Abstract
Different agricultural practices may have substantial impacts on crop physiology and yield. However, it is still not entirely clear how multiple agricultural practices such as tillage, biochar and different nutrient applications could influence corn physiology and yield. We conducted a three-year field experiment to study the responses of corn physiology, yield, and soil respiration to six different agricultural practices. The six treatments included conventional tillage (CT) or no tillage (NT), in combination with nitrogen type (URAN or chicken litter) and application method, biochar, or denitrification inhibitor. A randomized complete block design was applied with six replications. Leaf photosynthetic rate, transpiration, plant height, leaf area index (LAI), biomass, and yield were measured. Results showed that different agricultural practices had significant effects on plant leaf photosynthesis, transpiration, soil respiration, height, and yield, but not on LAI and biomass. The average corn yield in the NT-URAN was 10.03 ton/ha, 28.9% more than in the CT-URAN. Compared to the NT-URAN, the NT-biochar had lower soil respiration and similar yield. All variables measured showed remarkable variations among the three years. Our results indicated that no tillage treatment substantially increased corn yield, probably due to the preservation of soil moisture during drought periods.
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Claims 7
Claim · model-written summary
Agricultural practices significantly affected leaf photosynthesis, transpiration, soil respiration, height and yield.
- Taxon
- corn
Zea mays subsp. mayst0 - Treatment
- different agricultural practicese0
- Outcome
- plant leaf photosynthesis, transpiration, soil respiration, height, and yielde0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“different agricultural practices had significant effects on plant leaf photosynthesis, transpiration, soil respiration, height, and yield, but not on LAI and biomass.”
t0“corn”
Claim · model-written summary
Agricultural practices did not significantly affect leaf area index or biomass.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- different agricultural practicese0
- Outcome
- LAI and biomasse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“different agricultural practices had significant effects on plant leaf photosynthesis, transpiration, soil respiration, height, and yield, but not on LAI and biomass.”
t0“corn”
Claim · model-written summary
No tillage with URAN yielded 10.03 ton/ha, 28.9% more than conventional tillage with URAN.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- NT-URANe0
- Outcome
- corn yielde0
- Direction
- moree0
- Value
- 10.03 ton/hae0
- Qualifier
- 28.9%e0
- Comparator
- CT-URANe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The average corn yield in the NT-URAN was 10.03 ton/ha, 28.9% more than in the CT-URAN.”
Claim · model-written summary
No tillage with biochar lowered soil respiration relative to no tillage with URAN.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- NT-biochare0
- Outcome
- soil respiratione0
- Direction
- lowere0
- Comparator
- NT-URANe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to the NT-URAN, the NT-biochar had lower soil respiration and similar yield.”
t0“corn”
Claim · model-written summary
No tillage with biochar produced similar yield to no tillage with URAN.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- NT-biochare0
- Outcome
- yielde0
- Direction
- similare0
- Comparator
- NT-URANe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to the NT-URAN, the NT-biochar had lower soil respiration and similar yield.”
t0“corn”
Claim · model-written summary
All measured variables varied among the three years.
- Taxon
- cornZea mays subsp. mayst0
- Outcome
- All variables measurede0
- Setting
- three yearse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All variables measured showed remarkable variations among the three years.”
t0“corn”
Claim · model-written summary
The authors attributed increased corn yield under no tillage to soil moisture preservation during drought.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- no tillage treatmente0
- Outcome
- corn yielde0
- Direction
- increasede0
- Qualifier
- probably due to the preservation of soil moisture during drought periodse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no tillage treatment substantially increased corn yield, probably due to the preservation of soil moisture during drought periods.”
The same questions in other papers
tillage · yield · Zea mays (maize)Positive and negative results
811 papers in the same direction as this paper · 230 in the opposite direction · 57 reporting no difference from an alternative
- positive
- no effect
- negative
1,095 papers more in this group
See all 1,099 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.