Abstract
Soil tillage practices can affect total nitrogen and yield of summer maize.In order to study the impacts of minimum and no tillage on leaf area index,grain filling rate and crop yield under winter wheat-summer maize cropping system,five tillage systems were adopted in Longkou city,Shandong province.The five tillage practices included conventional tillage without straw return,conventional tillage with straw return,rotary tillage with straw return,serrated disk harrow tillage with straw return,and no-tillge with straw return.Results showed that seed filling rates of summer maize under all tillage practices were well fit to the Logistic equation Y=k/(1+ae~(-bt)).Compared to conventional tillage,serrated disk harrow tillage can improve leaf area index and seed filling rate and increase maize yield by 14.5%.However,no-tillge with straw cover decreased maize yield by 11%.
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Claims 4
Claim · model-written summary
Seed filling rates of summer maize under all tillage practices fitted the Logistic equation.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e1“Results showed that seed filling rates of summer maize under all tillage practices were well fit to the Logistic equation”
Claim · model-written summary
Serrated disk harrow tillage improved leaf area index and seed filling rate compared with conventional tillage.
- Treatment
- serrated disk harrow tillagee2
- Outcome
- leaf area index and seed filling ratee2
- Direction
- improvee2
- Comparator
- conventional tillagee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e2“Compared to conventional tillage, serrated disk harrow tillage can improve leaf area index and seed filling rate and increase maize yield by 14.5%”
Claim · model-written summary
Serrated disk harrow tillage increased maize yield by 14.5% compared with conventional tillage.
- Treatment
- serrated disk harrow tillagee2
- Outcome
- maize yielde2
- Direction
- increasee2
- Value
- 14.5%e2
- Comparator
- conventional tillagee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e2“Compared to conventional tillage, serrated disk harrow tillage can improve leaf area index and seed filling rate and increase maize yield by 14.5%”
Claim · model-written summary
No-tillage with straw cover decreased maize yield by 11%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e3“However,no-tillge with straw cover decreased maize yield by 11%”
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
- no effect
- negative
- no effect
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.