{"title":"Sulphur","description":"\u003cp\u003eSulphur is a building block of plant proteins and enzymes and supports chlorophyll production. A shortage shows as even paling of the newest upper leaves, which is how it differs from nitrogen deficiency — that starts on the older growth lower down.\u003c\/p\u003e","products":[{"product_id":"seabird-guano-high-n-cal","title":"Seabird Guano (High N\/Cal)","description":"\u003cp\u003ePeruvian Seabird Guano is one of the most potent natural nitrogen sources available — rivalling blood meal at 14.6% nitrogen, but in a mineralised form that's entirely unique due to the age and composition of this decades-old Peruvian deposit. We're big fans of this ingredient and use it across our soil blends and fertilisers, so we've secured enough supply to offer it as a standalone raw amendment as well.\u003c\/p\u003e\n\u003cp\u003eIn contrast to our High P\/Si Seabird Guano, this Peruvian source packs a serious nitrogen kick alongside balanced phosphorus and potassium, substantial calcium, and a broad spectrum of trace minerals including iron, zinc, manganese, boron, copper, cobalt, and molybdenum. It also provides chitin, delivering the same SAR-triggering immune benefits found in other chitin-bearing amendments. The result is an exceptionally versatile, mineral-dense soil food that corrects deficiencies, improves soil structure and drainage, and lifts overall plant health and productivity.\u003c\/p\u003e","brand":"Soil Supply Co.","offers":[{"title":"500g","offer_id":48918019866864,"sku":"SEAGUANO-NCAL-500G","price":9.0,"currency_code":"AUD","in_stock":true},{"title":"1kg","offer_id":48918019899632,"sku":"SEAGUANO-NCAL-1KG","price":16.0,"currency_code":"AUD","in_stock":true},{"title":"2.5kg","offer_id":48918019932400,"sku":"SEAGUANO-NCAL-2.5KG","price":38.0,"currency_code":"AUD","in_stock":true},{"title":"5kg","offer_id":48918019965168,"sku":"SEAGUANO-NCAL-5KG","price":76.0,"currency_code":"AUD","in_stock":true},{"title":"15kg","offer_id":50203551629552,"sku":"SEAGUANO-NCAL-15KG","price":169.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0823\/1262\/6416\/files\/seabird-guano-high-ncal-398240.jpg?v=1772156823"},{"product_id":"langbeinite","title":"Langbeinite","description":"\u003cp\u003eLangbeinite is a natural, three-in-one mineral fertiliser providing potassium, magnesium, and sulphur from a single source. Derived from a specific ancient lake bed deposit millions of years old, langbeinite exists naturally in this form — it is not liberated from rock through chemical means like many forms of potassium sulphate, making it a cleaner, more natural input for soil building.\u003c\/p\u003e\n\u003cp\u003eWith 21% potassium, 18% sulphur, and 7% magnesium, langbeinite covers three essential elements that plants demand heavily during flowering and fruit development. Potassium drives flower size and frost hardiness, magnesium supports enzymatic processes and chlorophyll production, and sulphur underpins enzyme functioning and protein synthesis. The benefits extend to improved disease and pest resistance, stronger root development, increased yields, and better taste and quality in fruits and vegetables.\u003c\/p\u003e\n\u003cp\u003eBecause it supplies potassium and magnesium together in complementary ratios — unlike potash, which delivers potassium alone, is synthetically liberated, and can imbalance soil — it feeds heavy flowering demand for Potassium while also providing ample Magnesium as a catalyst nutrient for plant metabolic function.\u003c\/p\u003e","brand":"Soil Supply Co.","offers":[{"title":"500g","offer_id":48918020260080,"sku":"LANG-500G","price":8.0,"currency_code":"AUD","in_stock":true},{"title":"1kg","offer_id":48918020292848,"sku":"LANG-1KG","price":14.0,"currency_code":"AUD","in_stock":true},{"title":"2.5kg","offer_id":48918020325616,"sku":"LANG-2.5KG","price":25.0,"currency_code":"AUD","in_stock":true},{"title":"5kg","offer_id":48918020358384,"sku":"LANG-5KG","price":45.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0823\/1262\/6416\/files\/langbeinite-granule-202406.jpg?v=1772156521"},{"product_id":"azomite","title":"Azomite","description":"\u003cp\u003eAzomite is a genuine, bonafide calcium-aluminosilicate rock mineral mined from a single unique deposit in Utah — the only source of its kind in the world. Widely used and highly regarded, it contains a full spectrum of trace minerals from A to Z, in a combination not found in any other deposit globally. The Azomite we stock is highly micronised, making it quickly bioavailable to plants and soil biology alike.\u003c\/p\u003e\n\u003cp\u003eThe mineral profile includes boron, calcium, chlorine, cobalt, copper, iron, magnesium, molybdenum, phosphorus, potassium, silicon, sodium, sulphur, and zinc — all of importance in growing strong, healthy, high-yielding plants. We use Azomite in our mixes alongside other rock mineral inputs such as palagonite and volcanic ash, finding that the extra coverage it delivers really rounds out a soil and covers bases that single-mineral amendments can't. Anecdotally, many keen users report increases in quality, and we've personally found it seems to wake up microbes and get them active fast.\u003c\/p\u003e","brand":"Soil Supply Co.","offers":[{"title":"500g","offer_id":48918021538032,"sku":"AZOMITE-500G","price":8.0,"currency_code":"AUD","in_stock":true},{"title":"1kg","offer_id":48918021570800,"sku":"AZOMITE-1KG","price":15.0,"currency_code":"AUD","in_stock":true},{"title":"2.5kg","offer_id":48918021603568,"sku":"AZOMITE-2.5KG","price":32.5,"currency_code":"AUD","in_stock":true},{"title":"5kg","offer_id":48918021636336,"sku":"AZOMITE-5KG","price":60.