3. Hara Makro

3.1. Pengertian hara esensial

3.2. Pengertian hara makro

3.3. Nitrogen (N)

3.4. Fosfor (P)

3.5. Kalium (K)

3.6. Kalsium (Ca)

3.7. Magnesium (Mg)

3.8. Sulfur (S)