INTEGRATED EFFECTS OF VERMICOMPOST, NPK FERTILIZERS, CADMIUM, AND LEAD ON THE GROWTH, YIELD AND MINERAL NUTRIENT ACCUMULATION IN SPINACH (Spinacia oleracia L.) (J. biodivers. conserv. bioresour. manag.)
In this work, we used different amounts of fertilizer, including phosphorus, potassium, and vermicompost. Then, we assessed the spinach's physical development in several replications. Finally, we examined the plant's roots, stems, and leaves to determine the elements—nitrogen, potassium, phosphorus, and others—after they had been harvested.