论文部分内容阅读
目的:探讨播期、密度、施肥等栽培措施对白芷产量的影响。方法:采用称重法测定白芷产量。结果:4月20播种的白芷产量最高为8373 kg/hm2,与4月5日和5月5日播种的白芷比较差异显著;密度为33万株/hm2的白芷产量最高达9300 kg/hm2,与26万株/hm2和38万株/hm2的白芷比较差异显著;施肥量为N30P24,N24P20和N18P16的白芷产量均高于对照,且差异显著。结论:白芷适宜播期为4月上中旬,适宜密度为33万株/hm2,适宜施肥量为N24P20(纯氮360 kg/hm2、P2O5300 kg/hm2)。
Objective: To explore the effects of sowing date, density and fertilization on the yield of Angelica dahurica. Methods: Weighing method was used to determine the yield of Angelica dahuricae. Results: The highest yield of Angelica dahuricae in April 20 was 8373 kg / hm2, which was significantly different from that of Angelica dahuricae sowed on April 5 and May 5. The highest yield of Angelica dahurica was 9300 kg / hm2 at the density of 330 000 plants / hm2, Which was significantly different from that of Angelica dahurica at 260,000 plants / hm2 and 380,000 plants / hm2. The yield of Angelica dahuricae with N30P24, N24P20 and N18P16 fertilizers were higher than that of the control, and the difference was significant. Conclusion: The optimum sowing date of Angelica dahurica is in the middle of April, the suitable density is 330,000 plants / hm2, and the suitable fertilizer is N24P20 (pure nitrogen 360 kg / hm2, P2O5300 kg / hm2).