Defining Fertilization Strategies for Sorghum (Sorghum bicolor (L.) Moench) Production Under Sudano-Sahelian Conditions: Options for Late Basal Fertilizer Application

Ganyo, Komla Kyky; Muller, Bertrand; Ndiaye, Mamadou; Gaglo, Espoir Koudjo; Guisse, Aliou; Adam, Myriam

doi:10.3390/agronomy9110697

Cited by 12 publications

(13 citation statements)

References 32 publications

(38 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Research conducted in the North central region (NCR) has identified forage sorghum as the feedstock for energy (lignocellulosic to ethanol or biogas), with the most potential in this region [2][3][4]. Because forage sorghum is highly tolerant to heat and drought stress [5], requires low water input due to high-water use efficiency [6,7], and can be grown on marginal land with lower fertilizer input [8,9]. It is well suited to semi-arid conditions [10,11].…”

Section: Introductionmentioning

confidence: 99%

Phenotyping a Diverse Collection of Forage Sorghum Genotypes for Chilling Tolerance

et al. 2020

View full text Add to dashboard Cite

Forage sorghum (FS) (Sorghum bicolor (L.) Moench) is a warm-season biomass crop used as forage for hay or silage with the potential to become a bioenergy feedstock or for dual-purpose (forage and energy). The objective of this study was to screen potential forage sorghum genotypes for increased chilling tolerance and biomass productivity. Seventy-one genotypes of FS were first ranked for high to low vigor index under controlled conditions at 24, 12, and 10 °C. Field experiments were also conducted on a subset of 12 genotypes in Fargo and Hickson, ND, USA, in 2017 and 2018, using two different seeding dates: early (10 May) and late (27 May). Field emergence index values were greater for the late-seeding compared with the early seeding date. Under field conditions, seed mortality and biomass yield were affected by the seeding date and biomass yield correlated with emergence index and normalized vegetative index. Chemical composition of forage sorghum biomass was not affected by the seeding dates. The results of this study suggest that some forage sorghum genotypes carry genetic traits for increased chilling tolerance and produce greater biomass yield when seeded earlier than normal, which could allow for breeding chilling tolerance into forage sorghum.

show abstract

Section: Introductionmentioning

confidence: 99%

Phenotyping a Diverse Collection of Forage Sorghum Genotypes for Chilling Tolerance

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Results of our study suggested that application near the time of planting is more effective use of N compared with winter application. Further studies might be required to evaluate N application during the growing season (emergence to heading time) compared to at planting, based on positive results for late application reported by Ganyo et al (2019).…”

Section: Discussionmentioning

confidence: 99%

“…Further studies might be required to evaluate N application during the growing season (emergence to heading time) compared to at planting, based on positive results for late application reported by Ganyo et al. (2019).…”

Section: Discussionmentioning

confidence: 99%

“…(2018) concluded that the negative impacts of water stress and nutrient deficiency could be mitigated by supplementing irrigation and N fertilization. In environmental conditions prone to low and variable rainfall, late fertilizer application at sorghum heading resulted in greater yield (Ganyo et al., 2019). Results of our study suggested that application near the time of planting is more effective use of N compared with winter application.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Nitrogen fertilizer source, rate, placement, and application timing effect on sorghum (grain and forage) and corn grain yields

