Abstract
This study was aimed to determine the impact of Conocarpus erectus L. compost fertilizer, and some micronutrients on growth and production of potato. This research was conducted at one of the fields of the College of Agricultural Engineering Sciences - University of Baghdad. The experiment was implemented using factorial arrangement (4X3X3) within randomized complete block design with three replicates. Conocarpus fertilizer was represented the first factor with three levels (7.5, 15, 30 ton.ha-1), which symbolized (C2, C3, C4). Chemical fertilizer as recommended dose as a control, which symbolized (C1). The second factor was foliar spraying with three levels of iron (0, 100, 200 mg.L-1), which symbolized (F0, F1, F2). The third factor is foliar spraying with three levels of boron (0, 50, 100 mg.L-1), which symbolized (B0, B1, B2). The statistical analysis showed superiority of C3 in producing significant values of the studied traits such as, leaf area (154.77, 187.93 dcm2) for fall and spring seasons respectively, plant yield (649.7 gm.) for fall season only. Also the results revealed the significant impact of F2 treatment in producing high leaf area (153.63, 177.22 dcm2) for fall and spring seasons respectively. B2 treatment demonstrated significant values in producing high starch percentage (10.09%, 10.85%) for fall and spring seasons respectively, The results that obtained from triple interaction exhibited significant superiority of treatments C1F1B2 and C3F2B0 in producing the highest plant yield (811 g, 1239.2 g.) for both seasons respectively.
Highlights
Potato plant (Solanum tuberosum L.) belongs to Solanaceae family considered one of the most crucial vegetable crops in worldwide
The significant values are attained in C3 (76.35 cm) (68.83 cm) for fall and spring seasons respectively, while the lowest values found in C2 (65.23 cm) (64.62 cm) for both seasons respectively
The tallest plants are found in F2 (74.5 cm) (68.95 cm) for fall and spring seasons respectively in comparison with the shortest plants in F0 (70.53 cm) (64.58 cm) for both seasons respectively
Summary
Potato plant (Solanum tuberosum L.) belongs to Solanaceae family considered one of the most crucial vegetable crops in worldwide. Usman et al (22) mentioned that adding Conocarpus bioachar (8% w/w) to soil mitigated salt stress on tomato plant. It was caused increasing in yield (43.3%) in comparing to control treatment. Moinuddin et al (15) reported that spraying potato plant with a fertilizer content iron and boron increased the plant height, number of leaves, and root length. As what mentioned previously this study aimed to manufacture a high quality fertilizer from pruning residues of Conocarpus plant after composition and experiment it for the first time on the growth and yield of potato plant. In addition to study the effect of iron and boron and their interaction with
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