Abstract
ABSTRACT Root lodging significantly affects maize yield and is influenced by both genotypes and soil characteristics. Strip‐till (ST) is a conservative cultivation method that disturbs only the planting strip, leaving the remaining soil undisturbed and covered with maize residues. Less is known about the effect of ST on root lodging. Here, a field experiment was conducted in Northeast China in 2020 and 2021 with 20 maize genotypes to study the relationship between root lodging and soil environment and root system architecture (RSA) under ST. Compared with conventional‐till (CT), in which the maize residues were cleared and the soil was cultivated using a rotary tiller, ST led to a smaller and narrower RSA, with crown root length reduced by 9.5% and crown root biomass reduced by 9.3%. Additionally, inter‐row root expansion angle and width were smaller by 5.3% and 17.3%, respectively. Despite these reductions, the root lodging rate in ST plants was significantly lower than in CT plants, with an absolute decrease of 25.5%. This enhanced resistance is attributed to the increased soil strength in the inter‐row, where the soil bulk density was 10.3% higher and the soil porosity was 10.2% lower in the 0–10 cm layer. Notably, certain maize genotypes, such as ZD958, developed a greater number of fine roots in the compacted inter‐row soil, showing a 66.4% increase compared to XY335 in the 0–12 cm soil layer. This trait contributed to improved resistance to root lodging. In conclusion, ST enhances root lodging resistance and offers opportunities to increase maize yield through optimised management practices, including the selection of high‐yielding cultivars with wide RSA.
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Claims 10
Claim · model-written summary
Strip-till reduced maize crown root length by 9.5% relative to conventional tillage.
- Treatment
- STe2
- Outcome
- crown root lengthe2
- Direction
- reducede2
- Value
- 9.5%e2
- Comparator
- CTe3
- Setting
- Northeast Chinae1
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Maize (Zea mays L.)”
e1“a field experiment was conducted in Northeast China in 2020 and 2021”
e2“ST led to a smaller and narrower RSA, with crown root length reduced by 9.5% and crown root biomass reduced by 9.3%”
e3“Compared with conventional‐till (CT)”
Claim · model-written summary
Strip-till reduced maize crown root biomass by 9.3% relative to conventional tillage.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Maize (Zea mays L.)”
e2“ST led to a smaller and narrower RSA, with crown root length reduced by 9.5% and crown root biomass reduced by 9.3%”
e3“Compared with conventional‐till (CT)”
Claim · model-written summary
Strip-till reduced the inter-row root expansion angle of maize by 5.3% relative to conventional tillage.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Maize (Zea mays L.)”
e2“ST led to a smaller and narrower RSA, with crown root length reduced by 9.5% and crown root biomass reduced by 9.3%”
e3“Compared with conventional‐till (CT)”
e4“root expansion angle and width were smaller by 5.3% and 17.3%”
Claim · model-written summary
Strip-till reduced the inter-row root expansion width of maize by 17.3% relative to conventional tillage.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Maize (Zea mays L.)”
e2“ST led to a smaller and narrower RSA, with crown root length reduced by 9.5% and crown root biomass reduced by 9.3%”
e3“Compared with conventional‐till (CT)”
e4“root expansion angle and width were smaller by 5.3% and 17.3%”
Claim · model-written summary
Root lodging rate was significantly lower under strip-till than under conventional tillage, with an absolute decrease of 25.5%.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Maize (Zea mays L.)”
e5“the root lodging rate in ST plants was significantly lower than in CT plants, with an absolute decrease of 25.5%”
Claim · model-written summary
Soil bulk density in the 0-10 cm layer of the inter-row was 10.3% higher under strip-till.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Maize (Zea mays L.)”
e6“the soil bulk density was 10.3% higher and the soil porosity was 10.2% lower in the 0–10 cm layer”
Claim · model-written summary
Soil porosity in the 0-10 cm layer of the inter-row was 10.2% lower under strip-till.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Maize (Zea mays L.)”
e6“the soil bulk density was 10.3% higher and the soil porosity was 10.2% lower in the 0–10 cm layer”
Claim · model-written summary
The reduced root lodging under strip-till is attributed to increased inter-row soil strength.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Maize (Zea mays L.)”
e7“This enhanced resistance is attributed to the increased soil strength”
Claim · model-written summary
Maize genotype ZD958 produced a 66.4% greater number of fine roots in compacted inter-row soil than XY335 in the 0-12 cm layer.
- Material
- ZD958e1
- Organ / stage
- fine rootse3
- Outcome
- number of fine rootse3
- Direction
- increasee2
- Value
- 66.4%e2
- Comparator
- XY335e2
- Setting
- 0–12 cm soil layere2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Maize (Zea mays L.)”
e1“such as ZD958”
e2“showing a 66.4% increase compared to XY335 in the 0–12 cm soil layer”
e3“developed a greater number of fine roots”
Claim · model-written summary
Optimised management practices, including selection of high-yielding cultivars with wide root system architecture, can raise maize yield under strip-till.
- Outcome
- optimised management practicese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Maize (Zea mays L.)”
e1“through optimised management practices”
The same questions in other papers
tillage · growth · Zea mays (maize)Positive and negative results
195 papers in the same direction as this paper · 81 in the opposite direction · 6 reporting no difference from an alternative
- negative
- positive
- positive
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See all 283 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.