NUTRITIONAL REQUIREMENT AND FERTILIZATION STRATEGY IN LIATRIS CALLILEPIS

Liatris callilepis is one of the three main Chilean cut flower exports in terms of exported volume, that reaches 7 000 boxes and it is expected to increase in the coming years.
No data are available in Chile on nutritional requirements of liatris.
A study was conducted to determine the dry matter accumulation and N, P, and K uptake under different levels of N, P, and K fertilization.
Liatris corms were field-planted in late spring in a soil high in organic matter and potassium.
The crop was fertilized with 0:0:0, 350:400:40, and 700:800:80 kg/ha of N, P₂O₅, and K₂O, respectively.
At flower harvest uptake in the unfertilized treatment was 240 kg N, 30 kg P and 316 kg K per ha (corm content at planting time is not included). Total N uptake was highest in the treatment with the maximum N levels, while P and K uptake did not show significant differences among treatments, except in two stages of development.
Total dry matter accumulation and flower quality were unaffected by increased fertilizer dosage.

VII International Symposium on Flowerbulbs

F. Schiappacasse, J. Hirzel, E. Ruz

https://doi.org/10.17660/ActaHortic.1997.430.36