VPD in the Greenhouse: What It Is and How to Steer It
VPD drives how hard your crop transpires, how stomata open, and how calcium moves. Here are the right ranges, the risks outside them, and how to measure VPD continuously at crop level with Pixel.
Blossom End Rot in Tomatoes: It’s a Transpiration Problem
A tomato grower called with a familiar problem: blossom end rot, no obvious stress, irrigation looking fine, calcium levels good. The answer was not in his irrigation schedule. It was in what happened days earlier, on a cold, clear spring night. Calcium moves through transpiration — and only through transpiration The day before had been…
