Technology & Consulting
Pressure Bomb Calibrated Soil Probes
Northern Sacramento Valley

About Us

We Want to Help You Irrigate

At WaterLabs we help growers decide WHEN and HOW LONG to irrigate. We install soil probes, calibrate them with the pressure bomb, and send data hourly to your phone or computer in a SIMPLE easy to read form.


We can also calibrate and pull data from your existing soil moisture monitoring stations.


Call for more information

530 717 0679



Almond and Walnut




Site & Soil Specific Installation and Maintanace

Regular in Season Pressure Bomb Visits to Calibrate Probes to Current Tree Growing Conditions

Data Sent to Computer, Iphone or Android Devices in a Simple Easy to Read Form

*Price May Vary Depending on Site and Soil Characteristics


The Data

WaterLabs Graph.png

Wet 0 to -6

Field Capacity/ Runoff.

Good -6 to -11

Low stress. Stimulates shoot growth, especially in developing orchards. Higher yield potential may be possible if these levels of crop stress are sustained over a season, barring no other limitations related to frost, pollination, diseases, or nutrition. Sustaining these levels may result in higher incidence of disease and reduced life span.

Slight/Moderate Stress -11 to -18

Mild stress. Suitable from mid-June until the onset of hull split (July). Still able to produce competitively. Recommended crop stress level after harvest. May reduce energy costs or help cope with drought conditions. (-11 to -14)

Moderate stress. Stops shoot growth in young orchards. Mature almonds can tolerate this level of crop stress during hull split (July/August) and still yield competitively. May help control diseases such as hull rot and alternaria, if present. May expedite hull split and lead to more uniform nut maturity. Also may help reduce energy costs and cope with drought conditions. (-14 to -18)

Dry -18+

Moderate to high stress. Should be avoided for extended periods. Likely to reduce yield potential, and may contribute to lower limb dieback. (-18 to -20)

High stress. Wilting observed. Some defoliation. Impacts yield potential. (-20 to -30)

Very high to severe stress. Extensive or complete defoliation is common. Trees may survive despite severe defoliation and may be rejuvenated. (-30 to -60)


Po box 280

Maxwell, CA 95955




Questions or Quotes?


Nathan Azevedo

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