Abstract
Corn straw incorporation in soil has been regarded as an environment-friendly approach for straw utilization. However, straw incorporation has been a challenge under a cold and dry climate due to slow decomposition. This field study was to use a novel approach to incorporate corn straw into the soil during the fall season with a plastic film cover in an effort to enhance the straw degradation, soil water use efficiency, and corn growth and yield. Two-year field experiments were conducted in northeast China to investigate the effects of four treatments on soil properties and corn growth: (1) straw incorporation with film cover, (2) straw incorporation only, (3) film cover only, and (4) control. Soils and corn plants were collected during the growing season and analyzed for soil temperature and moisture, straw degradation, corn biomass, grain yield, and water use efficiency. Results indicated that straw incorporation with film cover increased grain yield by 53% as compared to straw incorporation only and by 102% to control. The straw decomposition under film cover was 20% faster, significantly higher than that of the straw incorporation treatment. In all cases, soil water content before planting, corn water uptake, and corn water use efficiency under straw incorporation with film cover were significantly higher than straw incorporation and control. Surface film cover resulted in 10-day earlier corn tasseling in compared to treatments without film cover. This field study demonstrated that straw incorporation with film cover would enhance straw degradation in soil, improve soil properties, and increase corn yield and water use efficiency, which could be potentially used as a sustainable soil management practice in northeast China.
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Claims 7
Claim · model-written summary
Straw incorporation with film increased grain yield 53% versus straw alone.
- Treatment
- straw incorporation with film covere0
- Outcome
- grain yielde0
- Direction
- increasede0
- Value
- 53%e0
- Comparator
- straw incorporation onlye0
Not reportedTaxon
Verbatim
e0“straw incorporation with film cover increased grain yield by 53% as compared to straw incorporation only”
Claim · model-written summary
Straw incorporation with film increased grain yield 102% versus control.
- Treatment
- straw incorporation with film covere0
- Outcome
- grain yielde0
- Direction
- increasede0
- Value
- 102%e0
- Comparator
- controle0
Not reportedTaxon
Verbatim
e0“straw incorporation with film cover increased grain yield by 53% as compared to straw incorporation only and by 102% to control.”
Claim · model-written summary
Film cover accelerated straw decomposition by 20% relative to straw incorporation.
- Treatment
- film covere0
- Outcome
- straw decompositione0
- Direction
- fastere0
- Value
- 20%e0
- Comparator
- straw incorporation treatmente0
Not reportedTaxon
Verbatim
e0“The straw decomposition under film cover was 20% faster, significantly higher than that of the straw incorporation treatment.”
Claim · model-written summary
Straw incorporation with film significantly increased soil water content before planting.
- Taxon
- corn
Zea mays subsp. mayse0 - Treatment
- straw incorporation with film covere0
- Outcome
- soil water content before plantinge0
- Direction
- highere0
- Comparator
- straw incorporation and controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soil water content before planting, corn water uptake, and corn water use efficiency under straw incorporation with film cover were significantly higher than straw incorporation and control.”
Claim · model-written summary
Straw incorporation with film significantly increased corn water uptake.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- straw incorporation with film covere0
- Outcome
- corn water uptakee0
- Direction
- highere0
- Comparator
- straw incorporation and controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soil water content before planting, corn water uptake, and corn water use efficiency under straw incorporation with film cover were significantly higher than straw incorporation and control.”
Claim · model-written summary
Straw incorporation with film significantly increased corn water use efficiency.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- straw incorporation with film covere0
- Outcome
- corn water use efficiencye0
- Direction
- highere0
- Comparator
- straw incorporation and controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soil water content before planting, corn water uptake, and corn water use efficiency under straw incorporation with film cover were significantly higher than straw incorporation and control.”
Claim · model-written summary
Film cover advanced corn tasseling by 10 days versus uncovered treatments.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- Surface film covere0
- Outcome
- corn tasselinge0
- Direction
- earliere0
- Value
- 10-daye0
- Comparator
- treatments without film covere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Surface film cover resulted in 10-day earlier corn tasseling in compared to treatments without film cover.”
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