Improving the Nitrogen Cycling in Livestock Systems Through Silvopastoral Systems

Sarabia, Lucero; Solorio, F.J.; Ramírez, Luis; Ayala, A.; Aguilar, Carlos Javier Segui; Ku, Ja-Hwan; Almeida, Camila Mansur de; Cassador, Rafael; Alves, B. J. R.; Boddey, Robert M.

doi:10.1007/978-981-13-8660-2_7

Cited by 11 publications

(10 citation statements)

References 90 publications

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“…In this case, the cover function involves reducing raindrop impact and wind action on soil particles by increasing soil cover through litter and pruning. The most widely held view is that trees in agroforestry systems can improve soil quality mainly by biological nitrogen (N) fixation and increasing the amounts of aboveground and belowground organic matter inputs (Isaac & Borden, 2019;Sarabia et al, 2020). There are a number of benefits that are directly related to soil quality including preventing soil erosion through surface litter cover and under story vegetation (Akdemir et al, 2016;Béliveau et al, 2017), improving water infiltration (Sahin et al, 2016), increasing soil moiture (Cardinael et al, 2017;Feliciano et al, 2018), maintaining soil fertility (Liu et al, 2018), enhancing water dynamics (Ling et al, 2017;Hasselquist et al, 2018), conserving soil biodiversity (Torralba et al, 2016), improving soil microbial biomass (Buyer et al, 2017) and mitigation of climate change by carbon sequestration (Newaj et al, 2016;Hasselquist et al, 2018).…”

Section: Most Of the Adoption Practices Of Agroforestry Among Smallhomentioning

confidence: 99%

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Influence of Duration of Agroforestry on Physico-Chemical Soil Quality Parameters in Machakos County, Kenya

2020

JASETD

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The role of agroforestry in improving soil quality is well appreciated. However, there is debate as to how duration of agroforestry practice affects soil quality especially in the tropical region of Sub Saharan Africa where adoption of the practice is fairly recently. Therefore, objective this study was to investigate the influence of duration of agroforestry on physico-chemical soil quality parameters. The study was conducted using survey research design from a sample of 73 individual farmers, selected using stratified and random sampling. Soils were sampled from adopters and non adopters using soil auger. At least five sub-samples of soils were collected from each of the farmers and the soil mixed to get an integrated soil sample for analysis. The soil were packaged in two-kg khaki papers and taken to the laboratory for further physical attributes (sand, clay, silt and bulk density) and chemical analyses (pH, TN, TP, TOC, C/N and C/P). The exchangeable bases (K, Ca, Mg and Na) as well as micronutrients (Mn, Cu, Fe and Zn) were also analyzed. The results indicated that proportion of sand particles was significantly (P < 0.05) higher among non adopters compared to adopters while silt and bulk density was significantly (P < 0.05) higher among the adopters compared to the non adopters. Sand particle decreased with increasing duration of agroforestry adoption while proportion of silt and bulk density showed a significant increase in tandem to stand duration of agroforestry. The TN, TOC and C/P ratio was significantly (P < 0.05) higher among adopters and increased consistently with age of adoption, while C/N was higher among non adopters and decreased with increasing age of tree stand and duration of agroforestry. The trend in exchangeable bases and mineral contents in the soil were similar where higher concentrations occurred among adopters and displayed an increase with regard to length of adoption of agroforestry. The current study lends support to assertion that duration of agroforestry positively improves soil quality and therefore urges for mass adoption of the agroforestry practice to enhance increased agricultural productivity.

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Section: Most Of the Adoption Practices Of Agroforestry Among Smallhomentioning

confidence: 99%

“…It has also been reported that high levels of phosphorus found in several phosphate fertilizers (e.g. DAP) may increase the concentration of zinc in the soil by interfering with its metabolism in plants and help in the precipitation of zinc in soil (Bhaduri et al, 2017;Lenci et al, 2018;Sarabia et al, 2020).…”

Section: Micro-nutrients In the Soilsmentioning

confidence: 99%

Influence of Duration of Agroforestry on Physico-Chemical Soil Quality Parameters in Machakos County, Kenya

