Effect of organic and bio-fertilization treatments on fennel plant under drip irrigation system in bahria oases : ii- oil productivity and some chemical compounds

الملخص EN

This experiment was carried out at the farm of Royal Herbs Company - Bahria Oases - Giza in a newly reclaimed desert land under the drip irrigation system during two successive seasons 2018/2019 and 2019/2020 with the aim of studying the effect of organic fertilizer (compost) and bio fertilization treatments (phosphorein – Effective microorganisms - Minia azoteine and their combinations) and the effect of their interaction on oil production and some chemical compounds, namely, pigments (chlorophyll a, b and carotenoids) and nutrients percentage (N, P and K % ) on fennel plants.

The obtained results indicated that the application of compost was significantly increased oil productivity (oil% , oil yield per plant and per feddan) and the studied chemical components (chlorophyll a, b and carotenoids; and N, P and K% ), the best treatment was 20 ton compost/fed.

All studied parameters were significantly affected by bio-fertilization, the best treatment was PHOS + EM + MA.

Aslo, the interaction effect between the two factors was significant and the best interaction treatment was 15 or 20 ton/fed.

with (PHOS + EM + MA) of bio-fertilization in the two seasons.