Abstract
Mulches combined with drip irrigation techniques have been widely applied in China for higher yield and water use efficiency (WUE). To develop an efficient strategy that can improve maize yield and save water in the North China Plain (NCP), we conducted a two-year field experiment, using transparent plastic film mulching (T), black plastic film mulching (B), and straw mulching (S) and non-mulching (N) for spring maize in 2019 and summer maize in 2020, and high drip irrigation amount (H) and low drip irrigation amount (L) were also considered in 2019. We mainly studied the effects of mulches on soil water content, soil temperature, crop growth rate, grain yield, and water use efficiency (WUE). The results indicated that T and B treatment increased soil water content (SWC) and topsoil temperature. The T treatment promoted the growth rate significantly more than N treatment, by 27.7–43.4% at the early stage in two years. The grain yield under TH treatment was significantly (p < 0.05) higher than that of other treatments, by 9.8–17.4% for spring maize in 2019, and significantly (p < 0.05) higher under both TH and BH than under NH, by 8.9% and 4.7% for summer maize in 2020. There was a significant quadratic parabola relationship between ET and grain yield in 2019, and the correlation between SEAT of 0–10 cm soil depth with grain yield or with biomass was positive. These results indicate that the transparent plastic film with high drip irrigation amount treatment (TH) can be recommended for spring maize, and both transparent and black film mulch treatments (TH and BH) can be recommended for summer maize in the NCP.
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Claims 11
Claim · model-written summary
Transparent plastic mulch increased soil water content and topsoil temperature.
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“T and B treatment increased soil water content (SWC) and topsoil temperature.”
t0“Maize”
Claim · model-written summary
Black plastic mulch increased soil water content and topsoil temperature.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“T and B treatment increased soil water content (SWC) and topsoil temperature.”
t0“Maize”
Claim · model-written summary
Transparent mulch raised early growth rate 27.7–43.4% versus no mulch.
- Treatment
- T treatmente0
- Outcome
- growth ratee0
- Direction
- moree0
- Value
- 27.7–43.4%e0
- Qualifier
- early stage in two yearse0
- Comparator
- N treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The T treatment promoted the growth rate significantly more than N treatment, by 27.7–43.4% at the early stage in two years.”
t0“Maize”
Claim · model-written summary
TH increased spring maize grain yield 9.8–17.4% over other treatments in 2019.
- Treatment
- TH treatmente0
- Outcome
- grain yielde0
- Direction
- highere0
- Value
- 9.8–17.4%e0
- Comparator
- other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The grain yield under TH treatment was significantly (p < 0.05) higher than that of other treatments, by 9.8–17.4% for spring maize in 2019”
Claim · model-written summary
TH increased summer maize grain yield 8.9% over NH in 2020.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significantly (p < 0.05) higher under both TH and BH than under NH, by 8.9% and 4.7% for summer maize in 2020.”
t0“Grain Yield”
Claim · model-written summary
BH increased summer maize grain yield 4.7% over NH in 2020.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significantly (p < 0.05) higher under both TH and BH than under NH, by 8.9% and 4.7% for summer maize in 2020.”
t0“Grain Yield”
Claim · model-written summary
ET and grain yield had a significant quadratic relationship in 2019.
Not reportedCompoundDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was a significant quadratic parabola relationship between ET and grain yield in 2019”
t0“Maize”
Claim · model-written summary
Soil SEAT at 0–10 cm depth was positively correlated with grain yield.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the correlation between SEAT of 0–10 cm soil depth with grain yield or with biomass was positive.”
t0“Maize”
Claim · model-written summary
Soil SEAT at 0–10 cm depth was positively correlated with biomass.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the correlation between SEAT of 0–10 cm soil depth with grain yield or with biomass was positive.”
t0“Maize”
Claim · model-written summary
The authors recommend TH for spring maize in the North China Plain.
- Outcome
- transparent plastic film with high drip irrigation amount treatment (TH)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the transparent plastic film with high drip irrigation amount treatment (TH) can be recommended for spring maize”
Claim · model-written summary
The authors recommend TH and BH for summer maize in the North China Plain.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both transparent and black film mulch treatments (TH and BH) can be recommended for summer maize in the NCP.”
The same questions in other papers
boron atom · soil: physics · Zea mays (maize)Results agree
1 paper in the same direction as this paper
- positive
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.