Abstract
Abstract Furrow‐irrigated rice ( Oryza sativa L.) is a relatively new production system that has been shown to have increased water‐use efficiency and reduced operational costs. However, due to spatial variations in soil moisture, field studies are necessary to evaluate potential resulting variations in rice growth and yield in the furrow‐irrigated production system. This study was conducted to evaluate the effects of tillage practice (conventional tillage, CT; no‐tillage, NT) and site position (up‐, mid‐, and down‐slope) on aboveground biomass, yield, and plant nutrient uptake from rice grown in a silt‐loam soil in a direct‐seeded, furrow‐irrigated production system in eastern Arkansas. Field research was conducted from May to September during the 2018 and 2019 rice growing seasons. Total aboveground dry matter, vegetative dry matter, and yield were unaffected ( P > .05) by tillage treatment or site position in either growing season. Vegetative tissue nutrient concentrations and uptake were generally at least 10% greater ( P < .05) under CT than NT but did not substantially differ by site position during the drier growing season (2018). During the wetter growing season (2019), vegetative tissue nutrient concentrations and uptake were generally at least 20% greater ( P < .05) at the up‐ than at the mid‐ or down‐slope positions. Results suggest that different approaches, in terms of soil and nutrient management per site position, in combination with tillage practices, may need to be considered for implementation to maximize nutrient uptake and reduce losses, thus improving the agronomic suitability of the furrow‐irrigated rice production system.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 6
Claim · model-written summary
Aboveground and vegetative dry matter and yield were unaffected by tillage in either season.
- Taxon
- rice
Oryza sativae0 - Treatment
- tillage treatmente1
- Outcome
- Total aboveground dry matter, vegetative dry matter, and yielde1
- Direction
- unaffectede1
- Qualifier
- either growing seasone1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Furrow‐irrigated rice ( Oryza sativa L.)”
e1“Total aboveground dry matter, vegetative dry matter, and yield were unaffected ( P > .05) by tillage treatment or site position in either growing season.”
Claim · model-written summary
Aboveground and vegetative dry matter and yield were unaffected by site position in either season.
- Taxon
- riceOryza sativae0
- Treatment
- site positione1
- Outcome
- Total aboveground dry matter, vegetative dry matter, and yielde1
- Direction
- unaffectede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Furrow‐irrigated rice ( Oryza sativa L.)”
e1“Total aboveground dry matter, vegetative dry matter, and yield were unaffected ( P > .05) by tillage treatment or site position in either growing season.”
Claim · model-written summary
Vegetative nutrient concentrations and uptake were generally at least 10% greater under conventional than no tillage in 2018.
- Taxon
- riceOryza sativae0
- Treatment
- CTe1
- Outcome
- Vegetative tissue nutrient concentrations and uptakee1
- Direction
- greatere1
- Value
- at least 10%e1
- Qualifier
- drier growing season (2018)e1
- Comparator
- NTe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Furrow‐irrigated rice ( Oryza sativa L.)”
e1“Vegetative tissue nutrient concentrations and uptake were generally at least 10% greater ( P < .05) under CT than NT but did not substantially differ by site position during the drier growing season (2018).”
Claim · model-written summary
Vegetative nutrient concentrations and uptake did not substantially differ by slope position in 2018.
- Taxon
- riceOryza sativae0
- Treatment
- site positione1
- Outcome
- Vegetative tissue nutrient concentrations and uptakee1
- Direction
- did not substantially differe1
- Qualifier
- drier growing season (2018)e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Furrow‐irrigated rice ( Oryza sativa L.)”
e1“Vegetative tissue nutrient concentrations and uptake were generally at least 10% greater ( P < .05) under CT than NT but did not substantially differ by site position during the drier growing season (2018).”
Claim · model-written summary
Vegetative nutrient concentrations and uptake were generally at least 20% greater uphill than at middle or downhill positions in 2019.
- Taxon
- riceOryza sativae0
- Treatment
- up‐e1
- Outcome
- vegetative tissue nutrient concentrations and uptakee1
- Direction
- greatere1
- Value
- at least 20%e1
- Qualifier
- wetter growing season (2019)e1
- Comparator
- mid‐ or down‐slope positionse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Furrow‐irrigated rice ( Oryza sativa L.)”
e1“During the wetter growing season (2019), vegetative tissue nutrient concentrations and uptake were generally at least 20% greater ( P < .05) at the up‐ than at the mid‐ or down‐slope positions.”
Claim · model-written summary
The authors suggest site-specific soil and nutrient management with tillage to maximize nutrient uptake and reduce losses.
- Taxon
- riceOryza sativae0
- Outcome
- soil and nutrient management per site position, in combination with tillage practicese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Furrow‐irrigated rice ( Oryza sativa L.)”
e1“different approaches, in terms of soil and nutrient management per site position, in combination with tillage practices, may need to be considered for implementation to maximize nutrient uptake and reduce losses”
The same questions in other papers
climate site · nutrient: content · Oryza sativa (rice)Positive and negative results
6 papers in the same direction as this paper · 26 in the opposite direction
- positive
- positive
- positive
29 papers more in this group
See all 33 papers →tillage · nutrient: content · Oryza sativa (rice)Positive and negative results
97 papers in the same direction as this paper · 10 in the opposite direction
- positive
- negative
- negative
104 papers more in this group
See all 108 papers →climate site · yield · Oryza sativa (rice)Positive and negative results
61 papers in the same direction as this paper · 110 in the opposite direction
- positive
- positive
- positive
168 papers more in this group
See all 172 papers →tillage · yield · Oryza sativa (rice)Positive and negative results
141 papers in the same direction as this paper · 587 in the opposite direction
- positive
- positive
- positive
725 papers more in this group
See all 729 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.