The present study focused on the utilization of solid wastes viz. wet blue leather of leather industry, rice husk ash from rice mills, and water hyacinth in addition to a commercial steamed bone meal for the invention of nutrient-enriched organic fertilizer. To produce NPK organic fertilizer, chromium-free wet blue leather (WBL) as nitrogen source was amalgamated with rice husk ash, water hyacinth, and commercial steamed bone meal as a potassium and phosphorus source. The efficiency of such developed organic fertilizer designated as type I was tested as a nutrients source on the marigold plant. Ammonia analysis of fertilizer applied soil samples revealed that the content of liberated free ammonia in the soil fertilized with organic fertilizer was 44.80 %, 20.70 %, and 10.35% higher than the natural soil, chemically fertilized soil and fertilized with vermicompost respectively. Application of developed organic fertilizer and vermicompost designated as type II on marigold plant resulted in significant growth which are comparable to those obtained with commercial Chemical fertilizer. The plant growth increased by chemical fertilizer, Type I fertilizer, and Type II fertilizer in terms of plant height 26.5 %, 20 %, 22.7% and leaf size 21.2 %, 15.4 %, 17.3 % respectively which are observed to be higher than the growth of the control plant. KeywordsWet blue leather, Rice husk ash, Organic fertilizer, Vermicompost, Plant growth.

中文翻译：

---

从工农业废料中开发和配制有机肥料以研究万寿菊（万寿菊）植物的生长

本研究集中于固体废物的利用，即。皮革工业的湿蓝色皮革，碾米厂的稻壳灰和风信子，以及用于发明营养丰富的有机肥料的商业蒸骨粉。为了生产NPK有机肥料，将无铬蓝湿皮（WBL）作为氮源与稻壳灰，水葫芦和商业蒸骨粉作为钾和磷源进行混合。测试了这种开发为I型有机肥料作为万寿菊植物养分来源的效率。施肥土壤样品的氨气分析表明，有机肥施肥的土壤中游离的游离氨含量分别比天然土壤高44.80％，20.70％和10.35％，化学肥料和ver肥料。在万寿菊植物上施用发达的有机肥料和指定为II型的ver堆肥，可显着增长，可与商业化肥获得的相当。化学肥料，I型肥料和II型肥料的植物生长分别以株高26.5％，20％，22.7％和叶尺寸21.2％，15.4％，17.3％增长，高于生长。控制工厂。关键词湿蓝色皮革稻壳灰有机肥料mi粉植物生长 在万寿菊植物上施用发达的有机肥料和指定为II型的ver堆肥，可显着增长，可与商业化肥获得的相当。化学肥料，I型肥料和II型肥料的植物生长分别以株高26.5％，20％，22.7％和叶尺寸21.2％，15.4％，17.3％增长，高于生长。控制工厂。关键词湿蓝色皮革稻壳灰有机肥料mi粉植物生长 在万寿菊植物上施用发达的有机肥料和指定为II型的ver堆肥，可显着增长，可与商业化肥获得的相当。化学肥料，I型肥料和II型肥料的植物生长分别以株高26.5％，20％，22.7％和叶尺寸21.2％，15.4％，17.3％增长，高于生长。控制工厂。关键词湿蓝色皮革稻壳灰有机肥料mi粉植物生长