Abstract
The field experiments were conducted on combining application of chemical nitrogen fertilizer and fresh vetch straw on tobacco under equal nitrogen rates in red soil of upland in Fuyuan County from 2008 to 2009,where vetch(Vicia villosa Roth var.) had been planted as previous crop.Results showed that combining application of fresh vetch straw and chemical nitrogen fertilizer was advantage to improving the biological traits of tobacco,such as length and width of leaves,plant height,stem perimeter of upper leaves harvesting period.Yield of flue-cured tobacco leaves was increased while raising proportion of nitrogen from green manure replacing nitrogen of chemical fertilizer,1863.1 kg/hm2 of the highest yield of high-middle-quality flue-cured tobacco leaves was obtained when 30 % of chemical nitrogen fertilizer had been replaced by nitrogen from green manure,and 25 342.25 Yuan/hm2 of the highest output value of high-middle-quality flue-cured tobacco leaves was received when 15 % of chemical nitrogen fertilizer had been replaced by nitrogen from green manure.
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Claims 4
Claim · model-written summary
Fresh vetch straw with chemical nitrogen improved tobacco leaf size, height and stem perimeter.
- Taxon
- tobacco
Nicotiana tabacume0 - Treatment
- combining application of fresh vetch straw and chemical nitrogen fertilizere0
- Outcome
- length and width of leaves,plant height,stem perimetere0
- Direction
- improvinge0
- Setting
- Fuyuan Countyt1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“combining application of fresh vetch straw and chemical nitrogen fertilizer was advantage to improving the biological traits of tobacco,such as length and width of leaves,plant height,stem perimeter”
t1“Fuyuan County”
Claim · model-written summary
Flue cured leaf yield increased as green manure replaced more chemical fertilizer nitrogen.
- Taxon
- tobaccoNicotiana tabacumt0
- Treatment
- nitrogen from green manure replacing nitrogen of chemical fertilizere0
- Outcome
- Yield of flue-cured tobacco leavese0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yield of flue-cured tobacco leaves was increased while raising proportion of nitrogen from green manure replacing nitrogen of chemical fertilizer”
t0“tobacco”
Claim · model-written summary
Highest high-middle-quality leaf yield was 1863.1 kg/hm2 at 30 % nitrogen substitution.
- Taxon
- tobaccoNicotiana tabacumt0
- Treatment
- 30 % of chemical nitrogen fertilizer had been replaced by nitrogen from green manuree0
- Outcome
- yield of high-middle-quality flue-cured tobacco leavese0
- Direction
- higheste0
- Value
- 1863.1 kg/hm2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“1863.1 kg/hm2 of the highest yield of high-middle-quality flue-cured tobacco leaves was obtained when 30 % of chemical nitrogen fertilizer had been replaced by nitrogen from green manure”
t0“tobacco”
Claim · model-written summary
Highest high-middle-quality leaf output value was 25 342.25 Yuan/hm2 at 15 % nitrogen substitution.
- Taxon
- tobaccoNicotiana tabacumt0
- Treatment
- 15 % of chemical nitrogen fertilizer had been replaced by nitrogen from green manuree0
- Outcome
- output value of high-middle-quality flue-cured tobacco leavese0
- Direction
- higheste0
- Value
- 25 342.25 Yuan/hm2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“25 342.25 Yuan/hm2 of the highest output value of high-middle-quality flue-cured tobacco leaves was received when 15 % of chemical nitrogen fertilizer had been replaced by nitrogen from green manure”
t0“tobacco”
The same questions in other papers
fertilization · growth · Nicotiana tabacum (tobacco)Positive and negative results
153 papers in the same direction as this paper · 27 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- negative
- negative
178 papers more in this group
See all 182 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.