Effect of zinc and boron spraying on yield and yield components of two spring lentil cultivars in Kermanshah climatic condition

A field experiment was conducted to investigate the effect of zinc and boron spraying on yield and yield components of two spring lentil cultivars in Kermanshah, Iran in a factorial experiment based on randomized complete block design. The first factor consisted of Bilehsavar and Kimia cultivars. The second factor was spraying in four levels consisting of non-spraying, spraying with zinc sulfate at 1.5 o/oo, and boric acid 3 o/oo separated or in combination. The effects of spraying on the all studied traits were significant but except for hundred seed weight and harvest index. Bilehsavar had higher yield than Kimia cultivar. Zinc sulfate spraying also increased seed yield, biomass yield, and harvest index. Boron spraying increased the grain yield and harvest index, while combination of zinc sulfate and boric acid spraying increased number of pods per plant, number of seeds per pod, and plant height in Bilehsvar cultivar. Also, the results of this study were useful in the effect of leaf spraying with micronutrient fertilizers on zinc and boron, which was the most affected by the application of zinc sulfate and boric acid in conjunction with increasing number of pods per plant and number of seeds per pod. Therefore, planting of Bilesavar cultivar and its spraying with both ZN and B fertilizers is recommended in Kermanshah climate condition. A field experiment was conducted to investigate the effect of zinc and boron spraying on yield and yield components of two spring lentil cultivars in Kermanshah, Iran in a factorial experiment based on randomized complete block design. The first factor consisted of Bilehsavar and Kimia cultivars. The second factor was spraying in four levels consisting of non-spraying, spraying with zinc sulfate at 1.5 o/oo, and boric acid 3 o/oo separated or in combination. The effects of spraying on the all studied traits were significant but except for hundred seed weight and harvest index. Bilehsavar had higher yield than Kimia cultivar. Zinc sulfate spraying also increased seed yield, biomass yield, and harvest index. Boron spraying increased the grain yield and harvest index, while combination of zinc sulfate and boric acid spraying increased number of pods per plant, number of seeds per pod, and plant height in Bilehsvar cultivar. Also, the results of this study were useful in the effect of leaf spraying with micronutrient fertilizers on zinc and boron, which was the most affected by the application of zinc sulfate and boric acid in conjunction with increasing number of pods per plant and number of seeds per pod. Therefore, planting of Bilesavar cultivar and its spraying with both ZN and B fertilizers is recommended in Kermanshah climate condition.