Abstract
Greenhouse tomato experiment was conducted in Shouguang,Shandong province in order to investigate the effects of different water and nitrogen strategies on fruit yield and soil inorganic nitrogen of greenhouse tomato.Compared with conventional water and nitrogen management(CWN),optimize water and nitrogen management(OWN) is real-time control of rootzone N management and related target values were used to optimize N sidedressing,and irrigation up to field capacity by employing with bubbler irrigation system during the growing season,and applied for Calcium Cyanamide mixed with wheat straw in summer-fallow,Recommended water and nitrogen management(RWN) is sidedressed 100 kg/hm2 at the duration of first,third and fifth fruit ear enlargement separately.The result showed that there were no significant differences on tomato fruit yield of the OWN and RWN with 36.5% and 50% of sidedressed N input in comparison with conventional water and nitrogen management during two season greenhouse tomato system,in addition,the OWN decreased the irrigation water by 44% and 39% in two growing seasons,but the fruit yield increased by 10% significantly.Conventional nitrogen input made the content of soil inorganic nitrogen kept in a high level during the tomato growing season;The residue of soil inorganic nitrogen above 200 kg/hm2 in every layer and the total residue of soil inorganic nitrogen more than 1500 kg/hm2 in 0-180 cm soil depth after harvesting.The residue of soil inorganic nitrogen is 1/2 of CWN after the OWN and RWN improved the water and nitrogen management,significantly reduced the risk of nitrogen leaching and the effects of unreasonable water and nitrogen management on environment.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 10
Claim · model-written summary
OWN with 36.5% sidedressed nitrogen gave no significant difference in tomato fruit yield compared with conventional water and nitrogen management.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- OWNe1
- Outcome
- fruit yielde1
- Direction
- no_changeinferrede1
- Qualifier
- 36.5%e1
- Comparator
- conventional water and nitrogen managemente1
- Setting
- Shouguang,Shandong provincee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Greenhouse tomato experiment was conducted in Shouguang,Shandong province”
e1“there were no significant differences on tomato fruit yield of the OWN and RWN with 36.5% and 50% of sidedressed N input in comparison with conventional water and nitrogen management during two season greenhouse tomato system”
Claim · model-written summary
RWN with 50% sidedressed nitrogen gave no significant difference in tomato fruit yield compared with conventional water and nitrogen management.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- RWNe1
- Outcome
- fruit yielde1
- Direction
- no_changeinferrede1
- Qualifier
- 50%e1
- Comparator
- conventional water and nitrogen managemente1
- Setting
- Shouguang,Shandong provincee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Greenhouse tomato experiment was conducted in Shouguang,Shandong province”
e1“there were no significant differences on tomato fruit yield of the OWN and RWN with 36.5% and 50% of sidedressed N input in comparison with conventional water and nitrogen management during two season greenhouse tomato system”
Claim · model-written summary
OWN decreased tomato irrigation water by 44% in one of the two growing seasons.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- OWNe2
- Outcome
- irrigation watere2
- Direction
- decreasede2
- Value
- 44%e2
- Qualifier
- in two growing seasonse2
- Setting
- Shouguang,Shandong provincee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Greenhouse tomato experiment was conducted in Shouguang,Shandong province”
e2“in addition,the OWN decreased the irrigation water by 44% and 39% in two growing seasons,but the fruit yield increased by 10% significantly”
Claim · model-written summary
OWN decreased tomato irrigation water by 39% in one of the two growing seasons.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- OWNe2
- Outcome
- irrigation watere2
- Direction
- decreasede2
- Value
- 39%e2
- Qualifier
- in two growing seasonse2
- Setting
- Shouguang,Shandong provincee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Greenhouse tomato experiment was conducted in Shouguang,Shandong province”
e2“in addition,the OWN decreased the irrigation water by 44% and 39% in two growing seasons,but the fruit yield increased by 10% significantly”
Claim · model-written summary
OWN significantly increased tomato fruit yield by 10%.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- OWNe2
- Outcome
- fruit yielde2
- Direction
- increasede2
- Value
- 10%e2
- Setting
- Shouguang,Shandong provincee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Greenhouse tomato experiment was conducted in Shouguang,Shandong province”
e2“in addition,the OWN decreased the irrigation water by 44% and 39% in two growing seasons,but the fruit yield increased by 10% significantly”
Claim · model-written summary
Conventional nitrogen input kept soil inorganic nitrogen content at a high level during the tomato growing season.
