Economics of organically managed and conventional potato production systems in Atlantic Canada

KhakbazanM.,; HenryR.,; HaungJ.,; MohrR.,; PetersR.,; FillmoreS.,; RoddV.,; MillsA.,

doi:10.4141/cjps-2014-050

Cited by 7 publications

(3 citation statements)

References 45 publications

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“…Risk Analysis" section. Annual net revenue (NR) of potato crop at all locations, expressed in CAN$ ha −1 yr −1 , was defined as the revenue remaining after paying for all monetary costs (i.e., seed, fertilizer, chemical, fuel and oil, repairs, transportation, miscellaneous expenses, land taxes, and interest cost on variable inputs), ownership costs on machinery and buildings (depreciation, interest on investment, insurance, and housing), and labor as described by Khakbazan et al (2014Khakbazan et al ( , 2015Khakbazan et al ( , 2016. No allowance was made for interest costs related to land equity.…”

Section: Economic Analysismentioning

confidence: 99%

Economic effect of fall vs. spring plowing of forage on following potato production in Prince Edward Island, Canada

Khakbazan

Nyiraneza

Jiang

et al. 2020

Agrosystems Geosci & Env

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Fall plowing of forage in a typical barley (Hordeum vulgare L.)–forage–potato (Solanum tuberosum L.) rotation in Prince Edward Island (PEI), Canada has led to negative environmental impacts, including soil erosion and nitrate leaching to groundwater. Data from five locations in PEI during 2009–2016 were assessed to determine the effects of delaying plow‐down of forage from early and late fall to spring on economic returns and risk of returns trade‐offs for potato producers. Factors related to fall or spring plowing such as soil erosion, nitrate leaching, planting date, effect on weeds, insects and diseases, potato harvest loss, and labor constraints were quantified. Potato yields were the same for fall and spring plowing; however, combined data for the five experiments showed late fall plowing was preferred over spring plowing for risk‐averse or neutral potato growers. Risk neutral farmers would require receiving between CAN$229 and $836 ha−1 yr−1, depending on yield loss for spring plowing due to delayed seeding, to be indifferent between fall and spring plowing options. Risk‐averse farmers at all levels of risk aversion would require being paid more than $600 ha−1 yr−1 to be indifferent between fall and spring tillage when 4–6% of yield loss for spring plowing due to delayed planting is assumed. Although spring tillage provides reductions in the risk of soil erosion and nitrate leaching, it also affects production risk and uncertainty. Therefore, we recommend farmers plow forage as late as possible in the autumn and replace it with other conservation tillage practices.

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Section: Economic Analysismentioning

confidence: 99%

Economic effect of fall vs. spring plowing of forage on following potato production in Prince Edward Island, Canada

Khakbazan

Nyiraneza

Jiang

et al. 2020

Agrosystems Geosci & Env

Self Cite

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“…A steady supply of organic vegetables must be ensured to meet rising market demands without placing land and water resources at risk. According to Khakbazan et al (2014), organic farming practices have many benefits, including reducing pest infestations, energy inputs, greenhouse gas emissions, and leaching of pesticides into groundwater. This system also improved rhizosphere quality as well as increased employment opportunities.…”

Section: Introductionmentioning

confidence: 99%

Agronomic Responses of Sweet Corn - Peanut Intercropping to Liquid Organic Fertilizer Grown in Different Dosages of Vermicompost

2023

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Applying organic fertilizer and intercropping systems are among the techniques for preserving land sustainability in organic vegetable production systems. In organic vegetable production, the use of liquid organic fertilizer has been suggested in addition to the use of solid organic fertilizer. This study evaluates how growth and yields of sweet corn and peanuts grown utilizing row intercropping respond to different vermicomposting dosages. A factorial experiment is arranged using a split-plot design with three replicates. The main plot is vermicomposting dosages; 5, 10, 15, 20, and 25 Mg/ha, and the sub-plot was the applications of liquid organic fertilizer, not fertilized and fertilized with liquid organic fertilizer. Results show that the application of liquid organic fertilizer elevated plant height and leaf area, length, diameter, and weight of husked ears of sweet corn. Vermicomposting increased plant height, husked ear length, husked ear diameter, and husked ear fresh weight of sweet corn. Twenty Mg/ha is the best dosage for producing sweet corn intercropped with peanuts. However, using vermicompost and liquid organic fertilizers did not increase the growth and yields of peanuts. Evaluation of nutrient uptakes by intercropped crops, sweet corn, and peanut, in organic production systems, should be the subject of further study.

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“…Conventional production aims at maximal crop yields and economical effectivity using industrial fertilizers and pesticides, whereas organic farming provides lower yields of high-quality vegetables and fruits without using agrochemicals [ 22 , 23 ]. Integrated systems produce quality vegetables using ecologically acceptable methods that minimize the input of agrochemicals [ 24 , 25 ]. The amount of bioactive secondary metabolites in plants is affected by differences between organic and conventional growth, especially by soil fertility management [ 26 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Agroecological Conditions on Biologically Active Compounds and Metabolome in Carrot

Koudela

Schulzová

Krmela

et al. 2021

Cells

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Carrot serves as a source of health-beneficial phytochemicals for human diet whose content is affected by agroecological conditions. The effect of conventional, integrated and organic farming on ascorbic acid (AA) and α,β-carotene levels of new carrot cultivars Cortina F1 and Afalon F1 was investigated and their metabolomic profiles were measured by direct analysis in real time ion source coupled with a high-resolution mass spectrometer (DART-HRMS). Cortina and Afalon exhibited high levels of AA and total carotenes under all agroecological conditions tested that fluctuated in broad ranges of 215–539 and 173–456 mg AA.kg–1 dry biomass and 1069–2165 and 1683–2165 mg carotene.kg–1 dry biomass, respectively. The ratio of β- to α-carotene in both cultivars was about 1.3. The most important variable for the PCA and the partial least squares discriminant analysis (PLS-DA) models for ethyl acetate extracts measured in positive and negative ionization mode was 6-methoxymellein (6-MM). Total carotene content and 6-MM levels were higher in the organic carrot compared to the conventional one and were correlated with a higher level of spontaneous infection. Other important compounds identified were sitosterol, hexose and various organic acids including antioxidant ferulic and coumaric acids. The findings allow comparison of metabolomic profiles and the AA and carotene contents of both cultivars with those of other commercially used carrots.

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Economics of organically managed and conventional potato production systems in Atlantic Canada

Cited by 7 publications

References 45 publications

Economic effect of fall vs. spring plowing of forage on following potato production in Prince Edward Island, Canada

Economic effect of fall vs. spring plowing of forage on following potato production in Prince Edward Island, Canada

Agronomic Responses of Sweet Corn - Peanut Intercropping to Liquid Organic Fertilizer Grown in Different Dosages of Vermicompost

Effect of Agroecological Conditions on Biologically Active Compounds and Metabolome in Carrot

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