{"product_id":"orthosilicic-acid-osa-500ml-16oz","title":"Orthosilicic Acid (OSA) - 500ml 16oz","description":"\u003ch1 class=\"x1yc453h x1603h9y x1gtpwm6 x7amdea x1i21sxh xladpa3 x1iykcro xma8rkl x1fie51u xgyxj25 x1xobyvs x1fv8qjw x1a024ua x14l7nz5 x1pjt2rx x160d6zm xrxpjvj\" dir=\"ltr\"\u003eHighly Concentrated Orthosilicic Acid for Hydroponics\u003c\/h1\u003e\n\u003cp\u003eHydroland OSA is a specialised, highly concentrated hydroponic formulation containing \u003cstrong\u003estabilised Orthosilicic Acid (OSA)\u003c\/strong\u003e, providing \u003cstrong\u003eplant-available silicon in the form of monosilicic acid.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFormulated with a combination of bio-available silicon, essential nutrients, trace elements and complex biomolecules, Hydroland OSA is designed to complement your existing hydroponic nutrient program throughout all stages of plant growth.\u003c\/p\u003e\n\u003ch2\u003eBenefits of Plant-Available Silicon\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong class=\"x7amdea\"\u003eImprove nutrient uptake\u003c\/strong\u003e\u003cspan\u003e to support healthy growth and quality yields.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrengthen plant cell walls\u003c\/strong\u003e, helping improve resilience against fungal and insect attack.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncrease resistance to abiotic stress\u003c\/strong\u003e, supporting healthier growth under challenging environmental conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupport fruit quality\u003c\/strong\u003e, including appearance, colour, flavour and overall quality.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePromote stronger, more vigorous plants\u003c\/strong\u003e throughout the growing cycle.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplicant \u0026amp; Usage Directions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eSHAKE WELL BEFORE USE.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eHydroponic Application\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eApplication Rate: \u003c\/strong\u003e0.1 - 0.15 ml per Litre of Water (100 - 150ml per 100L)\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eIt is recommended to add OSA at all stages of plant growth.\u003c\/em\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eEnsure all measuring equipment is clean before use.\u003c\/li\u003e\n\u003cli\u003eSlowly add the required amount of OSA to the hydroponic nutrient tank while intermittently mixing.\u003c\/li\u003e\n\u003cli\u003eAllow the solution to \u003cstrong\u003erest for 15 minutes.\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eAdd your hydroponic nutrient to the solution and mix thoroughly.\u003c\/li\u003e\n\u003cli\u003eAllow the solution to rest for a further\u003cstrong\u003e 15 minutes.\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eTest the pH of the nutrient solution and adjust to \u003cstrong\u003epH 6.0 if required.\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003e\n\u003cstrong\u003eFoliar Application\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eApplication Rate:\u003c\/strong\u003e 3 - 4 ml per Litre of Water.\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eAdd the required dosage of OSA to the required volume of water in a clean container and mix thoroughly.\u003c\/li\u003e\n\u003cli\u003eTransfer the solution into a clean spray bottle or pressure sprayer.\u003c\/li\u003e\n\u003cli\u003eApply during the coolest parts of the day, preferably early morning or late evening, to minimise the risk of leaf scorching and excessive evaporation.\u003c\/li\u003e\n\u003cli\u003eSpray both the upper and lower surfaces of the leaves, paying particular attention to the undersides, for maximum absorption.\u003c\/li\u003e\n\u003cli\u003eApply evenly until the foliage is damp or lightly coated. Avoid excessive runoff, pooling or soaking.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2\u003eOrthosilicic Acid (OSA) vs Potassium Silicate\u003c\/h2\u003e\n\u003cp\u003eBoth Orthosilicic Acid and Potassium Silicate can be used as sources of silicon in hydroponic growing systems, but they have different characteristics.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePotassium Silicate \u003c\/strong\u003eis a cost-effective, soluble source of silicon that also supplies potassium. However, it is an alkaline solution and can cause significant changes to the pH of a hydroponic nutrient solution. This may require careful pH monitoring and adjustment using an appropriate acid, such as phosphoric acid.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOrthosilicic Acid (OSA)\u003c\/strong\u003e provides silicon in a plant-available form and generally has a much lower impact on nutrient-solution pH. This makes it a convenient option for growers looking to incorporate silicon into their hydroponic nutrient program while minimising significant pH fluctuations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote: \u003c\/strong\u003eAlthough OSA has minimal impact on pH, it is still best practice to measure the pH of your hydroponic nutrient solution after adding OSA and adjust as required for optimal growing conditions.\u003c\/p\u003e","brand":"HydroLand","offers":[{"title":"Default Title","offer_id":52605504192802,"sku":"KL56120","price":39.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0691\/0872\/8098\/files\/KL56120-OrthosilicicAcid_OSA_-500ml-02.webp?v=1790642387","url":"https:\/\/hydroland.com.au\/products\/orthosilicic-acid-osa-500ml-16oz","provider":"HydroLand","version":"1.0","type":"link"}