盆栽金盏菊氮磷钾肥料配方的研究

Studies on Fertilization Effect and Fertilizer Formula Screen for Calendula officinalis L.

采用"3414"不完全正交回归设计,利用盆栽试验研究金盏菊氮磷钾肥施用效果,并筛选适宜的肥料配方。结果表明,氮肥和磷肥对金盏菊的营养生长和生殖生长均有较大影响,而钾肥的效果主要表现在生长后期,氮、磷间有明显的正交互作用。以金盏菊总花数、功能叶片数、株高、植株干样质量为指标进行统计分析,得出盆栽(每盆装基质2kg)金盏菊氮(N)、磷(P2O5)、钾(K2O)的最佳施用量为0·4、0·2和0·3g·kg-1。

Effect of N, P and K fertilization on Calendula officinalis L. growth and suitable fertilizer formula of N, P, K nutrients ratio for the flower were carried out through pot experiment with ＂3414＂ incomplete regression-orthogonal design. Our results showed that the reproductive growth. The effect of K was mainly reflected Regarding N and P played an important role in vegetative and in late growth stage. There is a obvious of N and P. total flowers, functional leaves, plant height and dry mass as the target, it was showed that the recommended fertilizer amount of N, P2O5 and K2O for pot application were 0. 4, 0. 2 and 0. 3 g · kg^-1 （each pot filled with 2 kg substrate） .