The Role of Planting Dates and Spraying with Traditional and Nano NPK Fertilizer on some Vegetative Traits and Yield of Trigonellafoenum-graecum

Abstract

A field experiment was carried out in the holy city of Karbala - Al-Hussainiya district for the year (2022-2021) for the winter-season of the College of Agriculture - University of Karbala to study planting dates and spraying with traditional and nano-NPK fertilizer in the vegetative growth characteristics of the fenugreek plant for cultivation (20/10/2021) (10/11/2021) (30/11/2021) and the second, five fertilizer combinations (water only, 1 g.L -1 traditional neutral fertilizer, 2 g.L-1, 100 ml.L -1 of nano fertilizer, 200 ml.L-1 of nano fertilizer, The results showed that the second planting date was superior to the other dates in plant height, leaf area and number of pods per plant, which amounted to (70.37 cm, 285.10 cm 2, 10.93 pods. Plant-1), respectively, While the third date recorded the highest number of branches, which amounted to 7.12 branches. plant-1, while the first date recorded the highest number of seeds per pod, which reached 9.98 seeds.pod-1, and the combinations of fertilizers used together had a significant effect, as the third combination excelled by giving it the highest average number of branches which reached 7.09 plant-1, and the highest average number of pods per plant was 10.74 pods. Plant-1, and the highest number of seeds in one pod was 10.50 seeds. pod-1, While the second combination recorded the highest average leaf area of 298.50 cm2, and the fifth combination recorded the highest fenugreek plant height of 69.16 cm. As for the bilateral interaction between the study factors, the treatment of the second planting date and the third fertilizer combination recorded the highest plant height of 75.67 cm and the highest number of pods 12.20 pods. plant-1, While the third planting date and the third fertilizer combination recorded the highest number of branches of the plant, which amounted to 7.73 branches. Plant-1, as for the third planting date and the second fertilizer combination, it gave the highest leaf area amounting to 331.50 cm2, and the first planting date and the third fertilizer combination recorded the highest number of seeds per pod of 11.30 seeds. horn-1.