Sri Lanka company import request Urea

urea fertilizer urea 46 urea granule urea powder nitrogen content nitrogen source plant nutrient soil amendment nitrogen fertilizer phosphorus fertilizer potassium fertilizer npk fertilizer organic fertilizer inorganic fertilizer agricultural fertilizer crop fertilizer plant fertilizer soil fertilizer garden fertilizer lawn fertilizer liquid fertilizer granular fertilizer micronutrient fertilizer macro fertilizer balanced fertilizer synthetic fertilizer natural fertilizer compost fertilizer slow release fertilizer fast release fertilizer