Effect of biochar and irrigation levels on faba bean productivity
Biochar, due to its porous structure and high surface area, has been suggested as an agricultural soil amendment in order to preserve more water, and increase water use efficiency. A greenhouse experiment was conducted to evaluate the effect of different irrigation and biochar levels on faba bean (Vicia faba L.) growth and yield production. The experiment was performed with 5 biochar levels (0, 25, 50, 75 and 100 t ha-1) and 3 irrigation levels (100, 75 and 50% of water requirement) using completely randomized design in three replications. Results showed that the use of biochar at the level of 25 t ha-1 increased number of flowers and pods and dry weight of grain by 12, 92 and 94% compared to control (no biochar application), respectively. On the other hand, drought stress at 50% of water requirement significantly declined number of flowers and pods and dry weight of grain by 53, 25, 43% compared to control (full irrigation), respectively. In conclusion, application of biochar to a certain level (25 t ha-1) is suggested as a suitable way to decrease water consumption and increase crop performance.
Poormansour, S. and Razzaghi, F. (2018). Effect of biochar and irrigation levels on faba bean productivity. Acta Hortic. 1190, 157-162
biochar, deficit irrigation, faba bean