Dryland cropping systems influence the microbial biomass and enzyme activities in a semiarid sandy soil

Acosta-Martínez, Verónica; Lascano, Robert J.; Calderón, Francisco; Booker, J. D.; Zobeck, Ted M.; Upchurch, D. R.

doi:10.1007/s00374-011-0565-1

Cited by 69 publications

(47 citation statements)

References 39 publications

(51 reference statements)

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“…The combination of reduced or no-tillage with crop rotation or incorporation of perennial crops for integrated livestock and cropping systems promote AM fungi which enhance plant uptake of phosphorus and water, and disease resistance potential [151]. Although conservation tillage has been reported to impact beneficial microbial communities in certain scenarios (e.g., soils in humid regions), Acosta-Martinez et al [152] reported that semiarid soils under different cropping systems showed no differences in microbial community size or structure when no-tillage and conventional tillage systems were compared after five years.…”

Section: A General Approach: Modify the Whole Soil Communitymentioning

confidence: 99%

“…Given this enormous amount of functional diversity, substantial research is needed to link microbial species, or assemblages, with key function(s) in the soil, and in particular how they are influenced by management [152,[196][197][198]. Furthermore, addressing emerging challenges such as climate change and land use will be reliant upon the identification of microbial species and/or assemblages that enhance soil structure, nutrient and water uptake by plants, and protection from pathogens, pests, and weeds.…”

Section: Framing High Priority Research Questionsmentioning

confidence: 99%

“…Changes in cropping systems resulting from an earlier growing season, emerging plant pathogens and lower yields, and cropping sequence disruption due to drought cycles in certain regions will challenge land and water resources to maintain food, fiber, and feed production for the growing population. For example, frequent drought cycles in the U.S. Southern Plains have resulted in transition from irrigated to dryland production with possible total crop abandonment and/or interruptions in production cycles [152,221]. Identification of key soil microbial assemblages and the soil management practices that support these key microbial assemblages may assist the recovery of soils from major disturbances.…”

Section: Soil Biology Research Investments Needed To Ensure Our Futurmentioning

confidence: 99%

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Understanding and Enhancing Soil Biological Health: The Solution for Reversing Soil Degradation

et al. 2015

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Our objective is to provide an optimistic strategy for reversing soil degradation by increasing public and private research efforts to understand the role of soil biology, particularly microbiology, on the health of our world's soils. We begin by defining soil quality/soil health (which we consider to be interchangeable terms), characterizing healthy soil resources, and relating the significance of soil health to agroecosystems and their functions. We examine how soil biology influences soil health and how biological properties and processes contribute to sustainability of agriculture and ecosystem services. We continue by examining what can be done to manipulate soil biology to: (i) increase nutrient availability for production of high yielding, high quality crops; (ii) protect crops from pests, pathogens, weeds; and (iii) manage other factors limiting production, provision of ecosystem services, and resilience to stresses like droughts. Next we look to the future by asking what needs to be known about soil biology that is not currently recognized or fully understood and how these needs could be addressed using emerging research tools. We conclude, based on our perceptions of how new knowledge regarding soil biology will help make agriculture more sustainable and productive, by recommending research emphases that should receive first priority through enhanced public and private research in order to reverse the trajectory toward global soil degradation.

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Section: A General Approach: Modify the Whole Soil Communitymentioning

confidence: 99%

Section: Framing High Priority Research Questionsmentioning

confidence: 99%

Section: Soil Biology Research Investments Needed To Ensure Our Futurmentioning

confidence: 99%

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Understanding and Enhancing Soil Biological Health: The Solution for Reversing Soil Degradation

et al. 2015

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“…Among the benefits of cover cropping on soil microbial activity are the increase of enzyme activities and also the improvement of parameters such as the microbial biomass carbon (Cmic) and the soil respiration (Acosta-Martínez et al, 2011;Marinari et al, 2006;Sainju et al, 2008;Tejada et al, 2008). The microbial biomass is the living component of SOM and participates in nutrient transformations and storage (Rice et al, 1996).…”

Section: General Introductionmentioning

confidence: 99%

“…Among these characteristics, soil enzymatic activities are proposed as early indicators to new crop incorporations in agricultural systems (Acosta-Martínez et al, 2011;Acosta-Martinez et al, 2007;Bandick and Dick, 1999). Enzyme activities have close relationships with soil microorganisms, plants, environmental effects and ecological interactions, and because of their involvements in nutrients cycles they have been suggested as soil fertility indicators (Dick and Tabatabai, 1993).…”

Section: Introductionmentioning

confidence: 99%

Biological and other soil parameters response to winter cover crops in a mediterranean irrigated system

González¹

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Decreased land use intensity improves surface soil quality on marginal lands

Jin

Kettler

et al. 2021

Agrosystems Geosci & Env

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The Conservation Reserve Program (CRP) has been a major factor in land transitions out of intensive row-crop management on marginally productive lands in the central United States. While CRP can protect these more environmentally sensitive lands against erosion and potential nutrient loss, information on how CRP affects soil quality over time is limited. Using a chronosequence with 0-40 yr of CRP conversion history, we evaluated soil quality under different land use intensities (CRP, pasture, row crop) using the Soil Management Assessment Framework (SMAF). Effects of slope classes (higher [14-25%] and lower [2-14%]) and soil depth (0-120 cm) were also evaluated. Our results show that the soils were functioning at 84 and 78% of their theoretical capacity under CRP and row crop, respectively. Conversion to CRP enhanced overall soil quality by increasing soil biological, physical, and chemical attributes, but soil nutrient availability decreased due to the absence of fertilizer application. Increasing soil organic C (SOC) enhanced overall soil quality because of its impact on soil biological, physical, chemical, and nutrient conditions. Conversion to CRP will likely have greater benefits for more environmentally sensitive soils (i.e., higher slope) as demonstrated by structural equation modeling. Land use effects were also depth dependent, with more prominent effects within the 0-to-5-cm than

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Dryland cropping systems influence the microbial biomass and enzyme activities in a semiarid sandy soil

Cited by 69 publications

References 39 publications

Understanding and Enhancing Soil Biological Health: The Solution for Reversing Soil Degradation

Understanding and Enhancing Soil Biological Health: The Solution for Reversing Soil Degradation

Biological and other soil parameters response to winter cover crops in a mediterranean irrigated system

Decreased land use intensity improves surface soil quality on marginal lands

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