What nutrients should I prioritize for my indoor foliage plants in hydroponics?
I'm currently growing several indoor foliage plants using a hydroponic setup in my apartment, which has a steady temperature of around 70°F (21°C). My system is a nutrient film technique (NFT), and I'm using a mix of leafy greens and decorative foliage plants. I've been monitoring the pH and EC levels closely, but I’m unsure about the specific nutrient ratios to optimize their growth. I've primarily used a standard hydroponic nutrient solution, but I've noticed some leaf yellowing on a few of my plants. I suspect it could be a nutrient deficiency, but I'm not sure which one. I've already tried adjusting the nutrient concentration slightly, but the issue persists. Given my background in engineering, I’m keen on understanding the technical aspects of plant nutrition rather than just following guidelines. Can anyone help me with the specific nutrient requirements for indoor foliage plants in a hydroponic setup? What ratios should I be looking for, and are there any specific symptoms I should be on the lookout for to identify deficiencies? Your insights would be greatly appreciated!