首页 > 分享 > 氮、磷、钾施用对灯盏花产量和主要提取物收获量的影响

氮、磷、钾施用对灯盏花产量和主要提取物收获量的影响

花匠小妙招
2024-09-19 06:00

摘要: 通过设置N、P、K不同施肥量处理，研究了施肥量差异对灯盏花（Erigeron breviscapus（Vant.）Hand.-Mazz.）的生长指标、产量、3种主要提取物（野黄芩苷、总咖啡酸酯和总黄酮）含量及单位面积收获量的影响。结果表明，增施N、P肥对植株生长指标具有促进作用。随着N、P、K肥施用量的增加，植株产量逐渐升高，且以施N肥的增产幅度最大。一定范围内施用N肥可导致灯盏花3种主要提取物含量降低，而P、K肥的施用则对此没有影响。3种主要提取物单位面积收获量与产量之间呈极显著正相关，N、P、K肥的施用可以提高灯盏花的产量从而增加3种提取物的收获量。N、P、K肥施用量分别为103.5、126.0、112.5 kg/hm2时获得的提取物单位面积收获量最大。

Abstract: We studied the effects of different fertilizers nitrogen (N), phosphorus (P), and potassium (K) application rates on the growth index, yield, content, and output per unit area of three extracts (baicalin, total caffeic acid ester, and total flavone) of Erigeron breviscapus(Vant.) Hand.-Mazz.). Results showed that N and P application effectively increased the plant growth index. Yield of E. breviscapus increased with elevated N, P, and K application, with N application resulting in the greatest increase. Content of the three E. breviscapus extracts decreased with the application of N within a certain range, whereas application of P and K had no effect. Output per unit area of the three extracts were positively correlated with E. breviscapus yield. The application of N, P, and K fertilizers increased the yield of E. breviscapus and outputs of the three extracts. The highest output per unit area of the three extracts was achieved at N, P, and K application rates of 103.5, 126.0 and 112.5 kg/hm2, respectively.

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