Abstract
This study aims to determine the effect of nitrogen application under wheat straw mulching on pear growth and fruit quality in dryland.From2011 to 2012,the experiment was performed with four nitrogen treatments of different levels,being 1 kg(T1),0.5 kg(T2)and 0.25 kg(T3)and CK(without nitrogen input).Soil properties and leaf chlorophyll contents,vegetative growth,fruit yield and quality traits were analyzed.The results showed that the different N application reduced soil pH value significantly,improved soil calcium and zinc contents.N applications promoted leaf growth.N fertilizer significantly promoted shoot growth,leaf area and leaf weight and chlorophyll contents,with fruit yield of T1,T2,T3 being 25.4%,17.0%,and 11.6%higher than that of CK,respectively.N fertilization decreased fruit soluble sugar,organic acid contents significantly.By contrast,quality parameters such as the fruit hardness,soluble solids,water contents were not significantly different anong treatments.
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Claims 9
Claim · model-written summary
Nitrogen application significantly reduced soil pH.
- Taxon
- pear tree
_Poirier_Fleurs_et_feuilles.jpg?width=60)
Pyrus communist0 - Treatment
- N applicatione0
- Outcome
- soil pH valuee0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Poirier_Fleurs_et_feuilles.jpg?width=500)
Verbatim
e0“different N application reduced soil pH value significantly”
t0“pear tree”
Claim · model-written summary
Nitrogen application improved soil calcium and zinc contents.
- Taxon
- pear treePyrus communist0
- Treatment
- nitrogen ratest0
- Outcome
- soil calcium and zinc contentse0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“improved soil calcium and zinc contents”
t0“Effect of nitrogen rates on pear tree growth”
Claim · model-written summary
Nitrogen fertilizer promoted shoot growth, leaf area and leaf weight.
- Taxon
- pear treePyrus communist0
- Treatment
- N fertilizere0
- Outcome
- shoot growth,leaf area and leaf weighte0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N fertilizer significantly promoted shoot growth,leaf area and leaf weight”
t0“pear tree”
Claim · model-written summary
Nitrogen fertilizer promoted leaf chlorophyll content.
- Taxon
- pear treePyrus communist0
- Treatment
- N fertilizere0
- Outcome
- chlorophyll contentse0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N fertilizer significantly promoted shoot growth,leaf area and leaf weight and chlorophyll contents”
t0“pear tree”
Claim · model-written summary
The 1 kg nitrogen treatment increased fruit yield 25.4% versus no nitrogen.
- Taxon
- pear treePyrus communist0
- Treatment
- 1 kg(T1)e1
- Outcome
- fruit yielde0
- Direction
- highere0
- Value
- 25.4%e0
- Comparator
- CKe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fruit yield of T1,T2,T3 being 25.4%,17.0%,and 11.6%higher than that of CK”
e1“1 kg(T1)”
t0“pear tree”
Claim · model-written summary
The 0.5 kg nitrogen treatment increased fruit yield 17.0% versus no nitrogen.
- Taxon
- pear treePyrus communist0
- Treatment
- 0.5 kg(T2)e1
- Outcome
- fruit yielde0
- Direction
- highere0
- Value
- 17.0%e0
- Comparator
- CKe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fruit yield of T1,T2,T3 being 25.4%,17.0%,and 11.6%higher than that of CK”
e1“0.5 kg(T2)”
t0“pear tree”
Claim · model-written summary
The 0.25 kg nitrogen treatment increased fruit yield 11.6% versus no nitrogen.
- Taxon
- pear treePyrus communist0
- Treatment
- 0.25 kg(T3)e1
- Outcome
- fruit yielde0
- Direction
- highere0
- Value
- 11.6%e0
- Comparator
- CKe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fruit yield of T1,T2,T3 being 25.4%,17.0%,and 11.6%higher than that of CK”
e1“0.25 kg(T3)”
t0“pear tree”
Claim · model-written summary
Nitrogen fertilization significantly decreased fruit soluble sugar and organic acid content.
- Taxon
- pear treePyrus communist0
- Treatment
- N fertilizatione0
- Outcome
- fruit soluble sugar,organic acid contentse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N fertilization decreased fruit soluble sugar,organic acid contents significantly”
t0“pear tree”
Claim · model-written summary
Fruit hardness, soluble solids and water content did not differ significantly among nitrogen treatments.
- Taxon
- pear treePyrus communist0
- Outcome
- fruit hardness,soluble solids,water contentse0
- Direction
- not significantly differente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fruit hardness,soluble solids,water contents were not significantly different anong treatments”
t0“pear tree”
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See all 25 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.