ETgage used to measure crop water use.
View crop water use from around the Nebraska including locally at the Nebraska Ag Water Mgnt Network.
Location 1: 2 miles west of Hooper, rainfed no-till corn after soybeans on Moody Silty Clay Loam soil (about 2.2″ of available water per foot)
July 8– July 15
Weekly Rainfall & Crop Water Use for July 8 – July 15:
Rainfall = 1.4″
ET Reference Reading = 1.5
Corn Water Use (V16 growth stage) = 1.65″
Soil Water Depleted at Depth (Sensor Reading) on July 15:
1 ft = 0.26″ (47)
2 ft = 0.31″ (50)
3 ft = 0.00″ (11)
Total water depleted = 0.57″
Total available soil water for use before crop stress (50% depleted) occurs: 2.7″
Seasonal Summary (view previous weekly crop water use at NE Ag Water Mgnt Network):
June 10 – July 15 Rainfall: 8.7″
June 10 – July 15 Corn Water Use: 5.2″
Total June 10 – July 15 Surplus: 3.5″
Check out the Nebraska Drought Monitor Map too, new map release on Thursdays each week.
Location 2: 5 miles east of Winslow, irrigated soybeans after corn on Belfore Silty Clay Loam soil (about 2.0″ of available water per foot)
July 8 – July 15
Weekly Rainfall & Crop Water Use for July 8 – July 15:
Rainfall = 1.2″
Irrigation = 0.0″
ET Reference Reading = 1.1
Soybean Water Use (R2 growth stage) =1.1″
Soil Water Depleted at Depth (Sensor Reading) on July 15:
1 ft = 0.04″ (22)
2 ft = 0.19″ (32)
3 ft = 0.07″ (24)
Total water depleted = 0.30″
Total available soil water for use before irrigation should start (trigger point at 40% depleted): 2.1″
Seasonal Summary:
June 23 – July 15 Rainfall: 2.9″
June 23 – July 15 Irrigation: 0.0″
June 23 – July 15 Soybean Water Use: 3.8″
Total June 23 – July 15 Deficit: 0.9″
Location 3: 2 miles north of Arlington, irrigated no-till corn after soybeans on Belfore Silty Clay Loam Terrace soil (about 2.0″ of available water per foot)
July 8 – July 15
Weekly Rainfall & Crop Water Use for July 8 – July 15:
Rainfall = 0.9″
Irrigation = 0.0″
ET Reference Reading = 1.4
Corn Water Use (VT growth stage) = 1.54″
Soil Water Depleted at Depth (Sensor Reading) on July 15:
1 ft = 0.12″ (27)
2 ft = 0.19″ (32)
3 ft = 0.00″ (25)
Total water depleted = 0.39″
Total available soil water for use before irrigation should start (trigger point at 40% depleted): 2.0″
Seasonal Summary:
July 1 – July 15 Rainfall: 2.3″
July 1 – July 15 Irrigation: 0.0″
July 1 – July 15 Corn Water Use: 2.7″
Total July 1 – July 15 Deficit: 0.4″
