Conducted by NwSSU
Completed on 2018
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Biochar created from poultry litter is a way to produce a value- added soil amendment that is lighter and less expensive to transport out of manure nutrient excess areas but its effects on nutiient availability are less known. A pot experiment was conducted: 1) To evaluate the phosphotus availability and growth performance of corn applied with poult1Y litter char grown in degraded soil. 2) To determine the optimum rate of poultry litter char as amendment for corn in degraded soil. There were four treatments with four rates of PLC application (T1-0g kg-1soil; T2-200g kg-1 soil, T3-400g kg-1 soil and T4-60g PLC kg-1 soil). Each treatment was replicated four times and arranged in Randomized Complete Block Design (RCBD). Corn plants were used as test crop for nutrient availability. Planting was done after 10 days of incubation of soil and poultry litter char mixture for reaction. Plants were harvested 30 days after planting for soil and tissue analysis. Results revealed that addition of poultry litter char enhances phosphorus availability and better growth performance. Generally, addition of increasing rates (20-60g kg-1 soil) of PLC resulted in consistent increase on weekly plant height, pHH20, %OC, and extractable P of soil after
harvest. On the other hand, similar increasing trend was observed in the soil extractable P within 10 days of incubation before planting. Tissue P concentration and dry matter yield were increased after addition of increasing rates of PLC. However, there were no significant differences observed between the rates of PLC.