Effects of low-till parabolic subsoiling frequency and furrow irrigation frequency on maize in the Yazoo-Mississippi Delta

Rix, Jacob P.; Lo, Tsz Him; Gholson, Drew M.; Pringle, H. C.; Spencer, G. Dave; Singh, Gurbir

doi:10.1016/j.agwat.2022.107945

Cited by 5 publications

(11 citation statements)

References 17 publications

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“…On the other hand, Rix et al. (2022) found that SS improved furrow irrigation infiltration. Based on previous studies (Bryant et al., 2020; Pringle et al., 2017), the effect of SS depends on environmental and management factors.…”

Section: Resultsmentioning

confidence: 99%

“…A study by Pringle et al (2017) concluded that in 3 out of the 4 years, SS improved maize yields, whether irrigated or non-irrigated. Rix et al (2022) found that in all 5 years, SS improved non-irrigated maize yields. However, the silty clay loam in Pringle et al (2017) and Rix et al (2022) may gain greater benefit from SS than the soils in the present study because the former can be even more prone to forming hardpans and surface seals.…”

Section: Rainfed Maize Yieldmentioning

confidence: 92%

“…Rix et al (2022) found that in all 5 years, SS improved non-irrigated maize yields. However, the silty clay loam in Pringle et al (2017) and Rix et al (2022) may gain greater benefit from SS than the soils in the present study because the former can be even more prone to forming hardpans and surface seals. Additionally, the amount of post-SS soil disturbance was different because raised bed preparation occurred before SS in Rix et al (2022) but after SS in the present study.…”

Section: Rainfed Maize Yieldmentioning

confidence: 92%

“…Additionally, compaction by subsoiler tractor traffic in the same furrow as the ring tests may influence the infiltration results. On the other hand, Rix et al (2022) found that SS improved furrow irrigation infiltration. Based on previous studies (Bryant et al, 2020;Pringle et al, 2017), the effect of SS depends on environmental and management factors.…”

Section: Least Squares Meansmentioning

confidence: 96%

“…However, there are limited data about the potential increase in infiltration or soil water content due to these conservation practices. Examples of practices previously examined in the Mississippi Delta region include polyacrylamide (PAM; McNeal et al, 2017), cereal rye (Secale cereale L.) cover cropping (CR; Bryant et al, 2020;Spencer et al, 2021), furrow diking (FD; Bryant et al, 2019), subsoiling (SS; Pringle et al, 2017;Rix et al, 2022;Tupper, 1977), and no-till (NT) conservation (Spencer et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

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Effects of conservation practices on rainfed maize yield, furrow water infiltration, and soil moisture for surface sealing loam soils in the Yazoo‐Mississippi Delta

Rix,

Lo,

Gholson

et al. 2023

Soil Science Soc of Amer J

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Decades of intense tillage have created the problem of surface sealing in loam soils across the Mid‐South USA and beyond. These soils exhibit low organic matter, poor soil aggregate stability, and ultimately low infiltration rates that decrease rainfed crop productivity and increase irrigation water demand. This research quantified the effects of soil management practices on rainfed maize (Zea mays L.) yield, furrow water infiltration, and soil moisture in Commerce very fine sandy loam and silt loam near Stoneville, Mississippi, USA. The six treatments included conventional tillage (CT), cereal rye (CR; Secale cereale), furrow diking (FD), no‐till (NT), polyacrylamide (PAM), and subsoiling (SS). No other treatment achieved a significantly higher maize grain yield than the CT control treatment in both years consistently. Single‐ring infiltrometer results indicated no significant differences between CT, CR, PAM, and SS in 2022 and between CT and NT in 2021. Neutron attenuation found that total soil water within the top 1 m was not significantly different among CT, FD, and SS on any of the eight measurement dates throughout the 2022 maize reproductive period. However, soil moisture was numerically lower for FD in the late reproductive stages. These findings suggest that environmental factors and other agronomic operations may counteract conservation practices, limiting their effectiveness at reducing irrigation requirements to mitigate groundwater depletion in the Mississippi River Valley Alluvial Aquifer.This article is protected by copyright. All rights reserved

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Section: Resultsmentioning

confidence: 99%

Section: Rainfed Maize Yieldmentioning

confidence: 92%

Section: Rainfed Maize Yieldmentioning

confidence: 92%

Section: Least Squares Meansmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

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Effects of conservation practices on rainfed maize yield, furrow water infiltration, and soil moisture for surface sealing loam soils in the Yazoo‐Mississippi Delta

Rix,

Lo,

Gholson

et al. 2023

Soil Science Soc of Amer J

Self Cite

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Urea ammonium nitrate placement methods, row patterns, and irrigation effects on corn productivity in a humid subtropical region

Vargas,

Singh,

Kaur

et al. 2024

Agrosystems Geosci & Env

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Crop yields are adversely affected by nitrogen (N) losses in humid subtropical regions. This study was conducted to determine whether N dynamics could be manipulated through planting geometry and fertilizer placement. The effects of irrigation (irrigated and rainfed), row pattern (single‐ and twin‐row), and N placement (surface dribble, one knife, two knives, and control) on corn (Zea mays L.) productivity and N use efficiency were investigated at Leland, Mississippi, on a Bosket very fine sandy loam. The total N rate was split into two equal halves of 128 kg N ha−1 at V2 and V6 growth stages. The effects of row pattern and N placement were consistent between irrigated and rainfed environments. There was no interaction between row pattern and N placement nor did row pattern affect corn productivity or N use efficiency parameters. In 2020, when less than 30 mm of rainfall occurred from the first N application through 2 weeks after the last N application, corn grain yield and agronomic N efficiency were not different among placement methods and averaged 11.1 Mg ha−1 and 20.3 kg grain kg−1 fertilizer N, respectively. However, in 2021, applying N with one knife increased corn grain yield by 7% to 14% compared to the two knives and surface dribble application methods; in that year, 235 mm of rainfall occurred from the first N application through 2 weeks after the last N application. Applying N with one knife appears to consistently improve crop productivity and N use efficiency parameters for both irrigated and rainfed environments.

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Simulation of water balance and irrigation strategy of typical sand-layered farmland in the Hetao Irrigation District, China

Feng

Miao

Shi

et al. 2023

Agricultural Water Management

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Effects of low-till parabolic subsoiling frequency and furrow irrigation frequency on maize in the Yazoo-Mississippi Delta

Cited by 5 publications

References 17 publications

Effects of conservation practices on rainfed maize yield, furrow water infiltration, and soil moisture for surface sealing loam soils in the Yazoo‐Mississippi Delta

Effects of conservation practices on rainfed maize yield, furrow water infiltration, and soil moisture for surface sealing loam soils in the Yazoo‐Mississippi Delta

Urea ammonium nitrate placement methods, row patterns, and irrigation effects on corn productivity in a humid subtropical region

Simulation of water balance and irrigation strategy of typical sand-layered farmland in the Hetao Irrigation District, China

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