Abstract
Poor soil structure and nutrients,excessive exchangeable Na+,high pH as well as low enzyme activities are common in the solonetz,and significantly restrict corn（Zea mays L.）production.Cattle manure application combined with deep tillage is an important management practice that can affect soil physico-chemical properties and enzyme activities as well as corn yield in the solonetz.Field experiments were carried out in a randomized complete block design comprising four treatments:Corn with conventional tillage was used as a control,and corn with manure application combined with deep tillage as well as film mulching and aluminium sulfate were used as the experimental treatments,respectively.The relationship between corn yield and measured soil properties was determined using stepwise regression analysis.Manure application combined with deep tillage management was more effective than conventional tillage for increasing corn yield and for improving soil properties in the solonetz.The highest corn yield was obtained in the treatments with manure application+deep tillage+plastic film mulching(11 472 and 12228 kg ha-1),and increased by 38 and 43%comparing with the control treatment(8343 and8552 kg ha-1)both in the 2013 and 2014 experiments,respectively.Using factor analysis,three factors were obtained,which represented soil fertility status,soil saline-alkaline properties and soil structural properties both in the 2013 and 2014experiments,respectively.Manure and deep tillage management resulted in two distinct groups of soil properties:（1）soils with manure application combined with deep tillage and（2）soils with conventional tillage.Stepwise regression analysis showed that corn yield was significantly and positively correlated to urease and available P,as well as negatively correlated to pH,electrical conductivity（EC）,exchange sodium percentage（ESP）,and bulk density（pb）.We concluded that pb was dominant factor for corn yield on the basis of discriminant coefficient.Manure application combined with d
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Claims 9
Claim · model-written summary
Manure plus deep tillage increased corn yield relative to conventional tillage.
- Taxon
- corn
Zea mays subsp. mayst0 - Treatment
- Manure application combined with deep tillage managemente0
- Outcome
- corn yielde0
- Direction
- increasinge0
- Comparator
- conventional tillagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“corn （Zea mays L.）”
e0“Manure application combined with deep tillage management was more effective than conventional tillage for increasing corn yield and for improving soil properties in the solonetz.”
Claim · model-written summary
Manure plus deep tillage improved solonetz soil properties relative to conventional tillage.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- Manure application combined with deep tillage managemente0
- Outcome
- soil propertiese0
- Direction
- improvinge0
- Comparator
- conventional tillagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“corn （Zea mays L.）”
e0“Manure application combined with deep tillage management was more effective than conventional tillage for increasing corn yield and for improving soil properties in the solonetz.”
Claim · model-written summary
The mulched manure and deep tillage treatment produced 11 472 kg ha-1 corn yield in 2013, 38% above control.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- manure application+deep tillage+plastic film mulchinge1
- Outcome
- corn yielde1
- Direction
- increasede1
- Value
- 11 472e1
- Qualifier
- 2013e1
- Comparator
- control treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“corn （Zea mays L.）”
e1“The highest corn yield was obtained in the treatments with manure application+deep tillage+plastic film mulching(11 472 and 12228 kg ha-1),and increased by 38 and 43%comparing with the control treatment(8343 and8552 kg ha-1)both in the 2013 and 2014 experiments,respectively.”
Claim · model-written summary
The mulched manure and deep tillage treatment produced 12228 kg ha-1 corn yield in 2014, 43% above control.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- manure application+deep tillage+plastic film mulchinge1
- Outcome
- corn yielde1
- Direction
- increasede1
- Value
- 12228 kg ha-1e1
- Qualifier
- 2014e1
- Comparator
- control treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“corn （Zea mays L.）”
e1“The highest corn yield was obtained in the treatments with manure application+deep tillage+plastic film mulching(11 472 and 12228 kg ha-1),and increased by 38 and 43%comparing with the control treatment(8343 and8552 kg ha-1)both in the 2013 and 2014 experiments,respectively.”
Claim · model-written summary
Factor analysis identified three soil-property factors in both years.
- Taxon
- cornZea mays subsp. mayst0
- Outcome
- three factorse2
- Value
- three factorse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“corn （Zea mays L.）”
e2“Using factor analysis,three factors were obtained,which represented soil fertility status,soil saline-alkaline properties and soil structural properties both in the 2013 and 2014experiments,respectively.”
Claim · model-written summary
Manure and deep tillage separated soils into two property groups.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- Manure and deep tillage managemente3
- Outcome
- two distinct groups of soil propertiese3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“corn （Zea mays L.）”
e3“Manure and deep tillage management resulted in two distinct groups of soil properties:（1）soils with manure application combined with deep tillage and（2）soils with conventional tillage.”
Claim · model-written summary
Corn yield correlated positively with urease and available P.
- Taxon
- cornZea mays subsp. mayst0
- Compound
- available Pe4
- Outcome
- corn yielde4
- Direction
- positively correlatede4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“corn （Zea mays L.）”
e4“Stepwise regression analysis showed that corn yield was significantly and positively correlated to urease and available P,as well as negatively correlated to pH,electrical conductivity（EC）,exchange sodium percentage（ESP）,and bulk density（pb）.”
Claim · model-written summary
Corn yield correlated negatively with pH, electrical conductivity, exchange sodium percentage, and bulk density.
- Taxon
- cornZea mays subsp. mayst0
- Outcome
- corn yielde4
- Direction
- negatively correlatede4
- Qualifier
- pH,electrical conductivity（EC）,exchange sodium percentage（ESP）,and bulk density（pb）e4
- Setting
- solonetze0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“corn （Zea mays L.）”
e4“Stepwise regression analysis showed that corn yield was significantly and positively correlated to urease and available P,as well as negatively correlated to pH,electrical conductivity（EC）,exchange sodium percentage（ESP）,and bulk density（pb）.”
e0“Manure application combined with deep tillage management was more effective than conventional tillage for increasing corn yield and for improving soil properties in the solonetz.”
Claim · model-written summary
Bulk density was interpreted as the dominant factor for corn yield.
- Taxon
- cornZea mays subsp. mayst0
- Outcome
- corn yielde5
- Setting
- pbe5
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“corn （Zea mays L.）”
e5“We concluded that pb was dominant factor for corn yield on the basis of discriminant coefficient.”
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See all 3,908 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.