Grass Buffer Strips Improve Soil Health and Mitigate Greenhouse Gas Emissions in Center-Pivot Irrigated Cropping Systems
Declining water resources and soil degradation have significantly affected agricultural sustainability across the world. In the southern High Plains of USA, buffer strips of perennial grasses alternating with cultivated corn strips were introduced in center-pivot irrigated crop fields to increase ag...
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creator | Salehin, Sk. Musfiq-Us Ghimire, Rajan Angadi, Sangamesh V. Idowu, Omololu J. |
description | Declining water resources and soil degradation have significantly affected agricultural sustainability across the world. In the southern High Plains of USA, buffer strips of perennial grasses alternating with cultivated corn strips were introduced in center-pivot irrigated crop fields to increase agronomic production and ecosystem services. A study was conducted to evaluate soil carbon (C) and nitrogen (N) dynamics, greenhouse gas (GHG) emissions, and soil health benefits of integrating circular grass buffer strips in the center-pivot irrigated corn production system. Multiple parameters were assessed in the grass buffer strips, and at distances of 1.52, 4.57, and 9.14 m away from the edges of grass strips in corn strips. While grasses in the buffer strips depleted N compared to corn strips, potential C mineralization (PCM) was 52.5% to 99.9% more in grass strips than in corn strips. Soil microbial biomass C (MBC) content was 36.7% to 52.5% greater in grass strips than in corn strips. Grass buffer also reduced carbon dioxide (CO2) and nitrous oxide (N2O) emissions from corn strips. Grass buffer strips can improve soil health and sustainability in center-pivot irrigated cropping systems by increasing soil C components and reducing GHG emissions. |
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Musfiq-Us ; Ghimire, Rajan ; Angadi, Sangamesh V. ; Idowu, Omololu J.</creator><creatorcontrib>Salehin, Sk. Musfiq-Us ; Ghimire, Rajan ; Angadi, Sangamesh V. ; Idowu, Omololu J.</creatorcontrib><description>Declining water resources and soil degradation have significantly affected agricultural sustainability across the world. In the southern High Plains of USA, buffer strips of perennial grasses alternating with cultivated corn strips were introduced in center-pivot irrigated crop fields to increase agronomic production and ecosystem services. A study was conducted to evaluate soil carbon (C) and nitrogen (N) dynamics, greenhouse gas (GHG) emissions, and soil health benefits of integrating circular grass buffer strips in the center-pivot irrigated corn production system. Multiple parameters were assessed in the grass buffer strips, and at distances of 1.52, 4.57, and 9.14 m away from the edges of grass strips in corn strips. While grasses in the buffer strips depleted N compared to corn strips, potential C mineralization (PCM) was 52.5% to 99.9% more in grass strips than in corn strips. Soil microbial biomass C (MBC) content was 36.7% to 52.5% greater in grass strips than in corn strips. Grass buffer also reduced carbon dioxide (CO2) and nitrous oxide (N2O) emissions from corn strips. Grass buffer strips can improve soil health and sustainability in center-pivot irrigated cropping systems by increasing soil C components and reducing GHG emissions.</description><identifier>ISSN: 2071-1050</identifier><identifier>EISSN: 2071-1050</identifier><identifier>DOI: 10.3390/su12156014</identifier><language>eng</language><publisher>Basel: MDPI AG</publisher><subject>Agricultural production ; Agronomic crops ; Agronomy ; Aquifers ; Biodegradation ; Biomass ; Carbon dioxide ; Corn ; Crop fields ; Cropping systems ; Crops ; Cultivation ; Ecosystem services ; Efficiency ; Emissions ; Emissions control ; Environmental degradation ; Grain cultivation ; Grasses ; Grasslands ; Greenhouse effect ; Greenhouse gases ; High plains ; Irrigation ; Irrigation systems ; Laboratories ; Microorganisms ; Mineralization ; Nitrogen ; Nitrous oxide ; Nonpoint source pollution ; Seasons ; Soil degradation ; Soil dynamics ; Soil erosion ; Soil improvement ; Soil water ; Studies ; Sustainability ; Sustainable agriculture ; Water resources</subject><ispartof>Sustainability, 2020-08, Vol.12 (15), p.6014</ispartof><rights>2020. 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Multiple parameters were assessed in the grass buffer strips, and at distances of 1.52, 4.57, and 9.14 m away from the edges of grass strips in corn strips. While grasses in the buffer strips depleted N compared to corn strips, potential C mineralization (PCM) was 52.5% to 99.9% more in grass strips than in corn strips. Soil microbial biomass C (MBC) content was 36.7% to 52.5% greater in grass strips than in corn strips. Grass buffer also reduced carbon dioxide (CO2) and nitrous oxide (N2O) emissions from corn strips. 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subjects | Agricultural production Agronomic crops Agronomy Aquifers Biodegradation Biomass Carbon dioxide Corn Crop fields Cropping systems Crops Cultivation Ecosystem services Efficiency Emissions Emissions control Environmental degradation Grain cultivation Grasses Grasslands Greenhouse effect Greenhouse gases High plains Irrigation Irrigation systems Laboratories Microorganisms Mineralization Nitrogen Nitrous oxide Nonpoint source pollution Seasons Soil degradation Soil dynamics Soil erosion Soil improvement Soil water Studies Sustainability Sustainable agriculture Water resources |
title | Grass Buffer Strips Improve Soil Health and Mitigate Greenhouse Gas Emissions in Center-Pivot Irrigated Cropping Systems |
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