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0823\/1262\/6416\/files\/azomite.png?v=1782526524"},{"product_id":"gypsum","title":"Gypsum","description":"\u003cp\u003eGypsum (Calcium Sulphate) is a high-purity, pH-neutral source of calcium and sulphur — essential for situations where you need to top up calcium without shifting your soil's pH. If anything, it carries a very mild acidifying quality, making it a smart choice for mid-season amendments, coco-based mixes, or any blend that isn't inherently acidic and doesn't need further alkalinity.\u003c\/p\u003e\n\u003cp\u003eProviding approximately 20% calcium and 16% sulphur, gypsum supports strong cell wall development and enzyme function across all growth stages. It's particularly well suited to acidic-soil-loving plants that still need adequate calcium supply — a combination that's hard to achieve with liming agents.\u003c\/p\u003e\n\u003cp\u003eWe stock white, graded gypsum with an approximate maximum particle size of 2–3 mm, with the majority being fine powder. Not all gypsum is equal — cheap sources are often recycled from gyprock particle board or pulled from low-quality mines where seam wall material ends up mixed with the extract. Both are inferior due to potential contamination and reduced purity.\u003c\/p\u003e","brand":"Soil Supply Co.","offers":[{"title":"500g","offer_id":48918022619376,"sku":"GYPSUM-500G","price":6.5,"currency_code":"AUD","in_stock":false},{"title":"1kg","offer_id":48918022652144,"sku":"GYPSUM-1KG","price":10.0,"currency_code":"AUD","in_stock":false},{"title":"2.5kg","offer_id":48918022684912,"sku":"GYPSUM-2.5KG","price":22.0,"currency_code":"AUD","in_stock":false},{"title":"5kg","offer_id":48918022717680,"sku":"GYPSUM-5KG","price":38.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0823\/1262\/6416\/files\/gypsum.png?v=1782530376"},{"product_id":"hemp-seed-meal","title":"Hemp Seed Meal","description":"\u003cp\u003eHemp Seed Meal is a protein-rich, plant-derived nitrogen amendment left over after cold-pressing hemp seed for oil. It carries a gentle NPK of 5-1.5-1 alongside a broad spread of secondary and trace minerals — magnesium, calcium, sulfur, iron and zinc among them — making it a complete, vegan feed for the vegetative phase. Because that nitrogen is held in protein rather than mineral salts, it releases slowly as soil microbes break it down, feeding plants steadily over weeks with none of the burn risk of synthetic nitrogen.\u003c\/p\u003e\n\u003cp\u003eBeyond feeding the plant, hemp seed meal feeds the soil. The fatty acids left behind after pressing make it an especially rich food source for microbes and fungi — a slow-burning energy input that keeps the soil food web active. It's a favourite of earthworms and a solid carbon-and-nitrogen source too, and it's been observed to hold back some pathogenic soil microbes as the biology shifts in its favour. That makes it well suited to living-soil and no-till systems — building a fresh mix, top-dressing an established bed, or recharging used soil between cycles.\u003c\/p\u003e","brand":"Soil Supply Co.","offers":[{"title":"500g","offer_id":49977990807792,"sku":"HEMP-500G","price":12.0,"currency_code":"AUD","in_stock":true},{"title":"1kg","offer_id":49977990840560,"sku":"HEMP-1KG","price":22.0,"currency_code":"AUD","in_stock":false},{"title":"2.5kg","offer_id":49977990873328,"sku":"HEMP-2.5KG","price":38.0,"currency_code":"AUD","in_stock":false},{"title":"5kg","offer_id":49977990906096,"sku":"HEMP-5KG","price":69.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0823\/1262\/6416\/files\/hempseedmeal.png?v=1783316982"},{"product_id":"mustard-seed-meal","title":"Mustard Seed Meal","description":"\u003cp\u003eMustard Seed Meal is the defatted meal left after pressing oil from mustard seed (Brassica and Sinapis species), and it works on two fronts. As it breaks down in moist soil, naturally occurring glucosinolates are hydrolysed into isothiocyanates — the same pungent compounds behind mustard's bite — which act as a natural biofumigant, suppressing plant-parasitic nematodes and soilborne fungi without synthetic chemicals. At the same time it's a high-protein, nitrogen-rich meal that feeds the following crop as it mineralises.\u003c\/p\u003e\n\u003cp\u003eThis makes mustard seed meal a genuine dual-purpose input: a pre-plant soil cleanse and a nitrogen feed in one. It suits growers managing disease or nematode pressure in beds, no-till plots or reused living soil, and slots neatly into a reset between cycles. Because its biofumigant action doesn't discriminate between good and bad, it's worked into bare soil ahead of planting rather than around living roots.\u003c\/p\u003e","brand":"Soil Supply Co.","offers":[{"title":"500g","offer_id":49978005651696,"sku":"MUSTARD-500G","price":6.0,"currency_code":"AUD","in_stock":true},{"title":"1kg","offer_id":49978005684464,"sku":"MUSTARD-1KG","price":10.0,"currency_code":"AUD","in_stock":false},{"title":"2.5kg","offer_id":49978005717232,"sku":"MUSTARD-2.5KG","price":22.0,"currency_code":"AUD","in_stock":false},{"title":"5kg","offer_id":49978005750000,"sku":"MUSTARD-5KG","price":38.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0823\/1262\/6416\/files\/mustardseedmeal.png?v=1783317038"}],"url":"https:\/\/soilsupply.co\/collections\/sulphur.oembed","provider":"Soil Supply Co.","version":"1.0","type":"link"}