Abstract
A 4-year (2005-2008) field experiment was conducted on a typical slope field in Qingshuihe County of Inner Mongolia to study the effects of no tillage with low stubble (NL),no tillage with high stubble (NH),no tillage with low stubble and residues (NLS),no tillage with high stubble and residues (NHS),and conventional tillage (CT) on the soil properties and maize yield. No tillage increased soil microbial biomass C,N,and P,and soil organic matter and nutrient contents. In 2007 and 2008,the microbial biomass and the organic matter and nutrient contents in 0-10 cm soil layer were in order of NHSNLSNHNLCT. During the first three years of no tillage,maize yield was unstable; but in the 4th year,the yield was increased. Path analysis showed that soil total nitrogen,total phosphorus,available phosphorus,and especially microbial biomass carbon had direct effects on maize yield. The results indicated that no tillage was advantageous to the improvement of soil ecological environment and soil fertility in rain-fed farmlands of Inner Mongolia.
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Claims 7
Claim · model-written summary
No tillage increased soil microbial biomass carbon, nitrogen and phosphorus.
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No tillage increased soil microbial biomass C,N,and P,and soil organic matter and nutrient contents.”
e1“and maize yield”
Claim · model-written summary
No tillage increased soil organic matter and nutrient contents.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No tillage increased soil microbial biomass C,N,and P,and soil organic matter and nutrient contents.”
e1“and maize yield”
Claim · model-written summary
In 2007 and 2008, topsoil microbial biomass, organic matter and nutrients ranked NHS, NLS, NH, NL and CT.
- Outcome
- microbial biomass and the organic matter and nutrient contentse0
- Qualifier
- 0-10 cm soil layere0
Not reportedOrgan / stage
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In 2007 and 2008,the microbial biomass and the organic matter and nutrient contents in 0-10 cm soil layer were in order of NHSNLSNHNLCT.”
e1“and maize yield”
Claim · model-written summary
Maize yield was unstable during the first three no-tillage years.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“During the first three years of no tillage,maize yield was unstable;”
Claim · model-written summary
Maize yield increased in the fourth year of no tillage.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“but in the 4th year,the yield was increased.”
e1“years of no tillage,maize yield was unstable”
Claim · model-written summary
Path analysis found direct effects of soil nitrogen, phosphorus and microbial biomass carbon on maize yield.
- Outcome
- maize yielde0
- Qualifier
- soil total nitrogen,total phosphorus,available phosphorus,and especially microbial biomass carbone0
Not reportedSettingDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Path analysis showed that soil total nitrogen,total phosphorus,available phosphorus,and especially microbial biomass carbon had direct effects on maize yield.”
Claim · model-written summary
The authors concluded no tillage improves soil ecology and fertility in rain-fed Inner Mongolia farmland.
- Outcome
- no tillage was advantageous to the improvement of soil ecological environment and soil fertilitye0
- Setting
- Inner Mongoliae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results indicated that no tillage was advantageous to the improvement of soil ecological environment and soil fertility in rain-fed farmlands of Inner Mongolia.”
e1“and maize yield”
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.