Use a Mixture of Wood Lignin and Some Fertilizer to Improve the Chemical Content of Olive Seedlings

Abstract

The study was conducted during the season 2021-2020 and was distributed on two main axes: the first is to extract the lignin from the trees of Milea azedarach L. The extraction process was carried out in the chemistry laboratory belonging to the College of agricultural technology/Mosul according to the basic method used in the manufacture of paper and paper paste. the second is the selection of one of the olive fields in the Nineveh forest nursery belonging to the Department of Agriculture of Nineveh and combating desertification, to find out the effect of the extract of lignin added to types of fertilizers and the overlap between them in the chemical content of the leaves. The three-factor experiment with three iterators was designed according to the design of complete random sectors (RCBD), This experiment was carried out on her from the cuttings of olive cultivar Arbequina if the factor on the concentrations of the extract accent (0,60%), while the second three types of fertilizer(compound fertilizer NPK, fertilizer nitrogen of Urea, compost mixture (Urea50%+NPK50%), the second factor was four levels of the proportion of mixing shellac with the quality( 0,10%,15%,25%), Proceedings of the spraying process early in the morning until the pallet is full, using the spray device sales capacity 2 liters. The results of the study showed that the treatment of seedlings with lignin extract concentration (60%) has a significant effect on both the content of the leaves (percentage of nitrogen, percentage of phosphorus, percentage of potassium), while the treatment with compound fertilizer was superior and at a concentration of 129 g.l-1significant in the percentage of carbohydrates, and to spray the olive seedlings with nitrogen fertilizer (Urea) especially the concentration of 10 g.l-1 While the treatment with mixed fertilizer (NPK 50%+ Urea 50%) showed significant effects in most of the studied chemical qualities, as for the two-and three-way interactions of the study transactions gave a significant effect in improving all the chemical qualities of the leaves and various concentrations, which led to the emergence of positive effects on the seedlings of olive trees for the transactions understudy, which led to increased activity and growth of seedlings throughout the research period.