Browsing by Author "Husamalddin, Aso"

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Effects of Different Humic Acid Doses on Yield and Quality Properties of Corn (Zea Mays L.) in Iraq-Sulaymaniyah Conditions
(2023) Husamalddin, Aso; Eryiğit, Tamer
The research was carried out in the ecological conditions of the Ranya region of Sulaymaniyah province, Iraq in the summer growing season of 2020. The goal of the study was to investigate the impact of humic acid on the growth and yield of corn. The trial included two commercial cultivars (DKC6050 and DKC6664) and soil application of four rates of humic acid (HA1: 0 kg/ha, HA2: 60 kg/ha, HA3: 120 kg/ha and HA4: 180 kg/ha). The experiment was conducted according to the split-plot experimental design in randomized blocks. In the study, a trial pattern was designed so that varieties were placed in the main plots, and doses of humic acid were placed in the subplots for a more precise investigation of their effects on the cultivars. In the experiment, the characteristics of growth, yield, and yield components were examined. According to the results, it was determined that applying humic acid positively affected all vegetative and yield parameters except for the germination time, cob diameter, protein ratio, and oil ratio. As the result of the interaction between the cultivars and the humic acid doses, significant results were obtained for seed yield, 100 seeds weight, yield per plant, cob diameter, harvest index, leaf area index, stem diameter, and silk appearance time. The highest grain yield was obtained from the DKC6050 variety (9844.8 kg/ha). Responses of cultivars to humic acid were the same and therefore no appreciable differences were observed between cultivars for comparison. However, it has been determined that the DKC6050 variety is a promising variety in terms of many characteristics and can be cultivated in the ecology where the research is carried out.
Effects of Humic Acid and Nitrogen Levels on Growth, Yield, and Nutrient Uptake of Flax (Linum Usitatissimum L.) in Calcareous Soil
(Centenary University, 2025) Eryiğit, Tamer; Husamalddin, Aso; Abdullah, Azad; Arbati, Muhamad Tahsen Maruf
Flax is one of the earliest plants that humans have domesticated. Due to its high omega-3 and fatty acid content, its cultivation and consumption have increased as a healthy oil resource. It was tested in the fields of Qaladza city, Sulaimani governorate, Iraq, during the growing season of 2022–2023. Four different amounts of humic acid (0, 50, 100, and 150 kgHA ha-1) and four different amounts of nitrogen fertilizer (0, 100, 200, and 300 kg N ha-1) were used to see how they affected the flax variety Thorshansity 72, which is a cultivar from Poland. Results indicated that, from a nutritional point of view, humic acid and nitrogen are two critical elements in plant growth. There was a big difference in the plant height, number of fruiting branches, and number of capsules per plant based on the humic acid and nitrogen fertilizer rates. There was also a difference in the number of seeds per capsule and the seed yield. There were also differences in the nutrients found in the soil, shoots, and roots, and the amount of oil in the seeds of a flax plant.