2020

JASETD

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“…Pastures now generally require large quantities of chemical fertilizers, especially nitrogen, in order to maintain forage production throughout the year. However, fertilizers are costly and can have a large impact on surrounding ecosystems [1]. The application of fertilizers to pastures promotes the production of nitrous oxide in soil, a greenhouse gas with 265 times the global warming potential relative to carbon dioxide [2].…”

Section: Introductionmentioning

confidence: 99%

Increase in Milk Yield from Cows through Improvement of Forage Production Using the N2-Fixing Legume Leucaena leucocephala in a Silvopastoral System

Sarabia-Salgado

Solorio‐Sánchez

Ramírez-Avilés

et al. 2020

Animals

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The objective was to evaluate milk production, N2-fixation and N transfer, forage yield and composition (under two cutting intervals) in a silvopastoral system (SPS) with Leucaena leucocephala-Megathyrsus maximus and M. maximus-monoculture (MMM) with crossbred cows in a completely randomized design. Forage yield in the SPS was 6490 and 6907 kg DM ha−1 for cutting intervals (CI) of 35 and 50 days. Forage yield for the MMM was 7284 and 10,843 kg DM ha−1, and forage crude protein (CP) was 29.0% and 26.1% for L. leucocephala, harvested at 35 and 50 days, respectively. CP for the associated M. maximus was 9.9% and 7.8% for CI 35 and 50 days, respectively, and for MMM was 7.4% and 8.4%, harvested at 35 and 50 days. Milk production was 4.7 kg cow−1 day−1 for cows grazing MMM and 7.4 kg cow−1 day−1 under SPS. Nitrogen fixation in L. leucocephala (%Ndfa) was estimated to be 89% and 95%, at 35 and 50 days, with an N2 transfer to the associated grass of 34.3% and 52.9%. SPS has the potential to fix and transfer important amounts of N2 to the associated grass, and increase forage CP content and milk production.

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“…The combustion of fuels from cars and industries also releases large quantities of N 2 O, so that the World Health Organization (WHO) has identified pulmonary and cardiovascular diseases in children and adults resulting from excessive or continuous exposure to this gas [38]. Large quantities of N 2 O have been recorded in ruminant farms, too [39][40][41]. N 2 O can be emitted from the soil both under aerobic conditions of nitrification and anaerobic conditions of denitrification [42,43].…”

Section: Volatilization Of Ammoniamentioning

confidence: 99%

The Fate of Nitrogen from Soil to Plants: Influence of Agricultural Practices in Modern Agriculture

2021

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Nitrogen is an element present on Earth in different forms, such as gaseous in the air, dissolved in water, immobilized in the soil, as well as biologically bound in all living organisms. The transition from one form to another constitutes the nitrogen cycle. Current agricultural systems rely on nitrogen fertilizers, which represent the reactive or biologically available nitrogen in soil. The excessive presence of reactive nitrogen in the environment has become a threat to soil, water, and air. The increasing demands for food in the world are associated with significant increase in nitrogen fertilizers inputs which threatens the environment and living organisms. The quantities of nitrogen used per capita in developed countries exceed those in developing countries. However, developed countries are regulated by restrictions of fertilizers inputs in agriculture, whereas such regulations do not exist in most of the developing countries. The need to resort to alternative and eco-sustainable strategies to mitigate the pollution related to human activities, is increasingly evident. This review aims to highlight the fate of nitrogen through the main agricultural practices in modern agriculture. Special attention was given to rocket (Eruca sativa) which is considered a nitrate hyper-accumulator and was used as a case study in the present review. Finally, some eco-sustainable solutions, useful for mitigating or preventing the excessive release of harmful forms of nitrogen into the environment, were also discussed.

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Improving the Nitrogen Cycling in Livestock Systems Through Silvopastoral Systems

Cited by 11 publications

References 90 publications

Influence of Duration of Agroforestry on Physico-Chemical Soil Quality Parameters in Machakos County, Kenya

Influence of Duration of Agroforestry on Physico-Chemical Soil Quality Parameters in Machakos County, Kenya

Increase in Milk Yield from Cows through Improvement of Forage Production Using the N2-Fixing Legume Leucaena leucocephala in a Silvopastoral System

The Fate of Nitrogen from Soil to Plants: Influence of Agricultural Practices in Modern Agriculture

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