Evaluation of the Use of Energy in the Production of Sweet Sorghum (Sorghum Bicolor (L.) Moench) under Different Production Systems

López-Sandin, Iosvany; Gutiérrez‐Soto, Guadalupe; Gutiérrez-Díez, Adriana; Medina-Herrera, Nancy; Gutiérrez-Castorena, Edgar Vladimir; Závala-García, Francisco

doi:10.3390/en12091713

Cited by 15 publications

(12 citation statements)

References 43 publications

(61 reference statements)

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“…Our results corroborated that the N level and the year of cultivation exerted important effects on durum wheat and sorghum grain production. Cabrera-Ariza et al (2019 andDíaz et al (2018) reported that crop management had important effects on sorghum energy balance. The energy produced varied between 126 and 365 GJ ha -1 depending on crop management, hybrid and growing season.…”

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confidence: 99%

Energy Efficiency of Nitrogen Fertilization in Durum Wheat and Sorghum Grains

Panayotova

Kostadinova

Velinov

2020

PNS

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The objective of this study was to assess the energy efficiency of nitrogen fertilization in durum wheat and sorghum grains in the period 2017-2019. Bulgarian durum wheat variety Predel was studied at a stationary fertilizer trial on soil type Pellic vertisols at the Institute of Field Crops in Chirpan, Bulgaria. Grain sorghum hybrid EC Alize was investigated on the experimental field of the Agricultural University of Plovdiv, Bulgaria, on soil type Mollic Fluvisols. The crops were grown under non-irrigated conditions. The studied nitrogen rates were 0, 60, 120, 180, and 240 kg N.ha-1. In durum wheat, nitrogen was applied two times: one third at sowing, and the rest - as top dressing in the tillering stage. In sorghum, the total nitrogen was applied as pre-sowing fertilization before sowing. The nitrogen fertilizer was applied as NH4NO3. The experimental design was a randomized, complete block design with four replications with a size of experimental plots of 20 m2 for both crops. The energy efficiency of nitrogen fertilization (h) was calculated as the ratio between the received energy from additional grain yield of wheat and sorghum, respectively, and the invested energy from fertilization. It was established that energy efficiency of nitrogen fertilization depended on the nitrogen rate and hydro-thermal conditions during the vegetation period of durum wheat and sorghum. The bioenergy coefficient of durum wheat widely varied from 0.79 (N240 in 2018) to 4.44 (N60 in 2017). The average for the period, the highest value of energy efficiency of nitrogen fertilization was obtained at the low rate N60 The higher nitrogen rate of 240 kg N.ha-1 was slightly effective. Under drought conditions during the vegetation period of sorghum, most effective was the application of rates N120 with the highest energy coefficient of 1.23. The application of 180 kg N.ha-1 to sorghum was the most energy efficient under the favorable hydro-thermal conditions in 2018 and 2019, and the average for the period 2017-2019. A low N60 rate in grain sorghum was inefficient from an energy point of view. Durum wheat showed higher energy efficiency of nitrogen fertilization compared to grain sorghum.

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Energy Efficiency of Nitrogen Fertilization in Durum Wheat and Sorghum Grains

Panayotova

Kostadinova

Velinov

2020

PNS

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“…We compared the obtained results with foreign achievements of sweet sorghum cultivation in the North Caucasus, China, Poland, and Mexico [53][54][55][56]. The energy inputs in sweet sorghum production depend on technology, soil, and climate conditions.…”

Section: International Experiencementioning

confidence: 99%

“…Fertilizer inputs are low compared to foreign practice. If we had 6.6 GJ/ha, that selected countries had the following figures, GJ/ha: China, from 21 to 26 [55]; Poland, around 16.5 [22]; and Mexico, around 15 [53].…”

Section: Energy Efficiency Of Sweet Sorghummentioning

confidence: 99%

“…Agriculture 2021, 11, 695 3 of daily temperature and precipitation on sorghum yield was studied by Kiesel and Lewa dowski [50], Zegada-Lizarazu et al [51], Kotrla and Prčík [52], etc. An evaluation of d ferent production systems was carried out by López-Sandin et al [53]. Jankowski et [54] studied the energy balance of sorghum production in Poland.…”

Section: Introductionmentioning

confidence: 99%

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Energy Assessment of Sorghum Cultivation in Southern Ukraine

et al. 2021

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Global climate changes and fossil fuel reserve depletion are drivers for the search for environmentally friendly renewable energy sources. In Europe, biomass represents the main alternative to fossil fuels. Among energy crops, sorghum is a promising crop for arid regions. The biomass yield and energy efficiency of sorghum (both silage and grain) were studied based on field experiments conducted in Southern Ukraine. The following climate changes were identified: an increase in temperature and a decrease in precipitation. The total energy inputs for sweet sorghum were estimated at 11.256 GJ/ha. The main contributors to the energy inputs are mineral fertilizers (56.99%). The experiment showed that a yield of 40.6 t/ha could be achieved with annual precipitation of 350 mm. The energy efficiency ratio was determined to be 11.18. The total energy inputs for grain sorghum was 16.081 GJ/ha. Its yield (grain) varied from 1.92 to 7.05 t/ha. The energy efficiency ratio of grain sorghum ranged from 2.8 to 16.7.

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“…Energy crops of algae include chlorella, dunaliella, botryococcus, etc. Today, one of the most promising energy crops is sorghum [8,9].…”

Section: Introductionmentioning

confidence: 99%

The use of waste from the production of gravel as fertilizer for cultivation of technical energy crops

Бондаренко

Tverda

Repin

et al. 2021

TAPR

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The object of research is the process of management and treatment of crushed stone production waste. Modern approaches to the disposal of crushed stone production waste are analyzed. It is revealed that crushed stone production wastes are mainly used in the construction industry, and their volumes of use are insufficient to neutralize the impact of dumps on the environment. The chemical composition of crushed stone production wastes was analyzed and an experiment was carried out to determine the possibility of their use as fertilizers for the cultivation of industrial energy crops. For the experiment, an energy crop was chosen – sorghum. Sorghum seeds were placed in two types of soil: regular peat substrate and peat substrate with the addition of rock in a ratio of 60:40. Waste from crushed stone production – rock, which includes: quartzite – 90–98 %, pyrophyllite – 1–9 %, ore mineral – 0.3–1 %. The results of the experiment showed an increase in the biomass of sorghum grown on a peat substrate with the addition of rock, 1.5 times, compared with that grown on a conventional peat substrate. Accordingly, the energy yield of sorghum per hectare of field will also grow by 50 %. In addition to increasing the biomass of sorghum, as a result of the experiment, an increase in the number of secondary and tertiary roots was found when it was grown on a peat substrate with the addition of rock. A more developed root system allows the plant to receive more moisture and nutrients, thereby increasing its endurance and drought resistance. The results obtained can be explained by the positive effect of silica, of which more than 90 % of the rock is composed, on the growth and development of plants. It is proposed to increase the level of environmental safety of mining regions through the use of crushed stone waste as fertilizers for industrial energy crops and the transition to alternative energy sources, in particular biofuels made on the basis of these crops.

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Evaluation of the Use of Energy in the Production of Sweet Sorghum (Sorghum Bicolor (L.) Moench) under Different Production Systems

Cited by 15 publications

References 43 publications

Energy Efficiency of Nitrogen Fertilization in Durum Wheat and Sorghum Grains

Energy Efficiency of Nitrogen Fertilization in Durum Wheat and Sorghum Grains

Energy Assessment of Sorghum Cultivation in Southern Ukraine

The use of waste from the production of gravel as fertilizer for cultivation of technical energy crops

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