Watching Potatoes Grow Underground: What New Field Research Reveals

Conceptual soil cutaway showing potatoes beneath a green potato plant, with irrigated fields and dry Washington hills behind it.

A potato field can look healthy above ground while much of its story remains hidden beneath the soil. How quickly are the potatoes growing? How much does their size change during the day? And what could those changes reveal about water use? Research described in a presentation abstract by Steven Link, Jacob Blauer, and Michael […]

Why Measuring What’s Underground Has Always Been the Hard Part

Why Measuring What's Underground Has Always Been the Hard Part

If you grow apples, tomatoes, or cherries, there’s a decent chance you’ve heard of sensors that clip onto the fruit and track its growth day by day. That kind of real-time monitoring has become fairly common for above-ground crops over the past couple of decades. But if you grow potatoes, sweet potatoes, or anything else […]

Could Real-Time Tuber Data Help You Time Your Harvest Better?

Could Real-Time Tuber Data Help You Time Your Harvest Better?

Every grower eventually faces the same question near the end of the season: how many more days is it worth leaving the crop in the ground? Leave it too long, and you risk weather, disease, or diminishing returns. Pull it too early, and you leave yield, and money, sitting in the field. For most below-ground […]

Rain Barely Touches the Soil, But Plants Still Feel It Fast

Rain Barely Touches the Soil, But Plants Still Feel It Fast

A light rain, the kind that barely dampens the top layer of soil, doesn’t seem like it should matter much to a plant with roots reaching a foot or more into the ground. It’s easy to assume a shower like that just evaporates off before it does anything useful. But when we tracked stem measurements […]

Two Ways to Handle Stress: Toughing It Out vs. Playing It Safe

Two Ways to Handle Stress: Toughing It Out vs. Playing It Safe

Picture two neighbors living through the same drought. Same soil, same sun, same lack of rain. One of them grits their teeth and keeps pushing, no matter how uncomfortable it gets. The other pulls back early, plays it cautious, and settles for less. Neither one is wrong. They’re just handling the same hard summer in […]

The Hidden Variable That Can Throw Off Any Field Sensor: Temperature

The Hidden Variable That Can Throw Off Any Field Sensor: Temperature

When you put a sensor out in a real field instead of a controlled lab, you inherit all the messiness of the real world along with it. Sun, wind, rain, dust, and one factor that’s easy to overlook because it seems so ordinary: temperature. It turns out temperature alone can quietly distort a sensor’s readings, […]

Why Old Sensors Kept Breaking (and How a Simple Fix Solved It)

Why Old Sensors Kept Breaking (and How a Simple Fix Solved It)

Good research tools sometimes fail in a very unglamorous way: not by giving wrong answers, but by simply not being practical enough to use for very long. That was the situation with plant dendrometers before this project. The idea behind them was solid, but the devices themselves had a design flaw that made them frustrating […]

Your Apple Is Growing Right Now. Here’s How We Know

Your Apple Is Growing Right Now. Here's How We Know

Stand next to an apple tree in September and it looks perfectly still. But if you clip the right sensor onto a piece of fruit and watch it closely, you’ll see it’s anything but static. It’s steadily, quietly getting bigger, day after day, in a pattern that looks nothing like what’s happening in the trunk […]

Why a Plant’s Stem Can Tell You More Than Its Leaves

Why a Plant's Stem Can Tell You More Than Its Leaves

When most people think about checking on a plant’s health, they look at the leaves. Are they wilting? Curling? Turning brown at the edges? It’s a natural place to look, since leaves are the most visible part of the plant. But leaves are often one of the last places water stress shows up, not the […]

What Your Potatoes Are Doing at Night (and Why It Matters)

What Your Potatoes Are Doing at Night

Most growers know their crops act differently in the heat of the day than they do overnight. Leaves wilt a little in the afternoon sun and perk back up by morning. But what about a potato, sitting entirely underground, out of sight the whole time? Does it have a day-night rhythm too? That question was […]