Agricultural waste is a type of solid waste that needs to be managed properly. Organic waste can be recycled to produce bokashi fertilizer, which can be used to improve soil health, increase crop production, and sanitize the environment. However, it may contain heavy metals that could be toxic to plants and can pollute the environment if not properly decomposed. This study was designed to evaluate the fertilizer quality of six different bokashi fertilizer ratios (bfrs) over seven- and thirty-day maturation periods. The raw materials used include horse bedding waste (HBW), cow dung (CD), and paddy husk charcoal (PHC) in different ratios, treated with an effective microorganisms (EM₄) solution. All the nutrients studied (N, P, K, Mg, and Ca) were significantly affected by the bokashi fertilizer ratios (bfrs). The best bokashi fertilizer ratio was bokashi fertilizer ratio-6 (bfr6), but it was statistically similar to bokashi fertilizer ratio-5 (bfr5). Its N, P, K, Mg, and Ca contents were higher than the control (bfr1) by 133.9%, 225.5%, 196.4%, 105.0%, and 84.7%, respectively. Similarly, all these nutrients were significantly affected by time. N, P, K, and Mg increased by 21.2, 33.0%, 16.4%, and 28.8%, respectively, after 30 days of maturation, with a decrease in Ca only 2.4%, which was not significant A germination index (GI) of 90.1% was obtained using cabbage seeds. The heavy metals result and germination bioassay confirmed the safety and maturity of the bokashi fertilizer. In conclusion, the results revealed that good-quality bokashi fertilizer can be produced within 30 days. Bfrr5 and bfr6 are equally good candidates for producing good-quality bokashi fertilizer for effective crop growth.

The reliance on the use of organic fertilizers (OFs) to boost yields and quality of crops is on the increase all over the world. This guarantees not only food security, but also the production of heathy food especially where promising cultivars are used. Therefore, this field study was conducted during 2024 raining season at Federal University Gashua, Nigeria, to investigate the effect of different levels of poultry manure (PM) (0, 3, 6, and 9 t ha⁻¹) on two varieties of okra (NHAR 47-4 and Jawa local). The experiment was laid out in a Randomized Complete Block Design (RCBD) and replicated three times. The effect of variety on plant height was significant as Jawa local variety produced the tallest plants at 7 and 10 weeks after sowing (66.75 cm and 125.36 cm) compared to (50.71 cm and 73.83 cm) from NHAR 47-4 improved variety. However, NHAR 47-4 variety produced significantly longer fruits/pods and highest number of fruits/pods throughout the harvest periods, and highest total fresh fruit weight (694.3 g) per plant compared to 65.9 g from Jawa local. The interaction results also revealed that the highest number of fruits were obtained from NHAR 47-4 variety when 9 t ha-1 PM was added after the third harvest. Therefore, NHAR 47-4 variety performed better in some yield attributes than Jawa local variety especially with the addition of 9 t ha-1. Thus, 9 t ha-1 of PM is recommended, especially under the Sahel agro-ecological condition.