Crambe grain yield and oil content affected by spatial variability in soil physical properties

Marins, Aracéli Ciotti de; Reichert, José Miguel; Secco, Deonir; Rosa, Helton Aparecido; Veloso, Gustavo Vieira

doi:10.1016/j.rser.2017.08.003

Cited by 23 publications

(14 citation statements)

References 57 publications

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“…Furthermore, study approaches used for agricultural crops can be adapted or improved for eucalyptus. In particular, opportunities are related to tillage in compacted areas by forest harvesting, by previously defining different soil compaction states in the field, such as performed for agricultural crops (Secco et al, 2009), considering spatial variability in soil physical properties (Silva et al, 2003;Marins et al, 2018); short-and long-term tillage (Veiga et al, 2008(Veiga et al, , 2009(Veiga et al, , 2010Reichert et al, 2016c) and cropping systems effects (Awe et al, 2015;Cecagno et al, 2016;Ambus et al, 2018;Reichert et al, 2022); refinement of plant available water as affected by soils and tillage, using existing pedotranfer functions (Vaz et al, 2005;Reichert et al, 2009Reichert et al, , 2020b or by developing improved ones, as well as via soil water balance (Reichert et al, 2021d), forest hydrology (Ferreto et al, 2021a) or catchment water-budget fluxes (Reichert et al, 2017bEbling et al, 2021;Ferreto et al, 2021b;Valente et al, 2021).…”

Section: Research Opportunitiesmentioning

confidence: 99%

Best tillage practices for eucalyptus growth and productivity: A review on the Brazilian experience

Santos¹,

Reichert²

2022

Revista Brasileira De Ciência Do Solo

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Section: Research Opportunitiesmentioning

confidence: 99%

Best tillage practices for eucalyptus growth and productivity: A review on the Brazilian experience

Santos¹,

Reichert²

2022

Revista Brasileira De Ciência Do Solo

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“…A seeding rate of about 20 kg ha −1 is recommended if row spacing is below 0.3 m [11,66]. For row spacing above 0.3 m, a seeding rate between 8 and 15 kg ha −1 is adequate [40,62,67].…”

Section: Establishmentmentioning

confidence: 99%

Crambe (Crambe abyssinica Hochst): A Non-Food Oilseed Crop with Great Potential: A Review

et al. 2020

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Crambe (Crambe abyssinica Hochst) is an oilseed crop in the Brassicaceae family. Crambe’s ability to survive in diverse environmental conditions, its unique oil composition, the high oil content, suitability for the production of slip agents for plasticizers, the capacity to be easily included in common crop rotations, and its adaptability to equipment used for small grain cultivation has renewed the interest in this emerging crop. Crambe is considered one of the main sources of erucic acid, which can be up to 60% of its seed oil content. Erucic acid (C22:1) is a fatty acid with industrial importance since it is used to produce erucamide, key ingredient in the plastic industry. Inclusion of crambe into crop rotations can be beneficial because of its short life cycle, low fertility requirements, resistance to pest and diseases, and relative drought tolerance. Currently high erucic acid rapeseed (Brassica napus L.) (HEAR) is the principal source for erucic acid. However, the risk of contaminating food quality rapeseed (i.e., canola) by cross-pollination and the negative impact on climate, due to high inputs, are potential limitations to expand HEAR cultivation. Crambe has thus great potential to, at least, partially replace HEAR as a source of erucic acid, if the current knowledge-gap in agronomic management and crop improvement (seed yield and quality) can be addressed. Seed yield needs to be increased to be able to compete with HEAR. In addition, reducing glucosinolates and fiber in crambe meal may increase its inclusion in monogastrics rations. The objective of this review was to compile and summarize new and existing information on agricultural practices in crambe production and management to identify gaps in knowledge and areas for future research to increase the cultivation of crambe.

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“…The physical characteristics of soil (bulk density, capillary water capacity, total porosity, capillary porosity, and non-capillary porosity) were determined using the bulk density ring method 33 . Soil pH was determined using a pH meter equipped with a calibrated combined glass electrode 30 .…”

Section: Laboratory Analysismentioning

confidence: 99%

Spatial Heterogeneity of Soil Moisture in Red Beds Area and the Associated Driving Factors

Yan

Lin

et al. 2020

Preprint

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Soil moisture is one of key factors which influence crop growth and ecological environment construction. Knowledge on the spatial heterogeneity of soil moisture and the associate driving factors is of great importance for water resources allocation and ecological environment management. The present study investigated the spatial heterogeneity of soil moisture under four land-use types (cropland, forestland, grassland and bare land) in the ecologically degraded of a red beds area which located in the Nanxiong basin, China. Geostatistical and classic statistical methods were used to analyze the spatial variance of soil moisture. In addition, the driving factors which affect the spatial variance were discussed. The geostatistical analysis showed that the Gaussian model is the optimal regression model of semi-variance functions for all these four land-use types, among which the model of cropland and forestland had better fitting results comparing with other land-use types. Moreover, the soil moisture in bare land exhibited intermediate spatial autocorrelation, which was affected by structural and random factors. Using a cross validation method, we found that the precision of the ordinary kriging interpolation (OK) method was better than the inverse distance weighting interpolation (IDW) method, and the OK method more accurately reflected the spatial distribution of soil moisture in all these four land-use types. Furthermore, the spatial heterogeneity of soil moisture was mainly affected by the natural and anthropogenic factors such as structural characteristics of the soil, soil texture, vegetation covered on the surface of the land, local climate, land-use types, and human intervention, among which human intervention is the most important factor.

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Crambe grain yield and oil content affected by spatial variability in soil physical properties

Cited by 23 publications

References 57 publications

Best tillage practices for eucalyptus growth and productivity: A review on the Brazilian experience

Best tillage practices for eucalyptus growth and productivity: A review on the Brazilian experience

Crambe (Crambe abyssinica Hochst): A Non-Food Oilseed Crop with Great Potential: A Review

Spatial Heterogeneity of Soil Moisture in Red Beds Area and the Associated Driving Factors

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