{ "item_title" : "The Hydroponic Nutrient Management Guide", "item_author" : [" Mina A. Escalon "], "item_description" : "Are your hydroponic plants struggling with yellow leaves, crispy tips, or sudden pH crashes, even when you followed the fertilizer bottle's instructions perfectly?You aren't doing anything wrong; you've just hit the biggest blind spot in home growing. Unlike soil, which naturally buffers mistakes, a hydroponic system delivers nutrients directly to the roots, meaning every tiny error is felt immediately. Most guides teach you how to plug in a light and build a reservoir, but they leave you completely in the dark on the actual science of water chemistry. If you don't know exactly what is in your source water before adding a single drop of fertilizer, your nutrient program is already working against you.The Hydroponic Nutrient Management Guide eliminates the guesswork by translating commercial greenhouse precision into a simple, foolproof system for everyday home growers.Inside, you will finally discover: The Source Water Secret: How to test your water for alkalinity, hardness, and baseline EC so you start with a perfect foundation.The End of pH Panic: The real reasons your pH drifts overnight and how to correct it safely without endlessly chasing the numbers.Flawless Fertilizer Mixing: The exact mixing order that prevents two-part fertilizers from reacting and permanently locking out calcium.Crop-Specific Feeding: How to build custom, stage-by-stage schedules that adapt as your fast-growing greens or heavy-fruiting tomatoes mature.The Diagnostic Method: A foolproof system to instantly tell the difference between nutrient burn, genuine starvation, and a pH lockout.Harvest Safety: Essential food safety basics, including exactly how and when to flush your system for the cleanest, safest produce.Stop treating mysterious symptoms and start managing a healthy, high-yielding system.Scroll up and click Buy Now to take total control of your harvest today!", "item_img_path" : "https://covers4.booksamillion.com/covers/bam/9/79/816/073/9798160731407_b.jpg", "price_data" : { "retail_price" : "22.99", "online_price" : "22.99", "our_price" : "22.99", "club_price" : "22.99", "savings_pct" : "0", "savings_amt" : "0.00", "club_savings_pct" : "0", "club_savings_amt" : "0.00", "discount_pct" : "10", "store_price" : "" } }

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