Effect of planting distances and phosphate fertilization on two cultivars of broad bean (Vicia faba L)

A field experiment was conducted during the two winter seasons of the year (2021-2022) in an agricultural field in the Al-Mahaweel District of Babylon province. To study the effect of planting distances and phosphate fertilization on two cultivars of broad bean, The Randomized Complete Block Design (RCBD) was used in the implementation of the experiment, in the order of the split-split plots. The experiment included the study of three factors: (the first factor is two cultivars of broad beans (the cultivate Haba Luz De Otono of Spanish origin V1 and the cultivar Extra Hative aGraine violette of Italian origin V2).As for the sub plot, they included three planting distances, which are (D030, D140, and D250 cm), while the sub-sub plot included three levels of phosphate fertilization, which are (F140, F280, F2160) kg/ha, thus the number of experimental units was (18) experimental units and with three replications. The results were as follows: The cultivar V2 significantly excelled in all traits (plant height 75.31 cm, number of leaves 168.49 leaves. plant-1, one leaf area 32.23 cm2, chlorophyll in leaves 46.08 spad, average plant dry weight 24.75 g, percentage of nitrogen, phosphorous and potassium in leaves). 3.49,0.34,4.49)%, the average number of green seeds per pod 5.09 seeds. pod-1, the average weight of 100 green seeds 158.78 g,The phosphate fertilization treatment was also significantly excelled in most of the studied traits, while the planting distance D2 treatment was significantly excelled in the traits of plant height 75.53 cm, number of leaves 184.60 leaves, plant -1, one leaf area 34.63 cm 2,Average chlorophyll in leaves 47.46 spad, average dry weight of the plant 26.49 g, percentage of nitrogen, phosphorous, and potassium in leaves (3.56, 0.36, 4.89)%, the average number of green seeds per pod 5.33 seeds.pod-1, the average weight of 100 green seeds 151.54 g. While the interaction F2D2V2 treatment was significantly excelled in most of the studied traits.