Soil Respiration and Carbon Balance Under Cover Crop in a no-Till Tropical Fruit Orchard

Freidenreich, Ariel; Dattamudi, Sanku; Li, Yuncong; Jayachandran, Krish

doi:10.3389/fenvs.2021.766638

Cited by 5 publications

(9 citation statements)

References 32 publications

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“…Our results indicate that SH (with or without manure) produced significantly higher (p < 0.05) dry shoot biomass (range 10.7 to 5.4 Mg ha −1 ) than VB (with or without manure; range 5.0 to 1.9 Mg ha −1 ) for both growing seasons (Table 1). Consequently, SH biomass produced 33% more C than VB treatments throughout the experiment [40]. As a non-wood Our results indicate that SH (with or without manure) produced significantly higher (p < 0.05) dry shoot biomass (range 10.7 to 5.4 Mg ha −1 ) than VB (with or without manure; range 5.0 to 1.9 Mg ha −1 ) for both growing seasons (Table 1).…”

Section: Background Soil Characteristics Climatic Conditions and Cove...mentioning

confidence: 72%

“…The VB treatment also received higher biomass contribution in season 1 than VBM (~9% higher), which may have contributed to significantly higher levels of inorganic N. It is apparent that at this sampling time (two months after termination and first PM application), N from CC residue and PM application was in various stages of decomposition, and N was being utilized by the carambola tree, as it was readily available. Generally, we saw that VB/VBM residue had a significantly lower C:N ratio than SH [40], which enhanced N cycling from VBM treatments soon after CC incorporation. This pattern can be seen again at the October 2019 sampling time, where the VBM-treated soils had significantly higher levels of inorganic N than all other treatments (6.23, p < 0.05), which was a reflection of PM addition and the low C:N ratio of the residue contributing to higher levels of N mineralization.…”

Section: Soil Inorganic Nitrogenmentioning

confidence: 80%

“…Twenty-seven trees were treated with an organic composted fertilizer amendment (5N-3P-2K USDA Organic Certified poultry manure), and the other 27 trees did not receive any fertilizer treatments. Details about the experimental timeframe and treatments can be found in our other published work [40].…”

Section: Experimental Designmentioning

confidence: 99%

“…As a non-wood Our results indicate that SH (with or without manure) produced significantly higher (p < 0.05) dry shoot biomass (range 10.7 to 5.4 Mg ha −1 ) than VB (with or without manure; range 5.0 to 1.9 Mg ha −1 ) for both growing seasons (Table 1). Consequently, SH biomass produced 33% more C than VB treatments throughout the experiment [40]. As a non-wood fiber crop, the SH stem can become strong and woody in its later growth stages, providing higher C additions over time [48].…”

Section: Background Soil Characteristics Climatic Conditions and Cove...mentioning

confidence: 99%

“…As such, on average throughout our experiment, SH leaf material had a C:N ratio of 11.05, while stem material had a C:N of 32.44, which explains the higher carbon inputs to the system. Additional information on carbon inputs and accumulation related to cover crop biomass from this study can be found in our previously published work [40].…”

Section: Background Soil Characteristics Climatic Conditions and Cove...mentioning

confidence: 99%

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Influence of Leguminous Cover Crops on Soil Chemical and Biological Properties in a No-Till Tropical Fruit Orchard

