Historical Analysis: Your Most Cost-Effective Irrigation Service Plan

Many farmers make the same mistake: they wait for the first heatwave in July to check if their pivot systems are working. By then, technicians are overbooke

d, and the damage to the yield is already done. The key to success in precision agriculture is prevention, not just reaction.

Before you even plant your fields, y

our most important stop is historical satellite imagery. Using last season’s data, you can perform a “digital overhaul” and spot irrigation errors tha

t are invisible to the naked eye.

What do NDVI and NDMI Indices Reveal?

The satellite archive acts as an X-ray of your machinery. If you see regular geometric shapes, it’s a signature of mechanics, not nature.

1. Light Rings (Moisture Deficit)

When you see light, concentric circles on the map, the diagnosis is clear: clogged or worn-out nozzles. On those radii, the plant receives, for exam

ple, 70% of the re

quired water. The corn won’t wilt, but the ear will be smaller and the grain poorly filled. You lose yield on every revolution the nozzle makes.

2. Dark Rings (Excess Moisture)

A dark blue line on the moisture map often turns into a dark green streak on the NDVI map that stays green longer than the rest of the fie

ld (stay-green effect). This is “fake health.” The cause is usually a missing nozzle or a faulty pressure regulator. Excess water in one spot leaches nitrogen and creates uneven grain moisture. The result? Higher drying bills at harvest.

3. Ribbed Effect

If you see transverse stripes, your pivot is not moving smoothly. Problems with tower alignment or the drive system cause the machine to “stutter.” Where it pauses, it creates a puddle; where it rushes, it leaves a dry spot.

FarmBooker Recommendations for Preventative Service

1. Digital Archaeology: Access FarmBooker and analyze NDVI/NDMI maps from last August. That’s when errors are most visible.

2. GPS Navigation to the Fault: No need for manual measurements. Use our mobile app and GPS location to stand exactly in the “problem ring” in the field.

3. Physical Nozzle Inspection: At that location, check the condition of the nozzles and regulators. A single new gasket can save tons of yield.

4. Energy Savings: A faulty system consumes more energy (electricity or diesel) for a worse result. Repairing before the season directly reduces energy costs per kilogram of grain.

See suspicious circles on your maps? Send us a screenshot to [email protected] for a free analysis or book a FarmBooker demo today!