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**AWARDS ISSUED PRIOR TO JANUARY 20, 2025, WERE FUNDED UNDER PREVIOUS ADMINISTRATIONS AND MAY NOT REFLECT THE PRIORITIES AND POLICIES OF THE CURRENT ADMINISTRATION.** HISTORICALLY MANAGEMENT OF AGRICULTURAL SOILS HAS RESULTED IN DEPLETION OF SOIL BIODIVERSITY AND INEFFICIENCIES IN BIOGEOCHEMICAL CYCLES. SOIL HEALTH MANAGEMENT STRATEGIES HAVE OFTEN COMBATED THESE NEGATIVE EFFECTS, BUT STAKEHOLDERS ARE HUNGRY FOR INFORMATION REGARDING POTENTIAL SYNERGIES BETWEEN MANAGEMENT PRACTICES. HERE WE PROPOSE TO IMPROVE THE POTENTIAL OF SOIL HEALTH MANAGEMENT AND IDENTIFY ITS IMPLICATION FOR SOIL FUNCTION AND DIVERSITY BY ADDRESSING THE FOLLOWING INTEGRATED RESEARCH (RO) OBJECTIVES:•RO1. DETERMINE THE INTERACTIVE EFFECTS OF COVER CROP DIVERSITY, INTERCROPPING, COMPOST ADDITION, AND LIVESTOCK-CROP INTEGRATION ON AGROECOSYSTEM C AND NITROGEN (N) CYCLING.•RO2. DETERMINE THE INTERACTIVE EFFECTS OF COVER CROP DIVERSITY, INTERCROPPING, COMPOST ADDITION, AND LIVESTOCK-CROP INTEGRATION ON MICROBIAL COMMUNITY COMPOSITION, DIVERSITY, AND FUNCTION.•RO3. DETERMINE WHETHER MULTIPLE SOIL HEALTH MANAGEMENT PRACTICES INFLUENCE SOIL RESISTANCE/RESILIENCE TO GLOBAL CHANGE FACTORS (I.E., WARMING, PRECIPITATION, AND SALINITY REGIMES).TO REALIZE RO1 AND RO2, WE WILL PAIR A COMMON GARDEN EXPERIMENT WITH A STABLE ISOTOPE PULSE-CHASE, WHILE SIMULTANEOUSLY QUANTIFYING THE COMPOSITION, DIVERSITY AND FUNCTION OF SOIL MICROBIAL COMMUNITIES, ENABLING FOR A BETTER UNDERSTANDING OF HOW SOIL HEALTH MANAGEMENT PRACTICES INTERACT. WE WILL THEN EXPOSE SOILS TO AN ARRAY OF GLOBAL CHANGE FACTORS, USING A MICROCOSM APPROACH, TO ADDRESS RO3. TOGETHER THE RESULTS OF THESE OBJECTIVES WILL ILLUSTRATE SYNERGIES BETWEEN SOIL HEALTH MANAGEMENT PRACTICES, AND HOW THESE PRACTICES IMPACT SOIL BIOGEOCHEMISTRY AND MICROBIAL COMMUNITIES. ADDITIONALLY, THIS WORK WILL PROVIDE CRITICAL LINKS BETWEEN SOIL HEALTH METRICS AND SOIL MICROBIAL COMMUNITY COMPOSITION AND FUNCTION WHILE ALSO HIGHLIGHTING THE RESISTANCE/RESILIENCE OF THESE COMMUNITIES TO GLOBAL CHANGE.

$749,832FY2022National Institute of Food and AgricultureUSDA

Regents Of The University Of Idaho, Moscow ID

Investigators

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**AWARDS ISSUED PRIOR TO JANUARY 20, 2025, WERE FUNDED UNDER PREVIOUS ADMINISTRATIONS AND MAY NOT REFLECT THE PRIORITIES AND POLICIES OF THE CURRENT ADMINISTRATION.** HISTORICALLY MANAGEMENT OF AGRICULTURAL SOILS HAS RESULTED IN DEPLETION OF SOIL BIODIVERSITY AND INEFFICIENCIES IN BIOGEOCHEMICAL CYCLES. SOIL HEALTH MANAGEMENT STRATEGIES HAVE OFTEN COMBATED THESE NEGATIVE EFFECTS, BUT STAKEHOLDERS ARE HUNGRY FOR INFORMATION REGARDING POTENTIAL SYNERGIES BETWEEN MANAGEMENT PRACTICES. HERE WE PROPOSE TO IMPROVE THE POTENTIAL OF SOIL HEALTH MANAGEMENT AND IDENTIFY ITS IMPLICATION FOR SOIL FUNCTION AND DIVERSITY BY ADDRESSING THE FOLLOWING INTEGRATED RESEARCH (RO) OBJECTIVES:•RO1. DETERMINE THE INTERACTIVE EFFECTS OF COVER CROP DIVERSITY, INTERCROPPING, COMPOST ADDITION, AND LIVESTOCK-CROP INTEGRATION ON AGROECOSYSTEM C AND NITROGEN (N) CYCLING.•RO2. DETERMINE THE INTERACTIVE EFFECTS OF COVER CROP DIVERSITY, INTERCROPPING, COMPOST ADDITION, AND LIVESTOCK-CROP INTEGRATION ON MICROBIAL COMMUNITY COMPOSITION, DIVERSITY, AND FUNCTION.•RO3. DETERMINE WHETHER MULTIPLE SOIL HEALTH MANAGEMENT PRACTICES INFLUENCE SOIL RESISTANCE/RESILIENCE TO GLOBAL CHANGE FACTORS (I.E., WARMING, PRECIPITATION, AND SALINITY REGIMES).TO REALIZE RO1 AND RO2, WE WILL PAIR A COMMON GARDEN EXPERIMENT WITH A STABLE ISOTOPE PULSE-CHASE, WHILE SIMULTANEOUSLY QUANTIFYING THE COMPOSITION, DIVERSITY AND FUNCTION OF SOIL MICROBIAL COMMUNITIES, ENABLING FOR A BETTER UNDERSTANDING OF HOW SOIL HEALTH MANAGEMENT PRACTICES INTERACT. WE WILL THEN EXPOSE SOILS TO AN ARRAY OF GLOBAL CHANGE FACTORS, USING A MICROCOSM APPROACH, TO ADDRESS RO3. TOGETHER THE RESULTS OF THESE OBJECTIVES WILL ILLUSTRATE SYNERGIES BETWEEN SOIL HEALTH MANAGEMENT PRACTICES, AND HOW THESE PRACTICES IMPACT SOIL BIOGEOCHEMISTRY AND MICROBIAL COMMUNITIES. ADDITIONALLY, THIS WORK WILL PROVIDE CRITICAL LINKS BETWEEN SOIL HEALTH METRICS AND SOIL MICROBIAL COMMUNITY COMPOSITION AND FUNCTION WHILE ALSO HIGHLIGHTING THE RESISTANCE/RESILIENCE OF THESE COMMUNITIES TO GLOBAL CHANGE. · GrantIndex