Influência do espaçamento e da população de plantas de sorgo sacarino em diferentes épocas semeadura

Fernandes, Pedro Gonçalves; May, A.; Coelho, Fábio Cunha; Abreu, Marina Chamon; Bertolino, Karina Mendes

doi:10.1590/s0103-84782014000600004

Cited by 15 publications

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References 4 publications

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“…Likewise, FERNANDES et al (2014) evaluated the effect of BRS 506 sweet sorghum plants arrangement in two crop years (normal and late seasons), when the spacing ranged from 0.5 to 0.8m between rows, and plant population ranged from 80,000 to 140,000 plants ha -1 , and found that the seeding in normal season resulted in higher yield of fresh weight of stems and fresh weight of total biomass per cultivated area, and 0.5m row spacing resulted in higher total biomass yield in the two crop years studied.…”

Section: Resultsmentioning

confidence: 99%

Plant population and row spacing on biomass sorghum yield performance

et al. 2015

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Section: Resultsmentioning

confidence: 99%

Plant population and row spacing on biomass sorghum yield performance

et al. 2015

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“…According to Fernandes et al (2014), the reduction of row spacing for the sorghum crop results in agronomic gains of great importance for the ethanol production. On the other hand, in relation to plant population, the result does not always indicate an effect on the main production variables, due to the environmental variation and the different row spacings evaluated.…”

Section: Palavras-chavementioning

confidence: 99%

Row spacing, plant density, sowing and harvest times for sweet sorghum1

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et al. 2017

Pesqui. Agropecu. Trop.

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Along with sugarcane, which is the main crop used for ethanol production, the sweet sorghum is a promising agronomic and industrial alternative for cultivation in water-stress regions. This study aimed at assessing the row spacing (0.70 m, 0.80 m and 0.90 m) and plant density (80,000 plants ha-1; 100,000 plants ha-1; 120,000 plants ha-1; and 140,000 plants ha-1) for the BRS 511 sorghum cultivar, combined with sowing and harvest times. A split-plot experimental design, in complete randomized blocks, with four replications, was used. The analyzed variables were plant height, stem diameter, shoot fresh and dry matter, broth volume and total soluble solids (ºBrix). The results showed isolated effects of plant density on plant height and stem diameter, as well as effects of row spacing on total fresh mass and broth volume. The most efficient productive effect for the sweet sorghum was observed in populations lower than 120,000 plants ha-1 and row spacing inferior to 0.80 m, associated with harvest at 120 days after sowing.

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“…The average yield of irrigated treatments was 63.98 t ha -1 , a value within the productivity range reported by Pereira Filho et al (2013) for different sorghum cultivars, and higher than the average yield quoted by EMBRAPA (2012), of 50 t ha -1 . Fernandes et al (2014) obtained an average yield of 60.97 t ha -1 with the BRS 506 genotype in harvest condition.…”

Section: Resultsmentioning

confidence: 96%

Energy Balance of Irrigated and Rainfed Sorghum Production

et al. 2017

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ABSTRACT:The objective of this study was to evaluate the yield and energy balance of four sorghum genotypes in irrigated and rainfed crops. The experiment was conducted in an irrigation and drainage unit at the Federal University of Grande Dourados (UFGD), in Dourados, Mato Grosso do Sul state (Brazil). The experimental design was a randomized complete block design with split plots (with and without irrigation), testing four genotypes (BRS 506, CV 007, CV 147, and EJ 7281) with four replicates (32 plots). Irrigation provided yield increase in all four genotypes. The respective yield increases were 85.89%, 71.82%, 64.28%, and 63.36% for genotypes EJ 7281, BRS 506, CV 147, and CV 007. The energy efficiency (produced/ used ratio) was on average 3.5 under irrigation, and 2.8 for rainfed crops. These results indicate the lack of competition between sorghum and sugarcane, being the first an alternative for off-season. Irrigation increased productivity, leading to an increase in yield and, consequently, in the amount of extracted energy. Yield gains in response to irrigation were more pronounced for genotype EJ 7281. There was a positive impact of irrigation on the energy balance of the four genotypes, increasing energy efficiency.

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Influência do espaçamento e da população de plantas de sorgo sacarino em diferentes épocas semeadura

Abstract: Infl uência do espaçamento e da população de plantas de sorgo sacarino em diferentes épocas semeadura.Ciência Rural, v.44, n.6, jun, 2014. 975Infl uência do espaçamento e da população de plantas de sorgo sacarino em diferentes épocas semeadura

Cited by 15 publications

References 4 publications

Plant population and row spacing on biomass sorghum yield performance

Plant population and row spacing on biomass sorghum yield performance

Row spacing, plant density, sowing and harvest times for sweet sorghum1

Energy Balance of Irrigated and Rainfed Sorghum Production

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