Impact of soil cover systems on soil quality and organic production of yacon

Silva, Diego Mathias Natal da; Venturim, C. H. P.; Capucho, Martha Elisa O. Valory; Oliveira, Fábio Luiz de; Mendonça, Eduardo de Sá

doi:10.1016/j.scienta.2018.03.024

Cited by 15 publications

(10 citation statements)

References 34 publications

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“…The crop experience only about 120 d of favorable conditions before harvest. Based on the results of Silva et al (2018b), in the present region, optimal crop growth and root development occurred from 120 to 180 d of the cycle. Kamp et al (2019a) likewise emphasize that yacon needs about 200 d under satisfactory conditions to achieve optimal yields.…”

Section: Discussionmentioning

confidence: 86%

Developing row spacing and planting density recommendations for yacon (Smallanthus sonchifolius) in tropical highland conditions

Carvalho

Pedrosa

Oliveira

et al. 2021

Chil. j. agric. res.

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Yacon (Smallanthus sonchifolius [Poepp.] H. Rob., Asteraceae) is an Andean plant being explored as a functional food, due to high concentrations of fructooligosaccharides (FOS), a natural sweetener capable of reducing blood lipids and glucose levels, supporting prevention of chronic diseases, such as diabetes. Yacon commercial production is still being established, thus cropping practices and their impact on profitability are yet poorly explained. Improved planting recommendations are demanded, as it affects crop yield. In this background, a field trial was conducted to determine row spacing and plant populations for yacon production in tropical highland areas. The experimental design was a randomized complete block, in a split-plot scheme, where blocks were three row spacings (0.8, 1.0 and 1.2 m) and subplots covered three spacings between plants (0.4, 0.5 and 0.6 m), with four replicates. At harvest time, evaluations on accumulation of dry mass in the plant and tuber root production data (number, weight, total productivity, and per class) were made. Profitability indicators were estimated (gross income, operational profit, and benefit-cost ratio). Data suggest productive and economic variations among tested planting configurations, as an example higher productivity (31.5 t ha -1 ) and positive benefit-cost ratio (2.51) when using 1.0 m between rows and 0.4 m between plants for the conditions tested. These results point out the prospect to select better crop management practices for yacon, cutting costs, and increasing yield. Another key find was yacon's capacity to overcome intense drought and temperature stress, not previously documented for this crop. Therefore, yacon is a new crop with potential to boost farming income through crop diversification.

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Section: Discussionmentioning

confidence: 86%

Developing row spacing and planting density recommendations for yacon (Smallanthus sonchifolius) in tropical highland conditions

Carvalho

Pedrosa

Oliveira

et al. 2021

Chil. j. agric. res.

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“…The environmental temperature and, consequently, the soil temperature, besides being able to modify plant metabolism, change soil moisture dynamics in the soil-plant system, which directly interferes with plant growth (Kirkham, 2005;Teodoro et al, 2011). Silva et al (2018b) showed that yacon had better development and production, with lower temperature conditions and increased soil moisture, in different cover crops strategies.…”

Section: Resultsmentioning

confidence: 99%

“…These variations in productive yield are attributed to issues related to environmental interference, especially temperature (Silva et al, 2018b) and water availability (Sumiyanto et al, 2012), as well as management, such as the season (Silva et al, 2018a), planting depth, nutrition, and spacing, among others (Seminário et al, 2003).…”

mentioning

confidence: 99%

Planting methods and depths for the yacon (Smallanthus sonchifolius) crop

Quaresma¹,

Oliveira

Amaral

et al. 2020

Rev. Colomb. Cienc. Hortic.

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Crop management is necessary in sprouting, cycle and productivity of most plants of commercial interest. However, recommendations and information are scarce for yacon cultivation, mainly regarding the possible interferences of planting method and depth in the crop development and production. Therefore, the objective was to study the influence of the planting methods and depths on yacon tuberous roots development and production in high altitude conditions. The experiment was a randomized complete block design, with four replications, in a subdivided plots scheme. The plots consisted of three planting methods (groove, pit and ridge) and subplots characterized by four planting depths (5, 10, 15, and 20 cm). Evaluations were carried out from the sprouting process of the rhizophores to the yield of tuberous roots. The planting methods in a pit and ridge had lower seedling mortality rates (27.5 and 20.2% lowers than grooves) and higher yields of tuberous roots (31.2 and 21.4% higher than grooves). The planting depths of 5 and 10 cm of the rhizophores were shown to be the most suitable for yacon cultivation for the three planting methods.

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“…Solar energy can also be used to develop other kinds of technologies, such as soil solarisation technology (solar heating). Soil solarisation aims to improve soil properties and controls the soil-borne disease by improving soil water and temperature conservation (Cerdà et al, 2016;da Silva et al, 2018;Kanaan et al, 2018).…”

Section: Introductionmentioning

confidence: 99%