Assessing irrigation water use efficiency and economy of twin‐row soybean in the Mississippi Delta

Pinnamaneni, Srinivasa R.; Anapalli, Saseendran S.; Reddy, Krishna N.; Fisher, Daniel K.; Quintana-Ashwell, Nicolas E.

doi:10.1002/agj2.20321

Cited by 23 publications

(50 citation statements)

References 33 publications

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“…Plant height, the number of nodes, number of pods per node, and number of seeds per node at harvest were recorded. An AccuPar model LP-80 PAR/LAI(photosynthetically active radiation/leaf area index) Ceptometer sensor (Decagon Devices, Inc., Pullman, WA, USA) was used to measure LAI, as described in [14]. All plant measurements were replicated at five random locations in the plot and used to calculate the standard error (SE) of measurements.…”

Section: Methodsmentioning

confidence: 99%

“…Among the abiotic stresses, flooding ranks second after drought, causing the greatest economic losses to soybean growers [12]. The saturated hydraulic conductivity of clay soils commonly found in MS Delta is low; hence excess springtime rains and rainfall after irrigation often lead to flooding and water logging [13][14][15]. Flooding stress creates an anaerobic or hypoxic environment in the root environment affecting soybean root respiration, nutrient uptake, root growth, nodulation, and nitrogen fixation, finally resulting in a significant reduction in photosynthesis and yield loss and sometimes death of the plants [16].…”

Section: Introductionmentioning

confidence: 99%

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Water Use Efficiencies of Different Maturity Group Soybean Cultivars in the Humid Mississippi Delta

Pinnamaneni

Anapalli

Fisher

et al. 2021

Water

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Introducing alternative cultivars with enhanced water use efficiencies can help alleviate pressure on groundwater for crop irrigations in Mississippi (MS) Delta. A two-year field study was conducted in 2019–2020 to compare the water use efficiencies (WUE) of recently released and pre-released soybean {Glycine max (L.) Merr.} cultivars in maturity group (MG) III (‘P37A78’, ‘LG03-4561-14’), IV (‘Dyna-gro 4516x’, ‘DS25-1, DT97-4290’), and V (‘S12-1362’, ‘S14-16306’) in the MS Delta. The experimental design was a split-plot with cultivar as the first factor and the second factor was water variant irrigation (IR) and no irrigation (RF, rainfed), replicated three times. The MG IV cultivar Dyna-gro 4516x recorded the highest grain yield and WUE: grain yields were 4.58 Mg ha−1 and 3.89 Mg ha−1 under IR and RF, respectively in 2019, and 4.74 Mg ha−1 and 4.35 Mg ha−1 in 2020. The WUE were 7.2 and 6.9 kg ha−1 mm−1, respectively, in 2019 under IR and RF, and 13.4 and 16.9 kg ha−1 mm−1 in 2020. The data reveals that ‘Dyna-gro 4516x’ (MG IV), ‘LG03-4561-14’ (MG III), and ‘P37A78’ (MG III) are best adapted to the early soybean production system (ESPS) in MS Delta region for sustainable production for conserving water resources.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Water Use Efficiencies of Different Maturity Group Soybean Cultivars in the Humid Mississippi Delta

Pinnamaneni

Anapalli

Fisher

et al. 2021

Water

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“…Currently, over 60% of the cotton acreage is irrigated (Kebede et al, 2014). Interestingly enough, planting the same number of seeds in twin-row (TR) (two rows spaced between 18 and 38 cm on seedbeds centered on raised beds spaced between 96 and 102 cm) compared to SR has been reported to enhance yield and net returns in soybean and cotton (Reddy and Boykin, 2010;Pinnamaneni et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Effect of irrigation and planting geometry on cotton fiber quality and seed composition

