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.
Can Limiting Ventilation Solve Heat Stress in Greenhouses?
Opening the vents isn’t always the answer to greenhouse heat stress. Why limiting ventilation can keep crop VPD healthy above 30°C — and the crop-centric data that makes it safe.
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…
Does Your Crop Need More Light or More Temperature? Understanding RTR
“Does my crop need more light or more temperature?” “It depends.” A very unsatisfactory answer to many questions in greenhouse horticulture — and yet probably one of the most accurate ones. There is hardly ever a single, clear response; it almost always depends on the crop, the variety, the growth stage, the time of year,…
Less Mycos in LED Cucumber: Why Stimulating Transpiration Takes a Different Kind of Control
A new field report from Delfgauw confirms what leaf-level sensor data has been hinting at for years: Mycosphaerella in LED cucumber is, at its core, a transpiration problem. The shift from HPS to LED changes the transpiration equation, and the control strategies that worked under 85 µmol don’t translate to 200 µmol. Dutch horticulture title Groentennieuws published…
Suboptimal crop activity: a hidden risk in high-wire cultivation
Learn why greenhouse climate stability is critical for plant growth and how to reduce fluctuations using data-driven strategies.
How uniform is your greenhouse climate
Learn why greenhouse climate uniformity is critical for plant growth, yield, and disease prevention, and how to improve it using data and sensors.
Spring is a favorite season in horticulture
Spring is a key season in greenhouse cultivation. Learn how to manage plant growth, VPD, and climate changes for optimal performance.