Holman,

Ruiz Diaz,

Obour

et al. 2024

Agrosystems Geosci & Env

View full text Add to dashboard Cite

Identifying the limiting nutrient, fertilizer source, rate, placement, additives, and timing of application are critical components of fertilizer management. The objective of this study was to quantify the impact of nitrogen (N) fertilizer source, rate, placement method, additives, application timing, and environment on yields of grain sorghum, forage sorghum [Sorghum bicolor (L.) Moench], and corn (for grain, Zea mays L.). Independent field experiments were conducted at 13 different environments in Kansas from 2008 through 2013 on grain sorghum, forage sorghum, and corn. Treatments were an incomplete factorial combination of four fertilizer placement methods, three fertilizer types, five fertilizer additives, three fertilizer application times, and six fertilizer rates that varied by location and across years. Results showed grain and forage sorghum yields responded to N fertilizer in environments that were not extremely dry (<136 mm) or wet (>651 mm). Corn responded to N fertilizer application only in high‐precipitation environments. For grain sorghum, where rate × placement × source × additive interaction was significant, broadcast application of urea (source) at high rates (67–134 kg N ha−1), with summer application timing, or with additive in winter (with environmentally smart nitrogen [ESN]) resulted in up to 43% greater yield compared with application of urea‐ammonium nitrate (UAN; source) and surface band (placement) at 67 kg ha−1 without additives. In the one site‐year where forage sorghum responded to fertilizer application, forage yields with preplant application of UAN at 56–140 kg ha−1 were 164% greater than the control. For corn, application of either urea or UAN fertilizer, UAN in coulter or surface band, with ESN blend, applied at planting, and at highest rates (160 kg ha−1) resulted in best yields compared with the alternatives and 110% greater yield compared with the unfertilized control. We concluded that fertilizer rate is an important management component as it consistently affected yield regardless of crop considered. Fertilizer placement and timing have crop‐specific importance as they were significant for only corn, but the main effect of additives (N stabilizers) was not significant for any of the crops. Environment and crop type influenced crop response to N fertilizer rate, timing, placement, and additives.

show abstract

“…Combined with rainfall period, the split application of N fertilizer is an appropriate strategy to improve the grain yield and reduce the input required by sorghum. Fertilization rate and application timing have a significant effect on the growth of sorghum (Ganyo et al., 2019). However, the effect of the application of N fertilizer on different crops, especially in studies focusing on yield increase, varies widely (Abad et al., 2003; Amiri et al., 2014; Blandino et al., 2015; Velasco et al., 2012; Xue et al., 2016).…”

Section: Introductionmentioning

confidence: 99%

Effects of nitrogen application strategy and planting density optimization on sorghum yield and quality

Yang

Zhou

et al. 2021

Agronomy Journal

View full text Add to dashboard Cite

Nitrogen and planting density are two key factors affecting sorghum [Sorghum bicolor (L.) Moench] yield. In this study, two dwarf sorghum cultivars were used to analyze the effects of nitrogen and planting density on the yield and quality of sorghum in northern China. The experiment adopted a two-factor, split-zone design with the main plots assigned to three nitrogen application strategies, including all nitrogen applied at the sowing stage (N1), one-third nitrogen applied at the sowing stage and two-thirds nitrogen applied at the jointing stage (N2), and all nitrogen applied at the jointing stage (N3). The subplots were assigned to four planting densities of 20 × 10 4 (D1), 25 × 10 4 (D2), 30 × 10 4 (D3), and 35 × 10 4 plants ha −1 (D4). The results showed that N2 improved significantly the leaf area index, chlorophyll content, and net photosynthetic rate, and the number of grains per panicle and yield were significantly higher than that of the N1 and N3 treatments. Under the same density, the N2 and N3 increased the plant height. Under the same nitrogen, D3 significantly increased the yield. The combination of density and nitrogen was significantly correlated with grain number per panicle and yield. The protein content increased, and the starch content decreased by applying N3 at the jointing stage.The grain yields and grain number per plant were significantly affected by nitrogen application strategy, planting density, and their interaction. The N2D3 was the recommended planting density and nitrogen combination.Abbreviations: D1, planting density of 20 × 10 4 plants ha −1 ; D2, planting density of 25 × 10 4 plants ha −1 ; D3, planting density of 30 × 10 4 plants ha −1 ; D4, planting density of 35 × 10 4 plants ha −1 ; N1, all N fertilizer applied at sowing; N2, one-third N fertilizer applied at sowing and two-thirds applied at the jointing stage; N3, all N fertilizer applied at the jointing stage.

show abstract

Defining Fertilization Strategies for Sorghum (Sorghum bicolor (L.) Moench) Production Under Sudano-Sahelian Conditions: Options for Late Basal Fertilizer Application

Cited by 12 publications

References 32 publications

Phenotyping a Diverse Collection of Forage Sorghum Genotypes for Chilling Tolerance

Phenotyping a Diverse Collection of Forage Sorghum Genotypes for Chilling Tolerance

Nitrogen fertilizer source, rate, placement, and application timing effect on sorghum (grain and forage) and corn grain yields

Effects of nitrogen application strategy and planting density optimization on sorghum yield and quality

Contact Info

Product

Resources

About