I need a release fertilizer for palms but need something that has very little to none of phosphorous

Please check out Yates Vegan Fertiliser which is a balanced plant food ideal for use on all indoor and outdoor plants, including natives. Approved by Vegan Australia, this special blend contains natural minerals as well as slow release and fast-acting fertilisers that gently feed your plants for up to 3 months. The NPK ratio is 10:1:5 See more here:

Hope this helps and happy gardening!