Pinnamaneni¹,

Saseendran²,

Sui³

et al. 2020

Preprint

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Background: Cotton fiber quality and seed composition play vital roles in the economics of cotton production systems and cotton seed meal industry. The objective of this research was to examine the effects of different levels of irrigation and planting geometries on fiber quality and seed composition of cotton (Gossypium hirsutum L.). A two-year study was conducted in 2018 and 2019 on a Dundee silt loam soil in the Southeast USA with a warm and humid climate. Irrigation treatments were, irrigating every furrow (FI, full irrigation) and alternate furrow (HI, half irrigation), and no irrigation (RF, rainfed), and planting geometries were a single-row (SR) and twin-row (TR) on ridges spaced 102 cm apart. Fiber quality was tested by using the High-Volume Instrument (HVI) and Advanced Fiber Information Systems (AFIS). Seed protein, oil, and fiber were estimated using near-infrared reflectance spectroscopy. Results: The results showed irrigation and planting treatments played a significant role in fiber quality and seed composition. Across irrigation treatments, significant differences were seen in fiber properties, including micronaire, uniformity, upper half mean length (UHML), strength, yellowness, short fiber, upper quartile length (UQL), fineness, maturity ratio, and neps. The micronaire was negatively affected by irrigation as FI-SR, FI-TR, HI-SR, and HI-TR had recorded 11-12% over the RF-SR and TR treatments. The planting geometry played a minor role in determining fiber quality traits like micronaire and nep count. Irrigation treatments recorded significantly lower protein content by 3-4 % than rainfed, while oil content significantly increased by 6-10 %. Conclusions: The results of the study indicate a potential for improving cotton fiber and seed qualities by managing irrigation and planting geometries in cotton production systems in the Mississippi Delta region.

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“…Traditionally, soybean was cultivated on single rows (SR) on raised seedbeds. Many producers in Mississippi and adjoining states in the Midsouth in recent years have shifted from the SR planting to a twin-row (TR) planting geometry (PG) owing to enhanced productivity and operational feasibility [5][6][7][8]. e rows are separated by 102 cm in the SR system, while 25 cm spaced two rows planted on a flattened ridge are separated by 102 cm in the TR system.…”

Section: Introductionmentioning

confidence: 99%

“…Over 60% of soybean acreage is currently irrigated in the Mississippi Delta region to stabilize farm productivity, as the large interseasonal and intraseasonal variability in precipitation during the crop season (April-September) are limiting the yields [9]. Both PG and irrigation are two key crop management practices for optimizing seed yield in the Midsouth [8,10]. However, their effects on seed composition (protein, oil, fatty acids, sugars, and amino acids) in soybean in the Midsouth are limited.…”

Section: Introductionmentioning

confidence: 99%

Effects of Irrigation and Planting Geometry on Soybean (Glycine max L.) Seed Nutrition in Humid Climates

Pinnamaneni

Anapalli

Bellaloui³

et al. 2021

International Journal of Agronomy

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This study investigates the effect of irrigation (FI, all rows-irrigation; HI, alternate row irrigation; RF, rainfed) and planting geometry (PG) (SR, single-row; TR, twin-row) on soybean seed constituents. Results showed that most of these seed components were significantly affected by crop season due to contrasting precipitation and solar radiation patterns, particularly during July-August, coinciding with early reproductive and seed development stages. Both seed protein and oil levels responded positively to irrigation, while most of the amino acids were nonresponsive. The protein content ranged between 36.3 and 37.6% in 2018, while it was between 36.4 and 38.3% in 2019. Total seed oil content varied between 24.2 and 26.1% in 2018 and between 25.3 and 26.5% in 2019. Among amino acids, glycine, alanine, valine, and methionine levels were significantly higher in both FI and HI treatments. Among sugars, only sucrose was higher in response to the RF treatment, and irrigation did not affect both stachyose and raffinose. Oleic acid was higher in RF, while no significant differences were observed for linolenic and linoleic acids. Similarly, seasonal variation was significant for stearic acid content, but the 2019 season had relatively higher accumulation (stearic acid: between 4.1 and 4.5% in 2018 and from 4.6 to 4.9% in 2019). These results indicate that both irrigation and climate during seed development can alter some seed composition constituents and play critical roles in determining seed nutritional qualities.

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Assessing irrigation water use efficiency and economy of twin‐row soybean in the Mississippi Delta

Cited by 23 publications

References 33 publications

Water Use Efficiencies of Different Maturity Group Soybean Cultivars in the Humid Mississippi Delta

Water Use Efficiencies of Different Maturity Group Soybean Cultivars in the Humid Mississippi Delta

Effect of irrigation and planting geometry on cotton fiber quality and seed composition

Effects of Irrigation and Planting Geometry on Soybean (Glycine max L.) Seed Nutrition in Humid Climates

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