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Drought Management Strategies: Calculating Forage Growth Potential and Resource Protection

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This document discusses the Drought Calculator developed by experts from NRCS and ARS, focusing on the impact of precipitation patterns, temperature, and plant growth curves on forage production. It provides insights into the correlation of rainfall and forage growth, particularly during critical months such as March through July. The strategies outlined emphasize the importance of proactive drought planning, including implementing effective grazing systems, developing water resources, and preparing for necessary reductions in livestock numbers. A successful response to drought is rooted in acceptance and prepared adaptation.

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Drought Management Strategies: Calculating Forage Growth Potential and Resource Protection

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  1. Drought Calculator • Arnold Norman, NRCS Fort Worth, TX • Gale Dunn, ARS Fort Collins, CO • Megan Christensen, ARS Fort Collins • NDSU Research Ext. Centers • ARS-Mandan, Miles City

  2. Monthly Precip. • Plant Growth Curves • Long Term monthly Precip. • Growth Model or Long Term research

  3. Temperature • Timing and Intensity of precip. • 75% Accuracy

  4. Forage Growth potential

  5. Carry-Over Potential • One year-Less than 50% correlation • Several years-negative effect • Carry-over not used by Drought Calculator

  6. Rainfall and Forage Growth

  7. Half of normal March-June • 5 inches in July…too late

  8. Drought Plan • Protect the Resource • Implement a grazing system • Develop Water • Monitor at Critical Dates • Prepare to sell down • Accept it…Drought Happens

  9. http://www.nrcs.usda.gov/wps/portal/nrcs/site/nd/home/

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