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

Pinnamaneni, Srinivasa R.; Anapalli, Saseendran S.; Fisher, Daniel K.; Reddy, Krishna N.

doi:10.3390/w13111496

Cited by 5 publications

(5 citation statements)

References 31 publications

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“…The current study period was characterized by a variability in meteorological conditions as a result of climate change, resulting in very demanding conditions for crop production in terms of available water for the plants. As expected and previously reported by many authors [13][14][15][16][17]21,27,28], the overall irrigation effect on soybean grain yield was positive but largely depended on the environmental conditions (Table 2). For example, the lack of a significant irrigation effect on the soybean grain yield in the extremely humid A1 growing season was expected because sufficient precipitation makes the irrigation redundant [11].…”

Section: Discussionsupporting

confidence: 89%

“…As water shortages during this period can have a significant negative impact on yield [10][11][12], maintaining production at its present level or increasing it will require precise irrigation scheduling to increase the yield per unit 2 of 13 of irrigation water applied. The literature shows that not only the irrigation scheduling has an impact on the soybean yield [13][14][15][16][17] but different irrigation strategies as well. For example, Marković et al [18] noted a significant increase in the soybean yield in average climatic years within deficit irrigation (60-80% of the field water capacity, FWC), while full irrigation (80-100% of the FWC) significantly increased the grain yield compared to deficit irrigation only during the extremely warm and very dry growing conditions.…”

Section: Introductionmentioning

confidence: 99%

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Environment- and Genotype-Dependent Irrigation Effect on Soybean Grain Yield and Grain Quality

et al. 2022

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This four-year study with four elite soybean lines with different maturities was conducted to investigate the impact of deficit (a field water capacity, or FWC, of 60%) and full irrigation (an FWC of 80–100%) on soybean grain yield and grain quality (grain protein and oil contents and crude protein and oil yields), depending on the environmental conditions and genotype. Overall, the irrigation effect was positive for the grain yield and grain protein content but negative for the grain oil content. The differences between the full and deficit irrigation were only 2.9% for the grain yield, 2.8% for the crude protein yield and 1.7% for the crude oil yield. The results indicate that deficit irrigation could be the best option for optimizing soybean production in environments similar to the tested one. In such conditions, further rationalization of soybean production could be achieved by choosing the C2 genotype (0 maturity group), which, combined with deficit irrigation, had the highest grain, crude protein and crude oil yields.

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Section: Discussionsupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Environment- and Genotype-Dependent Irrigation Effect on Soybean Grain Yield and Grain Quality

et al. 2022

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“…Harvest index was as the ratio of grain yield to total biomass (including grain). as described in the earlier report (Pinnamaneni et al, 2021).…”

Section: Crop Growth Datamentioning

confidence: 85%

Effect of Rye cover crop on weed control, soybean (Glycine max L.) yield and profitability

Pinnamaneni¹,

Anapalli²,

Molin³

et al. 2022

Front. Agron.

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Considerable variations in farm productivity were reported across soils and climates when winter cover crops (CC) were rotated with summer main cash crops. Hence, a three-year field study (2019-2021) was conducted on Dundee silt loam in a humid climate to assess soybean growth and yield, weed control, and profitability under no-till conditions in response to (i) no CC (NC), (ii) winter rye CC rolled when green, followed by soybean planting and desiccation by paraquat (GR) and iii) winter rye CC desiccated using paraquat and rolled followed by soybean planting (BR). No differences in phenological growth stages of soybean were observed among the treatments. Measured leaf area index was comparable among the treatments across the three seasons. The rate of rye CC biomass decay estimated eight weeks after planting (WAP) was much higher than at four WAP. In 2019, at eight WAP plant residue ranged from 29.3% under NC to 52.9% under GR, indicating the paraquat desiccated natural winter vegetation decays faster than the desiccated rye CC biomass. The weed biomass was 72% higher at eight WAP (0.29 Mg ha-1) than that of four WAP (0.17 Mg ha-1) and NC plots had higher weed biomass at both four WAP and eight WAP over CC plots. Field established soybean stand in the GR plots were consistently higher than the NC plots by 8%, 30%, and 22% in 2019, 2020, and 2021, respectively. Soybean yield in NC plot was 13% higher than GR and 15% higher than BR plots in 2019. However, in 2020 and 2021, soybean yield from BR and GR plots was significantly higher than NC plots (10% and 13%, respectively). In the three-year study, net returns from soybean with rye CC (regardless of GR or BR) in the first year was negative. In the second and third year, net returns in GR and BR were positive and comparable to NC. There were no differences in soybean yield and net returns between rye CC rolled green (GR) and rye CC desiccated (BR) prior to planting. These results show that a rye CC–based soybean conservation production system could be an economically a viable choice after the first year with an invaluable potential for carbon sequestration, weed suppression and positive impact on summer soybean productivity.

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“…IWUC and IWUE are the ratios between the irrigation norm (Σm) during the growing season and the increased yield (IY), brought about by the application of irrigation [92,93].…”

Section: Effectiveness Of Measures To Reduce the Effects Of Climate C...mentioning

confidence: 99%

Effectiveness of Measures to Reduce the Influence of Global Climate Change on Tomato Cultivation in Solariums—Case Study: Crișurilor Plain, Bihor, Romania

et al. 2022

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Tomatoes, one of the most appreciated vegetables consumed, are crops well adapted for cultivation in arid and semi-arid conditions, with the success of large yields guaranteed by covering water consumption through irrigation. Solar Pumps—SP are driven by Photovoltaic Panels—PV (SPAPV), eliminating the dependence on electricity or diesel; they are environmentally friendly because they generate carbon-free electricity, and the cost of operation and maintenance is lower. In order to preserve the water administered by drip to the tomato crop grown in solariums, mulching is used. In Husasău de Tinca, in the Crișurilor Plain, the cultivation of tomato varieties without mulching (WM) and with mulching with black foil (MBF) was studied. To answer the question “How effective are water conservation measures in terms of energy independence?”, two variants of SPAPVs, direct pumping (ADP) and storage tank (AST) were simulated. It is proposed to determine the water consumption of tomatoes (ETRo), using the temperatures inside the solarium. In 2016, the average temperatures during the vegetation period with insurance of over 20%, were observed. The specific investment (SI) is 214,795 Euro ha−1 in the case of ADP and respectively 202,990 Euro ha−1 in the case of ATS. The payback period (IPT) is between 2.68 years and 2.53 years for the ADP variant and between 1.63 years and 1.54 years for the ATS variant. The indications for water use and irrigation water use show that in the MBF variant, the water administered by localized irrigation is better utilized than in the WM variant. The novelty of this study is the evaluation of the effectiveness of measures to reduce the effects of global climate change on tomatoes grown in solariums, useful for forecasting and watering restrictions, water consumption is determined from the air temperature measured inside the solarium, with insurance of over 20%. Taking into account the working hypotheses, the distribution of irrigation water in the solarium, with the help of SPAPVs, for tomatoes grown in the MBF variant, and a drip irrigation arrangement with ATS, the energy independence of the farm is ensured, the yields obtained are economically efficient, and the irrigation water is used rationally.

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

Cited by 5 publications

References 31 publications

Environment- and Genotype-Dependent Irrigation Effect on Soybean Grain Yield and Grain Quality

Environment- and Genotype-Dependent Irrigation Effect on Soybean Grain Yield and Grain Quality

Effect of Rye cover crop on weed control, soybean (Glycine max L.) yield and profitability

Effectiveness of Measures to Reduce the Influence of Global Climate Change on Tomato Cultivation in Solariums—Case Study: Crișurilor Plain, Bihor, Romania

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