In-season Accumulation and Partitioning of Macronutrients and Micronutrients in Irrigated Sugar Beet Production

De, Mriganka; Moore, Amber; Mikkelsen, Robert L.

doi:10.5274/jsbr.56.3.56

Cited by 4 publications

(4 citation statements)

References 42 publications

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“…The results obtained in this study partially support our original hypothesis. Previous studies report an influence of nitrogen source not only on yield but also on quality of different crops [26][27][28]. In our study, fertilization with urea improved biomass yield.…”

Section: Discussionsupporting

confidence: 58%

“…However, to build on the findings discussed in this work, further research is necessary to have a better understanding of the influence of nitrogen source when compared over multiple years, soil types, varieties, and agro-climatic locations. On the other hand, other authors, not for hemp, who have worked on a single year, a single cultivar, a single soil type, and a single irrigation system, conclude that their results can be used to support management decisions for improving the production system [28]. Therefore, we believe that even if our results need further investigations, they might give guidelines to the farmers that are called to quickly implement agronomic practices modifications with an aim to mitigate the environmental impacts caused by agriculture.…”

Section: Discussionmentioning

confidence: 99%

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Soil Fertilization with Urea Has Little Effect on Seed Quality but Reduces Soil N2O Emissions from a Hemp Cultivation

et al. 2020

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Multipurpose production of hemp has led to renewed interest for this crop cultivation, especially for human nutrition. To date, no information about the influence of nitrogen source on hemp seed quality is available. Hemp is also used for food and beverages due to its nutritional characteristics. This further use of hemp has led to an increase in hemp-grown areas. Therefore, it is important to get more information on the role of nitrogen on the quality production as well as to evaluate the environmental impact of the cultivation technique. In this work, we evaluate the influence of nitrogen source (i.e., NH4NO3 and urea) on the seed fatty acid composition of an edible hemp as well as on the environment in terms of soil N2O emission. Nitrogen source modified seed quality very little. Even if characterized by a lower acidic profile, seed from plants grown under urea and NH4NO3 had a ω-3/ω-6 ratio (0.3) within the optimal range from the nutritional standpoint, being considered as the optimal proportion for human metabolism and health. Urea fertilization reduced soil N2O emission. Our findings suggest that nitrogen source seems not to influence seed quality and that urea fertilizer might be more climate-friendly than NH4NO3 in terms of greenhouse gas emissions, in an extensive cultivation of hemp for industrial use.

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Section: Discussionsupporting

confidence: 58%

Section: Discussionmentioning

confidence: 99%

Soil Fertilization with Urea Has Little Effect on Seed Quality but Reduces Soil N2O Emissions from a Hemp Cultivation

et al. 2020

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“…The accumulation of Ca by sugar beets in storage roots increases gradually during the growing season. The maximum daily rate of Ca accumulation reaches its maximum before the maximum recorded for the leaves [39]. Its downward trend (as shown in Figure A3) indicates a dilution effect on the Ca content, resulting from the progressively increased root biomass.…”

Section: Figurementioning

confidence: 88%

“…In the presented case, the maximum uptake of Ca was recorded around the 110th day after sowing of sugar beets. This critical date is defined by the date of its maximum rate of daily accumulation in the leaves [39]. The accumulation of Ca by sugar beets in storage roots increases gradually during the growing season.…”

Section: Figurementioning

confidence: 99%

Deficiencies of Secondary Nutrients in Crop Plants—A Real Challenge to Improve Nitrogen Management

2022

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Secondary nutrient (e.g., calcium, magnesium, sulfur) deficiencies in crop plants disturb the nitrogen balance in the plants, thus reducing the overall yield. This hypothesis was analyzed based on the physiological functions of these nutrients, in relation to the uptake and utilization of N, in crop plants. Nitrogen uptake by plants requires a well-developed root system, the size of which depends on the supply of calcium. This process is largely controlled by the content of toxic aluminum in the soil, which can be mitigated through the application of lime and/or gypsum. In humid climates, the excessive uptake of calcium by plants occurs during water shortages; this process significantly interferes with N uptake. Magnesium, which affects plant growth throughout the growing season, can effectively control excessive calcium uptake. Magnesium deficiency can be ameliorated with soil- or foliar-applied fertilizers. These stages define the timing of plant sampling and determination of the N:S ratio, as an indicator of plant nutritional status. The application of Mg, S, or MgS facilitates higher productivity of fertilizer N by narrowing the N:Mg and N:S ratios in plants. The use of secondary nutrients can allow farmers to obtain high yields while reducing both production costs and environmental risks.

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Outputs: Potassium Losses from Agricultural Systems

Goulding

Murrell

Mikkelsen

et al. 2020

Improving Potassium Recommendations for Agricultural Crops

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Potassium (K) outputs comprise removals in harvested crops and losses via a number of pathways. No specific environmental issues arise from K losses to the wider environment, and so they have received little attention. Nevertheless, K is very soluble and so can be leached to depth or to surface waters. Also, because K is bound to clays and organic materials, and adsorbed K is mostly associated with fine soil particles, it can be eroded with particulate material in runoff water and by strong winds. It can also be lost when crop residues are burned in the open. Losses represent a potential economic cost to farmers and reduce soil nutritional status for plant growth. The pathways of loss and their relative importance can be related to: (a) the general characteristics of the agricultural ecosystem (tropical or temperate regions, cropping or grazing, tillage management, interactions with other nutrients such as nitrogen); (b) the specific characteristics of the agricultural ecosystem such as soil mineralogy, texture, initial soil K status, sources of K applied (organic, inorganic), and rates and timing of fertilizer applications. This chapter provides an overview of the main factors affecting K removals in crops and losses through runoff, leaching, erosion, and open burning.

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In-season Accumulation and Partitioning of Macronutrients and Micronutrients in Irrigated Sugar Beet Production

Cited by 4 publications

References 42 publications

Soil Fertilization with Urea Has Little Effect on Seed Quality but Reduces Soil N2O Emissions from a Hemp Cultivation

Soil Fertilization with Urea Has Little Effect on Seed Quality but Reduces Soil N2O Emissions from a Hemp Cultivation

Deficiencies of Secondary Nutrients in Crop Plants—A Real Challenge to Improve Nitrogen Management

Outputs: Potassium Losses from Agricultural Systems

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