{"product_id":"british-minerals-pro-pk-13-14","title":"British Minerals Pro PK 13\/14 Flowering Booster","description":"\u003ch2\u003eA Concentrated 13\/14 Hit at the Peak of Flowering\u003c\/h2\u003e\u003cp\u003eBritish Minerals Pro PK 13\/14 is a \u003cstrong\u003ehigh-concentration phosphorus and potassium booster\u003c\/strong\u003e with an \u003cstrong\u003eNPK of 0-13-14\u003c\/strong\u003e - \u003cstrong\u003e13% phosphorus\u003c\/strong\u003e and \u003cstrong\u003e14% potassium\u003c\/strong\u003e, and no nitrogen at all. That is deliberate: nitrogen at the back end of bloom pushes leaf rather than flower, so it is left out entirely and the two elements that actually build fruit are supplied in quantity instead.\u003c\/p\u003e\u003cp\u003ePhosphorus drives \u003cstrong\u003emetabolism and energy transfer\u003c\/strong\u003e, which is what the plant needs more of than anything else once it is committed to fruiting. Potassium governs \u003cstrong\u003ewater and nutrient transport, plant rigidity and sugar production\u003c\/strong\u003e, so it determines both the quality and the structural integrity of what you harvest. Pro PK supplies both in great quantity, in a simple one-bottle addition that suits \u003cstrong\u003eany growing medium\u003c\/strong\u003e and drops into any existing feed programme.\u003c\/p\u003e\u003ch3\u003eKey Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNPK 0-13-14\u003c\/strong\u003e - a true PK booster with no nitrogen to push unwanted late leaf growth\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e13% phosphorus\u003c\/strong\u003e for higher metabolic rate and energy transfer through fruiting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e14% potassium\u003c\/strong\u003e for water transport, plant rigidity and sugar production\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh concentration\u003c\/strong\u003e - a modest 1.5ml per litre is all it takes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuits every medium\u003c\/strong\u003e - coco, soil, rockwool and all hydroponic systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimple to run\u003c\/strong\u003e alongside any base feed and any additive programme\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFlowers That Set Well and Then Stop Filling\u003c\/h3\u003e\u003cp\u003eMid flowering is the point at which demand for phosphorus and potassium outruns anything a balanced base feed is designed to deliver. When that happens the plant keeps the sites it has already set but stops adding weight to them, and no amount of extra base nutrient fixes it because the nitrogen that comes with it works against you. A dedicated PK at high concentration, introduced from mid bloom and held to the end, is what carries the crop through those final weeks.\u003c\/p\u003e\u003ch3\u003eHow to Use\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eShake well before use\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAll media and systems:\u003c\/strong\u003e \u003cstrong\u003e1.5ml per litre\u003c\/strong\u003e of water\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTiming:\u003c\/strong\u003e from \u003cstrong\u003emid flowering (week 7) through to the end of the flowering phase\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdd to the reservoir\u003c\/strong\u003e with your normal feed and mix thoroughly before use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck EC and pH after adding\u003c\/strong\u003e - a concentrated PK will move both\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStop at flush\u003c\/strong\u003e and finish on plain water\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDo not exceed the recommended rate\u003c\/strong\u003e - excess can create anaerobic conditions in the medium\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cdiv class=\"hcs-specs\"\u003e\u003cul\u003e\n\u003cli\u003eType: PK flowering booster\u003c\/li\u003e\n\u003cli\u003eNPK: 0-13-14\u003c\/li\u003e\n\u003cli\u003ePhosphorus: 13%\u003c\/li\u003e\n\u003cli\u003ePotassium: 14%\u003c\/li\u003e\n\u003cli\u003eNitrogen: none - deliberately excluded for late bloom\u003c\/li\u003e\n\u003cli\u003eDose rate: 1.5ml per litre of water\u003c\/li\u003e\n\u003cli\u003eTiming: mid flowering through to the end of the flowering phase\u003c\/li\u003e\n\u003cli\u003eSuitable for: all growing media and all systems\u003c\/li\u003e\n\u003cli\u003eManufactured in the United Kingdom\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e","brand":"British Minerals","offers":[{"title":"1L","offer_id":53505607237898,"sku":"BM-PPK-1L","price":19.9,"currency_code":"GBP","in_stock":true},{"title":"5L","offer_id":53505607270666,"sku":"BM-PPK-5L","price":59.9,"currency_code":"GBP","in_stock":true},{"title":"25L","offer_id":53505607303434,"sku":"BM-PPK-25L","price":219.9,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0748\/7127\/5786\/files\/PROPK__2.png?v=1786478587","url":"https:\/\/hydrocropshop.co.uk\/products\/british-minerals-pro-pk-13-14","provider":"Hydro Crop Shop","version":"1.0","type":"link"}