著高于一次性施肥。覆膜牛蒡株高、牛蒡子亩产、牛蒡苷含量、相对含水量分别高于露地7.74%、10.87%、6.38%、24.20%。打顶牛蒡子亩产比不打顶高11.09%,分枝数低35.89%。种植时间早和打顶都缩短了牛蒡生长周期。结论:根据试验结果得出牛蒡子高产栽培措施为:8月28日左右进行直播,种植密度为1 482株/667 m2,肥料分4次施用,在厢面覆盖薄膜,抽薹时进行打顶。
Objective:To find out the high yield cultivation measures for Arctii Fructus. Methods:Completely randomized block ex- periment design method was used in the field planting, to analyze the effect of different cultivation way on agronomic characters,pheno- logical phase,quality and quantity of Aretii Fruetus. Resu]ts:Arctium lappa planted on August 28 had the best results of plant height, thousand seeds weight and yield. The highest yield of Arctii Fructus was got at the density of 1 482 plants/667 m2. Arctiin content was in an increase trend with the planting time delay and planting density increasing. The plant height,thousand seeds weight,yield and are- tiin content by split application of fertilizer were significantly higher than that by one-time fertilization. Compared with open field Arctium lappa,plant height, yield, arctiin content and relative water content of plastic film mulching Arctium lappa was higher by 7.74%, 10. 87% ,6. 38% and 24. 20% , respectively. In the topping Arctium lappa, the yield was increased by 11.09% , with 39. 89% less branching number. Early planting time and topping shortened the growth cycle of Arctium lappa plant. Conclusion:The high-yield culti- vation measures of Aretii Fructus are : around August 28 to sowing, planting density of 1 482 plants/667 m2, split application of fertilizer for four times, covering film on surface of the soil and topping in bolting.