Freidenreich

Dattamudi

et al. 2022

Land

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South Florida’s agricultural soils are traditionally low in organic matter (OM) and high in carbonate rock fragments. These calcareous soils are inherently nutrient-poor and require management for successful crop production. Sunn hemp (SH, Crotalaria juncea) and velvet bean (VB, Mucuna pruriens) are highly productive leguminous cover crops (CCs) that have shown potential to add large quantities of dry biomass to nutrient- and organic-matter-limited systems. This study focuses on intercropping these two CCs with young carambola (Averrhoa carambola) trees. The objective was to test the effectiveness of green manure crops in providing nutrients and supplementing traditional fertilizer regimes with a sustainable soil-building option. Typically, poultry manure (PM) is the standard fertilizer used in organic or sustainable production in the study area. As such, PM treatments and fallow were included for comparison. The treatments were fallow control (F), fallow with PM (FM), sunn hemp (SH), SH with PM (SHM), velvet bean (VB), and VB with PM (VBM). Sunn hemp and VB were grown for two summer growing seasons. At the end of each 90-day growing period, the CCs were terminated and left on the soil surface to decompose in a no-till fashion. The results suggest that SH treatments produced the greatest amount of dry biomass material ranging from 48 to 71% higher than VB over two growing seasons. As a result, SH CCs also accumulated significantly higher amounts of total carbon (TC) and total nitrogen (TN) within their dry biomass that was added to the soil. Sunn hemp, SHM, and FM treatments showed the greatest accumulation of soil OM, TC, and TN. Soil inorganic N (NH₄⁺ + NO3- + NO2) fluctuated throughout the experiment. Our results indicate that generally, VB-treated soils had their highest available N around 2 months post termination, while SH-treated soils exhibited significantly higher N values at CC termination time. Sunn hemp + PM (SHM)treatments had highest soil N availability around 4 months after CC termination. Soil enzyme activity results indicate that at CC termination, SHM exhibited the highest levels of β-1-4- glucosidase and β-N-acetylglucosaminidase among all treatments. Overall, SH, SHM, and FM treatments showed the greatest potential for supplementing soil nutrients and organic matter in a no-till fruit production setting.

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Section: Background Soil Characteristics Climatic Conditions and Cove...mentioning

confidence: 72%

Section: Soil Inorganic Nitrogenmentioning

confidence: 80%

Section: Experimental Designmentioning

confidence: 99%

Section: Background Soil Characteristics Climatic Conditions and Cove...mentioning

confidence: 99%

Section: Background Soil Characteristics Climatic Conditions and Cove...mentioning

confidence: 99%

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Influence of Leguminous Cover Crops on Soil Chemical and Biological Properties in a No-Till Tropical Fruit Orchard

Freidenreich

Dattamudi

et al. 2022

Land

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Effect of burning of evergreen savin juniper and herbaceous patches on soil: Seed banks, chemical and biological properties

Erfanzadeh,

Ansari,

Jafari

et al. 2023

Global Ecology and Conservation

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Estimation of greenhouse gas emissions during the cultivation of industrial hemp (Cannabis sativa L.) in different temperature regimes

Danilova,

Gordeev,

Gilmutdinova

et al. 2023

E3S Web of Conf.

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The emission of carbon dioxide from the soil is an urgent problem, as it not only contributes to climate change, but also affects the reduction of the carbon pool in the soil, which negatively affects its fertility. Cultivation of crops with fast growth, high biomass and atmospheric carbon fixation capacity is effective in terms of reducing soil carbon dioxide emissions and organic carbon storage. The purpose of this work was to evaluate greenhouse gas emissions from the cultivation of industrial hemp (Cannabis sativa L., 1753) in different temperature regimes – 15ºС, 20ºС and 30ºС. Soil without plants was used as a control. The respiration activity of the soil microbial community was assessed on the 1st, 7th, 14th, 28th, 42nd, 56th, 70th, 84th and 98th days of incubation. Biomass of plants was measured on the 98th day. It was established that there were no differences in the respiration activity of the control soil and the soil under industrial hemp (Cannabis sativa L., 1753) at the beginning of the experiment, however, from the 14th day, the respiration activity was significantly lower in the soil without plants. The influence of the temperature regime on respiration activity was established after 56 days of the experiment. The influence of the temperature regime of vegetation on the morphometric parameters of hemp has been established: the largest biomass of plants was found at a colder incubation temperature (15ºС). It has been established that the emission of greenhouse gases from the soil during the cultivation of industrial hemp (Cannabis sativa L., 1753) is higher compared to pure soil and depends on the temperature regime.

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Soil Respiration and Carbon Balance Under Cover Crop in a no-Till Tropical Fruit Orchard

Cited by 5 publications

References 32 publications

Influence of Leguminous Cover Crops on Soil Chemical and Biological Properties in a No-Till Tropical Fruit Orchard

Influence of Leguminous Cover Crops on Soil Chemical and Biological Properties in a No-Till Tropical Fruit Orchard

Effect of burning of evergreen savin juniper and herbaceous patches on soil: Seed banks, chemical and biological properties

Estimation of greenhouse gas emissions during the cultivation of industrial hemp (Cannabis sativa L.) in different temperature regimes

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