Abstract
During the year of 2009 to 2010,a field experiment was conducted to investigate the effects of reduced tillage and straw mulching on yield,water consumption characteristics and water use efficiency( WUE) of wheat /maize intercropping system under different irrigation levels,aiming at providing new ideas for the establishment of efficient water-saving intercropping technical systems. The results showed that the land equivalent ratio( LER) of intercropping was between 1. 46 and 1.56,and the advantage of intercropping was remarkable. Compared to the low and intermediate irrigation levels,the economic yield of mazie under high irrigation level was increased by 44. 4% and 9. 31% in average,and that of wheat under high irrigation level was increased by 10. 22%and 2. 36% in average in intercropping with and without reduced tillage and straw mulching. The average soil water storage before sowing and after harvest stages of wheat /maize intercropping system in 0 ~ 120 cm profile was significantly improved by reduced tillage and straw mulching. Reduced tillage and straw mulching,intercropping,and irrigation level were all the dominant factors affecting water consumption of wheat and maize. The optimum combination to improve WUE of wheat and maize was to adopt the integrated technology of reduced tillage and straw mulching,intercropping,and intermediate irrigation level.
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Claims 8
Claim · model-written summary
Intercropping land equivalent ratio was 1. 46 to 1.56.
- Taxon
- wheat /maize
Triticum aestivum
Zea mayst0 - Outcome
- land equivalent ratio( LER)e0
- Value
- 1. 46 and 1.56e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“land equivalent ratio( LER) of intercropping was between 1. 46 and 1.56”
t0“wheat /maize”
Claim · model-written summary
High irrigation increased maize economic yield by 44. 4% relative to low irrigation.
- Treatment
- high irrigation levele0
- Outcome
- economic yield of maziee0
- Direction
- increasede0
- Value
- 44. 4%e0
- Comparator
- lowe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to the low and intermediate irrigation levels,the economic yield of mazie under high irrigation level was increased by 44. 4% and 9. 31% in average”
t0“maize”
Claim · model-written summary
High irrigation increased maize economic yield by 9. 31% relative to intermediate irrigation.
- Treatment
- high irrigation levele0
- Outcome
- economic yield of maziee0
- Direction
- increasede0
- Value
- 9. 31%e0
- Comparator
- intermediate irrigation levelse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to the low and intermediate irrigation levels,the economic yield of mazie under high irrigation level was increased by 44. 4% and 9. 31% in average”
t0“maize”
Claim · model-written summary
High irrigation increased wheat economic yield by 10. 22% relative to low irrigation.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- high irrigation levele0
- Outcome
- that of wheate0
- Direction
- increasede0
- Value
- 10. 22%e0
- Comparator
- lowe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to the low and intermediate irrigation levels,the economic yield of mazie under high irrigation level was increased by 44. 4% and 9. 31% in average,and that of wheat under high irrigation level was increased by 10. 22%and 2. 36% in average”
t0“wheat”
Claim · model-written summary
High irrigation increased wheat economic yield by 2. 36% relative to intermediate irrigation.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- high irrigation levele0
- Outcome
- that of wheate0
- Direction
- increasede0
- Value
- 2. 36%e0
- Comparator
- intermediate irrigation levelse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to the low and intermediate irrigation levels,the economic yield of mazie under high irrigation level was increased by 44. 4% and 9. 31% in average,and that of wheat under high irrigation level was increased by 10. 22%and 2. 36% in average”
t0“wheat”
Claim · model-written summary
Reduced tillage and straw mulching significantly improved soil water storage.
- Taxon
- wheat /maizeTriticum aestivumZea mayst0
- Treatment
- reduced tillage and straw mulchinge0
- Outcome
- soil water storagee0
- Direction
- improvede0
- Qualifier
- 0 ~ 120 cm profilee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“average soil water storage before sowing and after harvest stages of wheat /maize intercropping system in 0 ~ 120 cm profile was significantly improved by reduced tillage and straw mulching”
t0“wheat /maize”
Claim · model-written summary
Reduced tillage and straw mulching, intercropping and irrigation level affected wheat and maize water consumption.
- Taxon
- wheat /maizeTriticum aestivumZea mayst0
- Treatment
- Reduced tillage and straw mulching,intercropping,and irrigation levele0
- Outcome
- water consumption of wheat and maizee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Reduced tillage and straw mulching,intercropping,and irrigation level were all the dominant factors affecting water consumption of wheat and maize.”
t0“wheat /maize”
Claim · model-written summary
The authors recommend combined reduced tillage, straw mulching, intercropping and intermediate irrigation for WUE.
- Taxon
- wheat /maizeTriticum aestivumZea mayst0
- Outcome
- adopt the integrated technology of reduced tillage and straw mulching,intercropping,and intermediate irrigation levele0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“optimum combination to improve WUE of wheat and maize was to adopt the integrated technology of reduced tillage and straw mulching,intercropping,and intermediate irrigation level”
t0“wheat /maize”
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