Njoku C. C. Application of Rice Husk Waste and Npk Fertilizer on a degraded Acid Sand in Anambra area, Southeastern Nigeria Effect on the Chemical and Nutritional Composition of Maize (Zea Mays) Grown on it: Application of Rice Husk Waste and Npk Fertilizer on a degraded Acid Sand in Anambra area, Southeastern Nigeria Effect on the Chemical and Nutritional Composition of Maize (Zea Mays) Grown on it. AEXTJ [Internet]. 2017 Nov. 9 [cited 2024 Jul. 3];1(5). Available from: https://aextj.com/index.php/aextj/article/view/33