Soil loss due to harvesting of peanut and cassava under traditional farming systems: Cost implications of soil nutrient loss

Oshunsanya, O.; Samson, Victor; Yu, H.

doi:10.2489/jswc.2022.00111

Cited by 2 publications

(5 citation statements)

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“…The amount of soil loss shown in this study, justifies the need for soil loss as a result of crop harvesting to be considered an agent of soil degradation, in addition to water erosion. Moreover, continuous soil removal could lead to topsoil depletion, which is a carbon sink, thus reducing the soil's carbon sequestration potential (Oshunsanya et al, 2022a). Although fertilizer application increases soil loss due to crop harvesting, our study does not discourage the use of fertilizer, but encourages that carrot roots should be cleaned thoroughly during harvesting on the field to reduce and mitigate soil loss from the farm.…”

Section: Discussionmentioning

confidence: 93%

“…For instance, Oshunsanya et al (2022b) reported moisture content to have a positive relationship with soil loss due to crop harvesting. In another experiment, Oshunsanya et al (2022a) reported soil moisture content at the time of harvest as a significant factor responsible for the difference in soil loss between peanut and cassava. The increased soil moisture content of the fertilized plots may have resulted from the higher vegetative growth of carrot, which could help provide soil cover, thus reducing water evaporation from the surface.…”

Section: Discussionmentioning

confidence: 99%

“…Also, increase in crop yield could result in an increase in soil loss because total soil loss is a product of crop yield. Several researchers have reported crop yield significantly increases soil loss (Isabirye et al, 2007;Parlak et al, 2016;Oshunsanya et al, 2019;Ityavnongo, 2021 andOshunsanya et al, 2022a). For example, Oshunsanya et al (2019) in a study on soil loss due to yam harvesting, reported fertilizer application increased yam yield and root hair and consequently, soil loss.…”

Section: Discussionmentioning

confidence: 99%

“…Furthermore, it could be inferred from the positive relationship between soil water content and crop yield that soil water content could indirectly influence soil loss. Many researchers have reported soil moisture content at the time of harvest to be a major controlling factor of soil loss from crop harvesting (Ruysschaert et al, 2004;Ruysschaert et al, 2007b;Sumithra et al, 2013;Mwango et al, 2015;Parlak et al, 2021 andOshunsanya et al, 2022a). For instance, Oshunsanya et al (2022b) reported moisture content to have a positive relationship with soil loss due to crop harvesting.…”

Section: Discussionmentioning

confidence: 99%

“…However, soil loss from crop harvesting (SLCH) has received little attention despite its importance and severity. SLCH has been shown in studies to be a significant contributor to soil degradation, particularly in areas where root, tuber, bulb, and pod crops are grown and on flat lands where water erosion is minimal (Oshunsanya, 2016a;Faraji et al, 2017;Parlak et al, 2018;Oshunsanya et al, 2022a). As a result, in order to achieve the United Nations' sustainable development goal of zero hunger and zero land degradation, all land degradation processes, including SLCH, must be identified and understood.…”

Section: Introductionmentioning

confidence: 99%

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Influence of fertilizer application on soil and nutrient loss during carrot harvesting

Samson,

Ibrahim,

Osho

et al. 2024

Egyptian Journal of Agricultural Research

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Soil loss from root crop harvesting is a significant erosion process contributing to soil degradation. While organic fertilization could promote soil structure and reduce soil loss, the variation in the effectiveness of different organic fertilizers vis-a-vis inorganic fertilization remains unclear. Such understanding is critical for adequate soil management for reducing harvest-related soil loss. A two-year field-based study was carried out to compare the effect of two commonly used organic amendments and inorganic fertilizer on carrot yield and harvest-related soil loss. Treatments included a control, inorganic fertilizer, pig manure , and poultry manure; with each manure applied at a rate to supply 60 kg K ha -1 . Compared to the control where the average soil loss for the two years was 1.21 t -1 ha -1 harvest -1 , inorganic fertilization induced a soil loss of 2.70 t -1 ha -1 harvest -1 , while 1.94 t -1 ha -1 harvest -1 and 1.87 t -1 ha -1 harvest -1 of soil was lost under poultry manure and pig manure amendments, respectively. The higher soil loss in the fertilized treatments compared to the control was attributed to the higher crop yields. However, the reduced soil loss in organic amendments compared to the inorganic fertilizer was due to more improved soil aggregation. Also, higher nutrient uptake arising from the increased yield resulted in significant loss of soil nitrogen, phosphorus, potassium, and calcium in the second year. Higher carrot yield due to fertilization is associated with higher soil removal, especially under inorganic fertilization. It is suggested that cleaning carrot roots during harvesting will ensure minimal soil loss.

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Section: Discussionmentioning

confidence: 93%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Influence of fertilizer application on soil and nutrient loss during carrot harvesting

Samson,

Ibrahim,

Osho

et al. 2024

Egyptian Journal of Agricultural Research

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Soil degradation and herbicide pollution by repeated cassava monoculture within Thailand’s conservation region

Popradit,

Nakhokwik,

Robischon

et al. 2023

Preprint

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In a national park in Northeast Thailand, agricultural land has been converted from natural forest by small-scale farmers. To investigate the impact of repeated cassava monoculture on soil, we conducted a five-year (2016–2020) study on the physical and chemical properties of soil in cassava farmland and examined the properties of forest soil as a control. Soil nitrogen, available phosphate and potassium, and bulk density were significantly higher in the farmland than in the forest, whereas organic matter and cation exchange capacity were the opposite. In the farmland, soil nitrogen, electrical conductivity, and bulk density increased significantly, whereas pH and organic matter decreased significantly, indicating that soil degradation progressed during the five years. The use of glyphosate and paraquat herbicides is prohibited within national parks. However, in 2020, glyphosate was detected in farmland soil at levels of up to 5.0 mg kg-1 during both the rainy and dry seasons, and glyphosate (2.5 mg l-1) was detected in stream water from the farmland during the dry season. The use of glyphosate in the farmland was suspected at least in 2020. Soil degradation and herbicide pollution may carry a high risk of causing irreversible changes to the terrestrial ecosystems.

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Soil loss due to harvesting of peanut and cassava under traditional farming systems: Cost implications of soil nutrient loss

Cited by 2 publications

References 0 publications

Influence of fertilizer application on soil and nutrient loss during carrot harvesting

Influence of fertilizer application on soil and nutrient loss during carrot harvesting

Soil degradation and herbicide pollution by repeated cassava monoculture within Thailand’s conservation region

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