Abstract
In order to study the effect of tillage method, sowing date and plant density on population physiological index and morphological trait on maize, a split-plot experiment was carried out. Main plot was tillage method with two levels (conventional tillage vs. deep loosing tillage). The subplots were planting date (25th April, 10th May and 25th May) and density (45 000 plants ha -1 , 67 500 plant ha -1 , 90 000 plant ha -1 ). Results showed that deep loosing could retard the decrease of leaf area index (LAI), crop growth rate (CGR) and dry matter accumulation (DM). Moreover, it was benefit for growth and development after florescence. Significant difference in planting date treatments demonstrated that early sowing was better than medium and late sowing. During reproductive stage, delay in planting decreased the LAI by 12.52%. With density increased, population physiological index raised.
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Claims 5
Claim · model-written summary
Deep loosing retarded decreases in maize leaf area index, crop growth rate and dry matter accumulation.
- Treatment
- deep loosinge0
- Outcome
- leaf area index (LAI), crop growth rate (CGR) and dry matter accumulation (DM)e0
- Direction
- retard the decreasee0
- Comparator
- conventional tillagee1
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results showed that deep loosing could retard the decrease of leaf area index (LAI), crop growth rate (CGR) and dry matter accumulation (DM).”
e1“conventional tillage vs. deep loosing tillage”
t0“Maize”
Claim · model-written summary
Deep loosing benefited maize growth and development after florescence.
- Organ / stage
- after florescencee0
- Treatment
- deep loosinge0
- Outcome
- growth and developmente0
- Direction
- benefite0
- Comparator
- conventional tillagee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results showed that deep loosing could retard the decrease of leaf area index (LAI), crop growth rate (CGR) and dry matter accumulation (DM). Moreover, it was benefit for growth and development after florescence.”
e1“conventional tillage vs. deep loosing tillage”
t0“Maize”
Claim · model-written summary
Early maize sowing was significantly better than medium and late sowing.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant difference in planting date treatments demonstrated that early sowing was better than medium and late sowing.”
t0“Maize”
Claim · model-written summary
Delayed planting reduced maize LAI by 12.52% during the reproductive stage.
- Organ / stage
- reproductive stagee0
- Treatment
- delay in plantinge0
- Outcome
- LAIe0
- Direction
- decreasede0
- Value
- 12.52%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“During reproductive stage, delay in planting decreased the LAI by 12.52%.”
t0“Maize”
Claim · model-written summary
Increasing maize density raised the population physiological index.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With density increased, population physiological index raised.”
t0“Maize”
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sowing time · growth · Zea mays (maize)Positive and negative results
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