The aim of this investigation is to study the effect of adding biochar, Azolla combined with acid producing bacteria and plant growth promoting Rhizobacteria (PGPR) on the chemical and physical properties of the tree residues compost during aerobic decomposition. Five composting heaps were carry out in this study as follows; 1-control (T0), 2-heap supplied with bio char (T1), 3-heap supplied with Azolla (T2), 4-heap supplied with mixture of bacterial cultures (Bacillus megatherium, Azospirillum lipoferum, Azotobacter chroococcum) (T3) and 5-heap supplied with biochar, Azolla plus mixture of bacterial cultures (T4). All compost heaps showed an rising in temperature after start of the composting reached to the highest peak values of 56, 60.2, 61, 58.7, and 67.6 °C in day 10 for T0, T1, T2, T3 and T4, respectively. Gradual decreasing of the organic matter, organic carbon and C/N ratio with increase of composting period process, on the other hand, progressive increases in % Ash, Total N, available P, total K, pH and EC with increasing of composting period process. Compost supplied with biochar, Azolla and mixed bacterial cultures (T4); recorded higher values of N, P and K contents compared to other treatments. These results indicated that, adding biochar, Azolla and bacterial cultures to trees residues during composting improve properties and nutritional value of the produced compost.
Three pot experiments were conducted during three successive seasons to study the effects of Banana trees residues biochar at a level of 0 , 0.5, 1, 2 and 5% on the soil properties, N, P, and K availability as well as, growth, nutrient uptake of different crop plants under this study The results showed that, additions of banana waste biochar to the soil led to an increase in the organic matter content, pH , EC , total nitrogen, available phosphorus, and available potassium in the soil. On the other hand, it led to a decrease in the percentage of the total calcium carbonate in the soil. These effects increase with increasing the rate of biochar added to the soil. In addition, the use of banana waste biochar at low rates (0.5 and 1%) led to an increase in the plant height, root length, dry matter yield of plants and N, P and K uptake by plants compared to other treatments. On the other hand, application of banana biochar at rates 2 and 5% gave significant decreased in the height of plants, root length, dry matter yield and N, P and K uptake by plants compared to other treatments. These results show that, additional research is required to determine the shortand long-term effects of adding banana waste biochar treatments on the characteristics of the soil and available nutrients as well as plant growth and nutrients uptake under field conditions and extensive trials.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.