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Ecological Sciences/Technical Resources - Agronomy

Soil Health

Managing for soil health is one of the easiest and most effective ways for farmers to increase crop productivity and profitability while improving the environment. Read our healthy, productive soil health checklist for growers (PDF; 935 KB) and learn what might be a part of your soil health management system. 

For more information, click here.

National Agronomy Technical Notes

To locate the National Agronomy Technical Notes, go to the national edirectives website:  On the menu bar to the left under "Browse by Directive", click on the link 'Technical Notes', then again on 'Title 190 - Ecological Sciences'.  Click on Agronomy for the technical notes.

Idaho Agronomy Technical Notes

Document Title Size
Agronomy Index   (PDF; 12 KB)
Tech. Note 1 Critical Nutrient Ranges in Northwest Crops (WREP Publication 43) (PDF; 16 KB)
     Attachment for Tech. Note 1   (PDF; 1.9 MB)
Tech. Note 2 A Nutrient Management Planning Tool for Conservation Planning (PDF; 81 KB)
Tech. Note 6 Reservoir Tillage (PDF; 10 KB)
     Attachment for Tech. Note 6   (PDF: 43 KB)
Tech. Note 8

Estimating Gross Erosion From Field Measurement of Rill Erosion in Tons/Acre

(PDF; 36 KB)
Tech. Note 9 Vegetative Filter or Buffer Strips  (PDF; 291 KB)
Tech. Note 12 Pacific Northwest Handbooks for Weed and Insect Management (PDF; 13 KB)
Tech. Note 18 Pest Management: Pesticide Environmental Risk Assessment Using WIN-PST, Version 3.0 (PDF; 111 KB)
Tech. Note 21 Suitable pH Range for Various Crops (PDF; 28 KB)
Tech. Note 22 Idaho OnePlan Nutrient Planning Model (PDF; 16 KB)
Tech. Note 27 Manure Spreader Calibration (PDF; 33 KB)
Tech. Note 28 Weight Per Bushel of Farm Crop Seeds (PDF; 28 KB)
Tech. Note 29 Using Pesticides Safely (PDF; 46 KB)
Tech. Note 30

Using Chisel-Plant Residue Management Systems to Improve Potato Quality and Protect the Environment

(PDF; 19 KB)
Tech. Note 31

Measuring and Estimating Concentrated Flow and Ephemeral Gully Erosion on Cropland

(PDF: 24 KB)
Tech. Note 32 Predicting Irrigation Induced Soil Loss on Surface Irrigation Cropland (XLS; 645 KB)
Tech. Note 33 Pesticide and Pesticide Container Handling and Disposal (PDF; 36 KB)
Tech. Note 40 Core4 Conservation Practices: The Common Sense Approach to Natural Resource Conservation (PDF; 15 KB)
Tech. Note 42 Idaho Fertilizer Guides (PDF; 12 KB)
Tech. Note 43 Measuring and Estimating Amounts of Crop Residues (PDF; 2.68 MB)
Tech. Note 47 Irrigation and Nitrogen Management to Improve Nitrogen Fertilizer Efficiency (PDF; 10 KB)
     Attachment for Tech. Note 47   (PDF; 30 KB)
Tech. Note 50 The Soil Tillage Intensity Rating (STIR) (PDF; 24 KB)
Tech. Note 51   Idaho’s Noxious Weeds (PDF; 13 KB)
Tech. Note 52 CORE4 – Farm Equipment Identification and Use (PDF; 5.2 MB)
  Power Point Presentation  "
Tech. Note 53 Soil Erosion by Wind and Its Control - (Video DVD) (PDF; 12 KB)
Tech. Note 54 Plant Nutrient Deficiency for Idaho Crops  (PDF; 408 KB)
Tech. Note 55 Tillage and Seeding Equipment Southwestern Idaho (PDF; 9.36 MB)
Tech. Note 56 Cover Crops  Revised January 2012 (PDF; 716 KB)
Tech. Note 57 Bed Planting for Sprinkler Irrigated Potato Production (PDF; 3.04 MB)

RUSLE2 Precipitation Maps

County County County County County County County County County County County
Ada Adams Bannock Bear Lake Benewah Bingham Blaine Boise Bonner Bonneville Boundary
Butte Camas Canyon Caribou Cassia Clark Clearwater Custer Elmore Franklin Fremont
Gem Gooding Idaho Jefferson Jerome Kootenai Latah Lemhi Lewis Lincoln Madison
Minidoka Nez Perce Oneida Owyhee Payette Power Shoshone Teton Twin Falls Valley Washington

Soil Loss Calculations

Use the Idaho Soil Loss Computation Spreadsheet to assist with calculating concentrated flow and ephemeral gully erosion, classical gully erosion, streambank erosion and mass movement.  There is also an alternative method to calculate gross soil loss from cropland fields where significant rill erosion occurs.


Seasonal High Tunnel System for Crops