SOIL HEALTH Alliance 15.12 Inches Annual Precipitation Watson - - PowerPoint PPT Presentation
SOIL HEALTH Alliance 15.12 Inches Annual Precipitation Watson - - PowerPoint PPT Presentation
SOIL HEALTH Alliance 15.12 Inches Annual Precipitation Watson Brothers Partnership 3,500 acres total 9 center pivots 2,200 acres dry land Complete continuous crop no till since 1994 Dry land Crop Rotation Winter Wheat-Corn-Field Pea
Alliance –15.12 Inches Annual Precipitation
3,500 acres total 9 center pivots 2,200 acres dry land Complete continuous crop no till since 1994
Watson Brother’s Partnership
Dry land Crop Rotation
- Winter Wheat-Corn-Field Pea
- 2/3 of rotation is planted to high
residue crops. Need high amounts of residue to improve water infiltration and lower soil moisture evaporation.
IRRIGATED CROP ROTATION
- Winter wheat, corn, dry
edible beans (pinto beans)
- 2/3 high residue crops
- Water infiltration and lower
soil moisture evaporation
Soil Types
- Valent Fine Sand
- Water Holding Capacity- .96 inches/foot
- Keith and Alliance Silt Loam
- Water Holding Capacity- 1.8 inches/foot
- Our problem is these soils are only 2 feet
deep, with a layer of white calcareous soils underneath
Challenges
- Soils have low water holding
capacities 4-6 inches
- High Evapo-Transpiration rates
- Rapidly Declining Groundwater
- Water Allocations-
- 13.5 in./year
Box Butte County
Challenges
- Hydrologists estimate 5-8 inch
pumping allocations per pivot to stop groundwater decline
- If groundwater pumping isn’t
reduced we’ll lose 80% of our irrigated acres in 30-40 years
YOU HAVE TO START BY MANAGING YOUR SOIL!
- Focus on Soil Quality
- Increased soil organic matter
leads to good soil aggregation and increased pore space in soil
- Use previous crop’s residue to
improve water infiltration and reduce soil moisture evaporation
Native Soil Structure
Soil Compaction
LONG TERM NO TILL
MANAGING YOUR RESIDUE,
STOP MANAGING RESIDUE WITH TILLAGE!
MANAGE RESIDUE AT HARVEST
MANAGE RESIDUE AT PLANTING
SOIL MOISTURE SENSORS
Watson Brother’s South Well
- CURR_OWN WATSON/MARK H & BRUCE E
- CONTACT_ID 966
- QTR SW
- SECTION_ 14
- TOWNSHIP 26
- RANGE 48
- ACRES 136
- SUBAREA 4
- METER_SN 05-8-1840
- IN_2007 9.22- winter wheat
- IN_2008 7.51- corn
- IN_2009 5.63- edible beans
- In_2010 10.70- corn
- In-2011 5.04- edible beans
- In-2012 14.32- winter wheat, (cover crop-5 inches)
- 6 Average-8.73
Watson Brothers North Well
- CURR_OWN WATSON/MARK H & BRUCE E
- CONTACT_ID 966
- QTR NW
- SECTION_ 14
- TOWNSHIP 26
- RANGE 48
- ACRES 273
- SUBAREA 4
- METER_SN 04-8-3886
- IN_2007 10.12- corn, edible beans
- IN_2008 7.83- edible beans, winter wheat
- IN_2009 3.65- winter wheat, corn
- In_2010 6.85- corn, edible beans
- In-2011 4.3- winter wheat, corn
- In- 2012 11.57- corn, edible beans
- 6 year Average- 7.38
LEGAL DESCRI PTION METER SERIAL # ACRES 5 year Average 2008 INCHES 2009 INCHES 2010 INCHES 2011 INCHES 2012 INCHES SE 30- 24-49 04-8- 4468 96 10.32 9.81 5.22 13.16 8.84 13.13 SW 29- 24-49 04-8- 4466 175 9.11 7.59 4.78 9.88 8.87 14.46 SW 28- 24-49 04-8- 4460 130 10.4 8.66 10.75 9.96 4.49 17.84 NW 28- 24-49 04-8- 4456 130 10.96 12.55 10.6 10.32 4.05 17.28 SE 29- 24-49 04-8- 4462 117 8.3 7.71 3.31 13.5 7.76 9.23
WATER CONSERVATION
- GOAL OF EVERY PRODUCER-ZERO
GROUNDWATER DEPLETION
- GOAL IS ATTAINABLE WITH:
- NO TILL CROP PRODUCTION
- 2/3 ROTATION HIGH RESIDUE
CROPS
- SOIL MOISTURE MONITORING
SOIL HEALTH
FORAGE/COVER CROPS
- 80 LBS. FIELD PEAS
- 5 LBS. FLAX
- 2 LBS. NITRO RADISH
- 2 LBS. SUNFLOWER
FORAGE/COVER CROP GOALS
- Manage Residue- turn residue
from high Carbon-Low Nitrogen into High Nitrogen- Low carbon
- Improve early spring growth
in corn
FORAGE/COVER CROP GOALS
- Improve organic matter
content of soil
- Improve diversity and
populations of soil microbes
- Improve soil health
FORAGE/COVER CROP GOALS
- Reduce dependence on
commercial fertilizer
- Forage for cattle
- Concern- 5 inches of irrigation
to grow cover crop
Watson Brothers Cover Crop November 14, 2012
Hay Yield, Ton/A @ 15 % Moisture
Cover Crop
Yield 8.84 Tons/A Nutrient Lbs of Nutrient/A Carbon C 6722 Nitrogen N 171.5 Phosphorus P2O5 28.5 Potassium K2O 114.6 Calcium Ca 140.2 Magnesium Mg 24.2 Sulfur S 21.2 Zinc Zn 0.248 Iron Fe 19.094 Manganese Mn 0.990 Copper Cu 0.060 C:N Ratio C:N 39 I estimate the N release to be about 50 lbs per acre. The release will be slower than normal because of the carbon in the sample. Ray