Abstract
An experiment was conducted in sandy clay loam textured soil at the research station of the College of Agriculture / University of Anbar to find out the effect of adding white Spent mushroom residues Agaricus bisporus, date residues and bacterial inoculum on the growth and yield of broccoli. A three-level factorial experiment was designed for this purpose: the first is white mushroom residues with three levels [0, 10, and 20 tons ha−1] and symbolized by symbols [M0, M1, and M2], and the second date residues with three levels [0, 10 and 20 tons.ha−1] and symbolized by symbols [D0, D1, and D2] and the third factor is bacterial inoculum [Azotobacter chroococcum+Pseudomonas putida] which included two levels; No addition [B0] and inoculum addition [B1], added with all the mentioned treatments half of the fertilizer recommendation. The experiment was designed with a randomized completely blocks design [RCBD] and three replications. The results showed that the triple interaction of the treatments at the highest levels [B1D2M2] gave the best results and significantly for Plant height [PHA], Leaf Area [LA], number of leaves [NOL], number of secondary heads [NOSH], weight of the main flower disc [NOMF] and diameter of the main flower disc [DOMFD] ]75.30 cm, 1182.70 cm2 plant−1, 70.22 leaf−1, 13.53 plant heads−1, 1515.50 g and 26.49 cm] respectively. The control treatment with no residues and no bacterial inoculum [B0D0M0] was added reveal the lowest rates for all the mentioned properties.
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