Tikrit Journal for Agricultural Sciences (Dec 2022)
The role of spraying with NPK chemical fertilizer and organic fertilizer on some vegetative and floral indicators and the Active ingredients Origanum majorana
Abstract
The experiment was carried out in the wooden canopy of the Department of Horticulture and Landscaping – College of Agriculture – Tikrit University for the autumn season 2021 , the experiment included studying the effect of tow overlapping factors , the first being spraying with chemical fertilizer NPK ( 0 , 1.5 gm L-1 ) and the second factor included the spraying of compost tea fertilizer ( poultry manure extract ) at levels ( 0 , 50 , 100 gm L-1 ) . The experiment designed by randomized complete block design ( RCBD ) with three replicates , the results showed the superiority of plants that were sprayed with chemical and organic fertilizers over plants that were not sprayed with either of them . The superiority of spraying with chemical fertilizer NPK at the level of F1 ( 1.5 g L-1 ) in plant height cm , number of leaves leaf plant-1 , leaf area cm2 , number of flowers flower plant-1 , weight of flowers mg , as it gave the highest values reached ( 69.25 cm , 2729.37 leaf plant-1 , 792.87 cm2 , 492.99 flower plant-1 , 0.529 mg ) straight , the lowest values were for the comparison treatment . Also , the same treatment outperformed in the mineral content of the plant , the percentage of volatile oil and the active ingredients . Also , the treatment of spraying with compost tea was superior in the mentioned characteristics at the level of E2 ( 100 g L-1 ) . The results of the interaction showed that there were significant differences in which the treatment was distinguished F1E2 ( 100g L-1 poultry offal extract + 1.5 g L-1 NPK ) it gave the highest values for the traits ( plant height 71.84 cm , number of leaves 2978.30 leaf plant-1 , total leaf area 862.92 cm2 , number of flowers 525.44 flower plant-1 , weight of flowers 0.556 mg flower-1 , N 2.520% , P 0.396% , K 2.020% , volatile oil 4.52% , Cymen 13.414 mg , Myrcene 3.129 mg , Sabinen 3.319 mg ) , the comparison treatment F0E0 gave the lowest values for the mentioned traits , which amounted to ( 57.41 cm , 2179.20 leaf plant-1 , 546.54 cm2 , 428.56 flower plant-1 , 0.418 mg flower-1 , 2.346% , 0.296% , 0.997% 3.47% , 11.622 mg , 1.407 mg , 1.508 mg ) straight .
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