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A Multivariate Approach to Evaluate Reduced Tillage Systems and Cover Crop Sustainability

Author

Listed:
  • Felice Sartori

    (Department of Agronomy, Food, Natural Resources, Animals and Environment, University of Padova, Viale dell’Università 16, 35020 Legnaro, Italy)

  • Ilaria Piccoli

    (Department of Agronomy, Food, Natural Resources, Animals and Environment, University of Padova, Viale dell’Università 16, 35020 Legnaro, Italy)

  • Riccardo Polese

    (Department of Agronomy, Food, Natural Resources, Animals and Environment, University of Padova, Viale dell’Università 16, 35020 Legnaro, Italy)

  • Antonio Berti

    (Department of Agronomy, Food, Natural Resources, Animals and Environment, University of Padova, Viale dell’Università 16, 35020 Legnaro, Italy)

Abstract

The evaluation of the effects of conservation agriculture during the transition from conventional tillage to no-tillage requires numerous indicators to be considered. For this purpose, we monitored changes in a multi-parameter dataset during a three-year experiment that combined three tillage intensities (conventional tillage—CT; minimum tillage—MT; and no tillage—NT) with three soil covering managements (tillage radish cover crop, winter wheat cover crop and bare soil). Using a multivariate analysis, we developed a Relative Sustainability Index ( RSI ) based on 11 physical (e.g., bulk density and penetration resistance), chemical (e.g., soil organic carbon and pH) and biological soil properties (e.g., earthworm density) to evaluate cropping systems sustainability. The RSI was most affected by tillage intensity showing higher RSI values (i.e., better performances) in reduced tillage systems. Specifically, the RSI under NT was 42% greater than that of CT and 13% greater than that of MT. Soil covering had little impact on the RSI . Among the tested parameters, the RSI was increased most by saturated hydraulic conductivity (+193%) and earthworm density (+339%) across CT and NT treatments. Our results suggest that conservation agriculture and, particularly, reduced tillage systems, have the potential to increase farm environmental and agronomic sustainability.

Suggested Citation

  • Felice Sartori & Ilaria Piccoli & Riccardo Polese & Antonio Berti, 2021. "A Multivariate Approach to Evaluate Reduced Tillage Systems and Cover Crop Sustainability," Land, MDPI, vol. 11(1), pages 1-16, December.
    • Handle: RePEc:gam:jlands:v:11:y:2021:i:1:p:55-:d:715116
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    Cited by:

    1. Felicia Chețan & Cornel Chețan & Ileana Bogdan & Paula Ioana Moraru & Adrian Ioan Pop & Teodor Rusu, 2022. "Use of Vegetable Residues and Cover Crops in the Cultivation of Maize Grown in Different Tillage Systems," Sustainability, MDPI, vol. 14(6), pages 1-14, March.

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