A Comparative Effect of Biochars with Different Quality, and Organic Manure on Plant Growth Rate in Beans Plant Cultivation

Balancing the need for increased food production and addressing environmental pollution associated with the use of inorganic fertilizers require sustainable farming practices. These practices include the use of eco-friendly soil enhancers such as biochar for agricultural purposes. In line with this, the study tends to compare the effect of biochars with different quality, and organic manure on the growth rate of cultivated beans plant. To assess the effect of the quality of different biochars on the rate of plant growth, beans seeds were planted in a combination of 150 g of soil, different biochars, and dried poultry manure in a ratio of 10:0.5:0.5. Three other control groups were established consisting of 150 g of soil mixed with 15 g of each of the different biochar samples only, 150 g of soil and 15 g of poultry manure only, and 165 g of soil only. The results showed that the plant grown in the soil in combination with biochar sample A (prepared at 350 °C and 40 min) and chicken manure, grew faster in height than the plants cultivated with other biochar samples and chicken manure. Also, the plant grown in the combination of soil, sample A and organic manure performed better in height by 35% compared to the plant in sample A and chicken manure alone and the beans planted in soil and biochar sample A alone. Hence, biochar produced at 350 °C and 40 min can act as an excellent improver in plant growth rate when used solely or in combination with other organic manure.