Effects of Nitrogen Application on Sweet Sorghum (Sorghum bicolor (L.) Moench) in the Semi-Arid Tropical Zone of India

Uchino, Hiroshi; Watanabe, Takeshi; Ramu, Karri; Sahrawat, K. L.; Marimuthu, S.; Wani, S P; Ito, Osamu

doi:10.6090/jarq.47.65

Cited by 19 publications

(32 citation statements)

References 19 publications

(20 reference statements)

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“…The juice yield volume for M81E was comparable to those found in Mexico and India [27] [28]. It also compares well with those of six varieties and hybrids evaluated in Nebraska [29].…”

Section: Discussionsupporting

confidence: 72%

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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“…The juice yield volume for M81E was comparable to those found in Mexico and India [27] [28]. It also compares well with those of six varieties and hybrids evaluated in Nebraska [29].…”

Section: Discussionsupporting

confidence: 72%

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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“…Application of 90 kg N ha -1 had 50, 35 and 18 % increases in net returns compared to 0, 30 and 60 kg N ha -1 , respectively. Similarly, Uchino et al (2012) reported that the net income, as estimated from cane fresh weight and grain dry weight, increased with increase in N rates up to 90 kg N ha -1 . Further increase in N rates did not significantly affect productivity or income, but instead caused severe lodging at harvest in the plots with 150 kg N ha -1 .…”

Section: Economicsmentioning

confidence: 99%

Nitrogen response and water use efficiency of sweet sorghum cultivars

Sawargaonkar

Patil

Wani

et al. 2013

Field Crops Research

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ABSTRACTwas also significantly higher than that from NTJ 2 (US$ 415 ha -1 ) and ICSV 93046 (US$ 539 ha -1 ). All cultivars responded to applied N up to 150 kg ha -1 ; however beyond 90 kg ha -1 N rate, the increase in yield was insignificant. Estimated N use efficiency (NUE) values indicated that 90 kg N ha -1 was an optimum N level for sweet sorghum crop. Simulated soil water balance components revealed that reduction in total transpiration due to water stress was 20 to 45% compared to the no-stress. In case of water use efficiency, CSH 22 SS showed the highest economic returns per unit volume of water input. Based on these results, it is concluded that sweet sorghum hybrid CSH 22 SS at 90 kg N ha -1 is the best remunerative combination for maximizing yield, economic returns and resource use efficiency.

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“…In addition, Olugbemi and Ababyomi [27] examined different treatment of nitrogen fertilizer on the growth and ethanol yield of four sweet sorghum varieties and found that the application of 120 kg N/ha was the best for ethanol production. There are also several research studies on optimizing the nitrogen requirements of sweet sorghum for various environments and soil types [20][21]. The applied doses on sugarcane were important on the yield and ethanol production in Brazil [28].…”

Section: Discussionmentioning

confidence: 99%

“…Reddy et al [22] also studied the effects of N input on sweet sorghum growth. Uchino et al [20] reported that the amount of N from 90 to 120 kg/ha was the optimum for ethanol productivity, but the Table 6. Effects of micronutrient fertilizers on stem yield, sugar content and ethanol production of sweet sorghum.…”

Section: Discussionmentioning

confidence: 99%

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Effects of Fertilizers on Biomass, Sugar Content and Ethanol Production of Sweet Sorghum

Xuan¹,

Phuong²,

Khanh³

2017

Biomass Volume Estimation and Valorization for Energy

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Sweet sorghum (Sorghum bicolor) is a promising alternative crop for bioethanol production in developing countries. However, to extend the cultivative area of this crop, it needs to develop an appropriate growing protocol for farmers. This chapter describes the examination of different doses of fertilizers combined with manure and micronutrients, in various applied times, on biomass, sugar content and ethanol production of sweet sorghum. It was observed that the application of 90 N + 90 P 2 O 5 + 60 K 2 O provided maximum stem yield and optimum contents of sugar and ethanol yield, however nontreatment of any among P, P 2 O 5 and K 2 O caused significant reduction of biomass and ethanol production. Higher fertilization >90 N may provide greater productivity of this crop but it may cause lodging and economic deficit for farmers in developing countries. It was also found that the applied times of fertilization should be at 3-4 to 7-8 leaf stage. In contrast, when the fertilization was as close to the flowering stage caused remarkable reduction of stem yield and ethanol production. The supplementation of (NH4) 2 MO 7 O 2 .4H 2 O at 5 kg/ha provided an increase of 10-12 tons/ha of stem yield and a remarkable enrichment of ethanol production. Findings of this study are useful for farmers and agricultural extensionists to promote biomass and ethanol productivity of this crop for bioethanol production. This research also highlights a greater possibility of exploiting sweet sorghum cultivation in infertile and hilly, abandoned areas for ethanol production.

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Effects of Nitrogen Application on Sweet Sorghum (Sorghum bicolor (L.) Moench) in the Semi-Arid Tropical Zone of India

Cited by 19 publications

References 19 publications

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

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

Nitrogen response and water use efficiency of sweet sorghum cultivars

Effects of Fertilizers on Biomass, Sugar Content and Ethanol Production of Sweet Sorghum

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