Effect of Nitrogen and Organic Fertilization on Growth and Yield of Two Cabbage Varieties Brassica oleracae Var. Capitata
DOI:
https://doi.org/10.56286/ntujavs.v1i1.123Keywords:
nitrogen, humic, fertilizer, cabbageAbstract
The experiment was conducted at the vegetable field of Department of Horticulture and Landscape / College of Agriculture and Forestry / University of Mosul during the growing season 2019/2020 to study the effect of three factors: the first, two varieties of cabbage )Copenhagen market and Cherman(, the second, three levels of nitrogen fertilizer )0, 200 and 400 kg. ha-1(, and the third: two concentrations of humic acid )0 and 6 ml. L-1(, by using the split-split plots system within randomized complete blocks design RCBD with three replications. The results were as follows(please discussion the first factor and 2nd and 3rd and interaction between two and three factors: The treatment of Copenhagen market cultivar and fertilizer 400 kg N. ha-1 with humic 6 ml.L-1 were significantly superior in all studied traits represented in head circumference 58.50 cm and the number of unwound outer leaves 20.83 leaves. Plant-1, the number of inner-coiled 35.00 leaves. Plant-1, stem weight, stem length and total head weight 2918 g, and marketing head weight 1774 g, total and marketable yield of heads 121.581 and 73.901 t. ha-1, respectively, and percentage of dry matter in leaves 10.03% compared to the other treatments.
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