nawóz npk 20-20-20 Secrets
افزایش استحکام دیواره سلولی و در پی آن استحکام شاخ و برگ و میوه گیاهانUltimately, it is crucial to check the expiration day about the fertilizer in advance of employing it. In case the expiration day has passed, the fertilizer should be disposed of adequately.Now we know the amount of mg/L of