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Variation of faba bean's leaf area index (cm 2 cm -2 ) for different levels of biochar (B) and irrigation (I) during growth period (days after sowing (DAS)). (a) Irrigation level of 100% crop water requirement (I 100% ), (b) irrigation level of 75% crop water requirement (I 75% ), (c) irrigation level of 50% crop water requirement (I 50% ). Bars indicate standard error of the mean.

Variation of faba bean's leaf area index (cm 2 cm -2 ) for different levels of biochar (B) and irrigation (I) during growth period (days after sowing (DAS)). (a) Irrigation level of 100% crop water requirement (I 100% ), (b) irrigation level of 75% crop water requirement (I 75% ), (c) irrigation level of 50% crop water requirement (I 50% ). Bars indicate standard error of the mean.

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Effect of four levels of biochar (0, 25, 50 and 75 ton ha-1) produced from wheat straw and three levels of irrigation (100, 75 and 50 % of crop water requirement) on growth and yield of faba bean was determined in completely randomized design in the greenhouse. The result showed that after faba bean reached maturity, the maximum plant height and le...

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