NPK 15 15 15 VIETNAM REVIEW FUNDAMENTALS EXPLAINED

● According to unique soil,for example,fertilizer containing potassium sulfate will not be suitable for paddy area and acid soil,fertilizer containing ammonium ion isn't appropriate for alkali soil,and so on.You may use fertilizer in your vegetable back garden. On the other hand, as a first step, I generally advise applying compost and manure to