Response to Nitrogen of Sweet Pearl Millet and Sweet Sorghum Grown for Ethanol in Eastern Canada

Thivierge, Marie‐Noëlle; Chantigny, Martin H.; Bélanger, Gilles; Séguin, Philippe; Bertrand, Annick; Vanasse, Anne

doi:10.1007/s12155-014-9558-x

Cited by 22 publications

(22 citation statements)

References 52 publications

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“…The juice ˚Brix values were similar to those reported elsewhere [13] [22]. The positive response to N in sugar content in 2014 is in line with increase in water soluble sugars with N fertilizer reported earlier [30]. The relatively high quantitative values for soluble sugar in 2014 compared to 2015 may be due differences in rainfall amounts.…”

Section: Discussionsupporting

confidence: 88%

Nitrogen Fertilizer and Panicle Removal in Sweet Sorghum Production: Effect on Biomass, Juice Yield and Soluble Sugar Content

Kering¹,

Temu²,

Rutto³

2017

JSBS

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Alternative and renewable bio-based energy sources are gaining prominence worldwide. Sweet sorghum is currently being evaluated throughout the world because its stem juices are rich in sugars that can be directly fermented to ethanol. In this two-year study, sweet sorghum varieties; Dale, Theis, Topper 76-6, and M81E (Obtained from Mississippi State University Experiment Station, MS) and CHR-SW8 (Obtained from Chromatin Inc., IL) were used. Nitrogen (N) fertilizer rates of 0, 40, 80 or 120 kg•N•ha −1 were applied to experimental units. The experiment was a randomized complete block design with treatments in a split-split plot arrangement with three replications. Nitrogen rate was the main plot, cultivar as sub-plot, and panicle removal as sub-plot. Results showed that N application increased fresh stem yield, juice volume, but had minimal effect on juice soluble sugar concentration. Compared to controls, application of ≥40 kg•N•ha −1 increased fresh yield and juice by >60% and 10%, respectively. There were also variety differences in harvested fresh biomass, juice volume and ˚Brix, and soluble sugar content. Dale and Theis consistently showed lower sucrose compared to other varieties over the two years. Panicle removal during early reproductive phase increased ˚Brix, sucrose and total sugar content in all varieties. Across the two years of study, panicle removal increased ˚Brix by more than 10%, sucrose and total sugar increased by more than 20%. Selection of varieties that produce high juice volume with high sugar content and strategies to inhibit seed formation may result in improved juice quality.

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Section: Discussionsupporting

confidence: 88%

Nitrogen Fertilizer and Panicle Removal in Sweet Sorghum Production: Effect on Biomass, Juice Yield and Soluble Sugar Content

Kering¹,

Temu²,

Rutto³

2017

JSBS

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“…and sweet sorghum [Sorghum bicolor (L.) Moench] in eastern Canada is now well established (Bouchard et al 2011;Leblanc et al 2012;dos Passos Bernardes et al 2015;Thivierge et al 2015a). The nutritive attributes of sweet pearl millet were shown to be affected by nitrogen (N) fertilization in a study conducted in eastern Canada (Leblanc et al 2012); however, the effect of N fertilization on the nutritive value of sweet sorghum and of the effect of organic N sources on the nutritive value of sweet sorghum and sweet pearl millet are not known.…”

Section: Introductionmentioning

confidence: 99%

“…The nutritive attributes of sweet pearl millet were shown to be affected by nitrogen (N) fertilization in a study conducted in eastern Canada (Leblanc et al 2012); however, the effect of N fertilization on the nutritive value of sweet sorghum and of the effect of organic N sources on the nutritive value of sweet sorghum and sweet pearl millet are not known. Thivierge et al (2015aThivierge et al ( , 2015b recently reported the dry matter (DM) yield and N uptake response of sweet sorghum and sweet pearl millet to N fertilization but they did not provide any information on the nutritive value. The current study is a continuation of Thivierge et al (2015aThivierge et al ( , 2015b with the objective of determining the response of several nutritive attributes of sweet pearl millet and sweet sorghum to (i) increasing mineral N fertilizer rates, (ii) mineral vs. organic N sources, and (iii) a single vs. a split application of mineral N fertilizer.…”

Section: Introductionmentioning

confidence: 99%

“…Thivierge et al (2015aThivierge et al ( , 2015b recently reported the dry matter (DM) yield and N uptake response of sweet sorghum and sweet pearl millet to N fertilization but they did not provide any information on the nutritive value. The current study is a continuation of Thivierge et al (2015aThivierge et al ( , 2015b with the objective of determining the response of several nutritive attributes of sweet pearl millet and sweet sorghum to (i) increasing mineral N fertilizer rates, (ii) mineral vs. organic N sources, and (iii) a single vs. a split application of mineral N fertilizer.…”

Section: Introductionmentioning

confidence: 99%

“…Mean daily temperatures from seeding to harvest ranged from 18.6°C to 21.9°C across the four site-years, while cumulated rainfall was in the range of 188-390 mm. A detailed description of the two experimental sites is presented in Thivierge et al (2015a). A randomized complete block design with a split-plot restriction with two species as the main plots and eight N fertilization treatments as the subplots was used with four replicates.…”

Section: Introductionmentioning

confidence: 99%

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