Gypsum is a slow-release source of sulphur and calcium which play a key role in improving soil structure, aeration and water retention. So you can grow better, healthier crops.
N–P–K 15 – 1.3 – 16.6 + Mg & trace elements.
N–P–K 12 – 5.2 – 14 + S, Mg
Do your plants a good deed this season and give them a well deserved feed of New Zealand’s most widely used compound fertiliser.