{"product_id":"atami-pk-13-14","title":"Atami PK 13-14","description":"\u003ch2\u003eA concentrated phosphorus-potassium boost for the flowering stage\u003c\/h2\u003e\u003cp\u003ePK 13-14 is a high-strength phosphorus and potassium additive dosed during the mid-to-late flowering stage, when a plant's demand for these two elements rises sharply as it builds flower and fruit mass. The 13-14 in the name refers to the ratio of P2O5 to K2O in the formula, giving growers a concentrated top-up of exactly the two nutrients flowering plants pull hardest on, on top of whatever base feed and bloom booster is already running.\u003c\/p\u003e\u003cp\u003eIt is designed to be introduced partway through flower, typically once flower sites are well established, and run for a defined window rather than for the whole bloom period — overusing a PK booster or running it too early can push EC too high or crowd out other nutrients the plant still needs. Used correctly across the final weeks of flower in soil, coco or hydro, it is aimed at growers looking to build denser, heavier flower sites before the plant moves into its final ripening and flush stage.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-strength P-K formula\u003c\/strong\u003e targeted at flowering-stage demand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoosts flower and fruit set\u003c\/strong\u003e during the mid-to-late bloom window\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUsed alongside a base feed\u003c\/strong\u003e, not as a replacement for it\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuits soil, coco and hydro\u003c\/strong\u003e systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplied for a defined window\u003c\/strong\u003e rather than continuously through bloom\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv class=\"hcs-specs\"\u003e\u003cul\u003e\n\u003cli\u003eFormula: P2O5 13% \/ K2O 14% (PK 13-14 ratio)\u003c\/li\u003e\n\u003cli\u003eUse stage: mid-to-late flowering\u003c\/li\u003e\n\u003cli\u003eTypical dose: 1-2ml per litre, twice weekly for 2-3 weeks (confirm against product label)\u003c\/li\u003e\n\u003cli\u003eCompatibility: soil, coco, hydro\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e\u003cdiv class=\"hcs-dosing\" style=\"margin:32px 0 0;border:1px solid #e6e6e6;border-radius:12px;overflow:hidden;font-family:Montserrat,-apple-system,'Segoe UI',sans-serif;\"\u003e\n\u003cdiv style=\"background:#101010;padding:16px 20px;border-bottom:3px solid #efc04c;\"\u003e\n\u003cdiv style=\"color:#ffffff;font-size:17px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;\"\u003eFeed Chart\u003c\/div\u003e\n\u003cdiv style=\"margin-top:6px;color:#b8b8b8;font-size:12px;line-height:1.5;\"\u003eAtami PK 13-14 · soil, coco and hydro\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;color:#2b2b2b;background:#fff;\"\u003e\n\u003ctr style=\"background:#f4f4f4;\"\u003e\n\u003cth style=\"text-align:left;padding:10px 20px;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:#6b6b6b;font-weight:600;\"\u003eStage\u003c\/th\u003e\n\u003cth style=\"text-align:right;padding:10px 14px;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:#6b6b6b;font-weight:600;white-space:nowrap;\"\u003ePer 1 L\u003c\/th\u003e\n\u003cth style=\"text-align:right;padding:10px 20px;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:#6b6b6b;font-weight:600;white-space:nowrap;\"\u003ePer 10 L\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px 20px;border-top:1px solid #ededed;\"\u003eMid-to-late flowering, twice weekly for 2 to 3 weeks\u003c\/td\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #ededed;text-align:right;white-space:nowrap;font-weight:600;\"\u003e1–2 ml\u003c\/td\u003e\n\u003ctd style=\"padding:12px 20px;border-top:1px solid #ededed;text-align:right;white-space:nowrap;color:#6b6b6b;\"\u003e10–20 ml\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"background:#101010;padding:12px 20px;font-size:12px;color:#b8b8b8;line-height:1.6;\"\u003e\n\u003cspan style=\"color:#efc04c;font-weight:600;\"\u003eNote\u003c\/span\u003e — Confirm the rate against the bottle label before mixing. Used alongside a base feed for a defined window, not continuously through bloom — running it too early or too long pushes EC up and crowds out other nutrients. Do not stack it with another PK product. Check pH and EC after mixing.\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Atami","offers":[{"title":"1L","offer_id":53500712157450,"sku":"ATAMI-PK1314-1L","price":7.9,"currency_code":"GBP","in_stock":true},{"title":"5L","offer_id":53500712190218,"sku":"ATAMI-PK1314-5L","price":38.8,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0748\/7127\/5786\/files\/c8f2b6549f0bb43a27f73ae0425a1ba123f5e065.jpg?v=1786377506","url":"https:\/\/hydrocropshop.co.uk\/products\/atami-pk-13-14","provider":"Hydro Crop Shop","version":"1.0","type":"link"}