Effect of humic acid and bio20 nutrient solution on growth and yield of green onions

Abstract EN

The study was conducted at the Agricultural Research and Experiments Station, College of Agriculture, University of Kirkuk for the autumn agricultural season 2019/2020, To study the effect of adding Magic Leon organic fertilizer at levels 0-300 kg/ha to the soil and spraying with the nutrient solution Bio20 at concentrations of 2-0 ml/L three times every 15 days, and in three cultivars of onions: local white cultivar, local red cultivar, white cultivar( Syrian).

The factor experiment (3 x 2 x 2 )using the Randomized Complete Block Design (RCBD), with three replicates.

The most important results obtained can be summarized.

Magic Leon fertilizer gave a significant increase in the length of the longest leaf, number of leaves, leaf area, chlorophyll index, bulb length, bulb diameter, bulb neck thickness.

The spraying with the nutrient solution Bio20 significantly increased the length of the longest leaf, leaf area, chlorophyll index, bulb length, bulb diameter, bulb neck thickness, which reached 62.78 cm, 152.86 cm2, CCI 16.73, 12.11 cm, 2.45 cm, 26.06, 2.23.

cm respectively.

The results showed significant differences in the total yield when adding Magic Leon organic fertilizer, while the effect of spraying with the nutrient solution was not significant on the total yield.As for the effect of the cultivars, the local white cultivar significantly excelled the local white cultivar in the number of leaves, leaf area, bulb length, bulb diameter, bulb neck thickness, total yield, which amounted to 7.33 leaves.

Plant -1, 170.20 cm2, 12.27 cm, 2.86 cm, 2.59 cm The local red cultivar gave a significant increase in the length of the longest leaf, chlorophyll index, which reached 63.97 cm, CCI 16.75, respectively.