- Taxon
- tomatoSolanum lycopersicume3
- Treatment
- Conventional nitrogen inpute3
- Outcome
- content of soil inorganic nitrogene3
- Qualifier
- kept in a high level during the tomato growing seasone3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Greenhouse tomato experiment was conducted in Shouguang,Shandong province”
e3“Conventional nitrogen input made the content of soil inorganic nitrogen kept in a high level during the tomato growing season”
Claim · model-written summary
Soil inorganic nitrogen residue after harvest was above 200 kg/hm2 in every layer.
- Taxon
- tomatoSolanum lycopersicume0
- Outcome
- residue of soil inorganic nitrogene4
- Value
- above 200 kg/hm2e4
- Qualifier
- in every layere4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Greenhouse tomato experiment was conducted in Shouguang,Shandong province”
e4“The residue of soil inorganic nitrogen above 200 kg/hm2 in every layer and the total residue of soil inorganic nitrogen more than 1500 kg/hm2 in 0-180 cm soil depth after harvesting”
Claim · model-written summary
Total soil inorganic nitrogen residue after harvest was more than 1500 kg/hm2 in 0-180 cm soil depth.
- Taxon
- tomatoSolanum lycopersicume0
- Outcome
- total residue of soil inorganic nitrogene4
- Value
- more than 1500 kg/hm2e4
- Qualifier
- 0-180 cm soil depthe4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Greenhouse tomato experiment was conducted in Shouguang,Shandong province”
e4“The residue of soil inorganic nitrogen above 200 kg/hm2 in every layer and the total residue of soil inorganic nitrogen more than 1500 kg/hm2 in 0-180 cm soil depth after harvesting”
Claim · model-written summary
OWN and RWN reduced soil inorganic nitrogen residue to 1/2 of conventional management.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- OWN and RWNe5
- Outcome
- residue of soil inorganic nitrogene5
- Direction
- decreaseinferrede5
- Value
- 1/2e5
- Comparator
- CWNe5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Greenhouse tomato experiment was conducted in Shouguang,Shandong province”
e5“The residue of soil inorganic nitrogen is 1/2 of CWN after the OWN and RWN improved the water and nitrogen management,significantly reduced the risk of nitrogen leaching”
Claim · model-written summary
OWN and RWN significantly reduced the risk of nitrogen leaching compared with conventional management.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- OWN and RWNe5
- Outcome
- risk of nitrogen leachinge5
- Direction
- reducede5
- Comparator
- CWNe5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Greenhouse tomato experiment was conducted in Shouguang,Shandong province”
e5“The residue of soil inorganic nitrogen is 1/2 of CWN after the OWN and RWN improved the water and nitrogen management,significantly reduced the risk of nitrogen leaching”
The same questions in other papers
nitrogen · environment: emissions · Solanum lycopersicum (tomato)Positive and negative results
3 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
1 paper more in this group
See all 5 papers →nitrogen · physiology: water · Solanum lycopersicum (tomato)Positive and negative results
6 papers in the same direction as this paper · 5 in the opposite direction
- no effect
- negative
- negative
8 papers more in this group
See all 12 papers →nitrogen · yield · Solanum lycopersicum (tomato)Positive and negative results
171 papers in the same direction as this paper · 31 in the opposite direction · 7 reporting no difference from an alternative
- negative
- negative
- negative
206 papers more in this group
See all 210 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.