Abstract
No-till (NT) farming minimizes disturbance to agricultural ecosystems and regulates the water cycle in dryland agriculture. This study investigated the interactive effects of tillage practices and nitrogen (N) application on soybean ( Glycine max L.) photosynthesis and yield to optimize N management in NT systems. Field experiments (2023–2024) in Shihezi, Xinjiang, employed a split-plot design with tillage (conventional tillage, CT; no-till, NT) as main plots and N rates (0, 105, 150, 195 kg N ha - ¹; denoted N0, N1, N2, N3) as subplots, generating eight treatments (CTN0, CTN1, CTN2, CTN3, NTN0, NTN1, NTN2, NTN3). The NTN2 system significantly increased soil water storage (SWS) and soil total nitrogen (STN) relative to NTN0 (P < 0.05), enhanced soybean leaf area index (LAI) during R4-R6 stages, and improved SPAD values, net photosynthetic rate (Pn), and stomatal conductance (Gs), ultimately boosting grain yield (GY) by 75.7–83.4% versus NTN0 (P < 0.05). Crucially, N2 application mitigated tillage-induced constraints, enabling NT to achieve yields comparable to CTN2 (P > 0.05). Thus, integrating no-till with 150 kg N ha - ¹ optimizes soybean productivity and resource efficiency in arid northwestern China.
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Claims 9
Claim · model-written summary
NTN2 increased soil water storage (SWS) relative to NTN0.
- Taxon
- soybean
Glycine maxt0 - Treatment
- NTN2e0
- Outcome
- soil water storage (SWS)e0
- Direction
- increasede0
- Comparator
- NTN0e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The NTN2 system significantly increased soil water storage (SWS) and soil total nitrogen (STN) relative to NTN0 (P < 0.05)”
t0“soybean”
Claim · model-written summary
NTN2 increased soil total nitrogen (STN) relative to NTN0.
- Taxon
- soybeanGlycine maxt0
- Treatment
- NTN2e0
- Outcome
- soil total nitrogen (STN)e0
- Direction
- increasede0
- Comparator
- NTN0e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The NTN2 system significantly increased soil water storage (SWS) and soil total nitrogen (STN) relative to NTN0 (P < 0.05)”
t0“soybean”
Claim · model-written summary
NTN2 enhanced soybean leaf area index in R4–R6.
- Taxon
- soybeanGlycine maxe0
- Organ / stage
- R4-R6 stagese0
- Outcome
- leaf area index (LAI)e0
- Direction
- enhancede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“enhanced soybean leaf area index (LAI) during R4-R6 stages”
t0“soybean”
Claim · model-written summary
NTN2 improved SPAD values.
- Taxon
- soybeanGlycine maxt0
- Outcome
- SPAD valuese0
- Direction
- improvede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“improved SPAD values, net photosynthetic rate (Pn), and stomatal conductance (Gs)”
t0“soybean”
Claim · model-written summary
NTN2 improved net photosynthetic rate (Pn).
- Taxon
- soybeanGlycine maxt0
- Outcome
- net photosynthetic rate (Pn)e0
- Direction
- improvede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“improved SPAD values, net photosynthetic rate (Pn), and stomatal conductance (Gs)”
t0“soybean”
Claim · model-written summary
NTN2 improved stomatal conductance (Gs).
- Taxon
- soybeanGlycine maxt0
- Outcome
- stomatal conductance (Gs)e0
- Direction
- improvede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“improved SPAD values, net photosynthetic rate (Pn), and stomatal conductance (Gs)”
t0“soybean”
Claim · model-written summary
NTN2 raised soybean grain yield 75.7–83.4% relative to NTN0.
- Taxon
- soybeanGlycine maxt0
- Outcome
- grain yield (GY)e0
- Direction
- boostinge0
- Value
- 75.7–83.4%e0
- Comparator
- NTN0e0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“boosting grain yield (GY) by 75.7–83.4% versus NTN0 (P < 0.05)”
t0“soybean”
Claim · model-written summary
Under N2, no-till yield was comparable with conventional tillage.
- Taxon
- soybeanGlycine maxt0
- Treatment
- NTe0
- Outcome
- yieldse0
- Direction
- comparablee0
- Qualifier
- N2 applicatione0
- Comparator
- CTN2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N2 application mitigated tillage-induced constraints, enabling NT to achieve yields comparable to CTN2 (P > 0.05).”
t0“soybean”
Claim · model-written summary
The authors recommend no-till with 150 kg N ha - ¹ for soybean productivity and resource efficiency.
- Taxon
- soybeanGlycine maxt0
- Treatment
- no-till with 150 kg N ha - ¹e0
- Outcome
- soybean productivity and resource efficiencye0
- Setting
- arid northwestern Chinae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“integrating no-till with 150 kg N ha - ¹ optimizes soybean productivity and resource efficiency in arid northwestern China.”
t0“soybean”
The same questions in other papers
tillage · yield · Glycine max (soybean)Positive and negative results
125 papers in the same direction as this paper · 264 in the opposite direction
- positive
- positive
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