Abstract
【Objective】 The researth studied the effects of different fertilizers and water managements on water distribution in soil and water use efficiency of tomato to provide reference service for reasonable water and fertilizer utilization in vegetable cultivation in sunlight greenhouse.【Method】 A field experiment was carried out in soil cultivated sunlight greenhouse in Yangling district,Shaanxi Province to study the effects of different fertilizers and water managements on water distribution in soil and water use efficiency of tomato.【Result】 The water utilization efficiency of the treatment with addition of 450 kg N/hm2,225 kg P2O5/hm2,and 225 kg K2O/hm2 was as high as 50.3 kg/m3,when water saving irrigation method was adopted.When the amount of irrigation water was similar,there was not significant difference between the water utilization efficiency of conventional fertilization and formula fertilization.When the amount of fertilizing was similar,water saving irrigation improved the water utilization efficiency significantly compared with conventional irrigation.When the amount of fertilizing was 450 kg N/hm2,315 kg P2O5/hm2,and 450 kg K2O/hm2,water in soil at tomato harvest was lowest,which was less 0.88×103 m3/hm2 than corresponding period amounts of conventional irrigation and conventional fertilizion,and 0.52×103 m3/hm2 less than amounts of planting.The trend of tensiometers readings changes in different days was identical to the change of soil moisture,and could indicate the water level in the soil.【Conclusion】 Water-saving irrigation and formula fertilization in this study did not increase tomato yield,but significantly increased water use efficiency of tomato.
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Claims 8
Claim · model-written summary
Water use efficiency reached 50.3 kg/m3 with the specified fertilization and water saving irrigation.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- 450 kg N/hm2,225 kg P2O5/hm2,and 225 kg K2O/hm2e0
- Outcome
- water utilization efficiencye0
- Direction
- as high ase0
- Value
- 50.3 kg/m3e0
- Comparator
- conventional irrigatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water utilization efficiency of the treatment with addition of 450 kg N/hm2,225 kg P2O5/hm2,and 225 kg K2O/hm2 was as high as 50.3 kg/m3,when water saving irrigation method was adopted”
e1“significantly compared with conventional irrigation”
t0“tomato”
Claim · model-written summary
At similar irrigation amounts, water use efficiency did not differ significantly between conventional and formula fertilization.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- formula fertilizatione0
- Outcome
- water utilization efficiencye0
- Direction
- not significant differencee0
- Comparator
- conventional fertilizatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When the amount of irrigation water was similar,there was not significant difference between the water utilization efficiency of conventional fertilization and formula fertilization”
t0“tomato”
Claim · model-written summary
At similar fertilization amounts, water saving irrigation significantly improved water use efficiency over conventional irrigation.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- water saving irrigatione0
- Outcome
- water utilization efficiencye0
- Direction
- improvede0
- Comparator
- conventional irrigatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When the amount of fertilizing was similar,water saving irrigation improved the water utilization efficiency significantly compared with conventional irrigation”
t0“tomato”
Claim · model-written summary
Soil water at tomato harvest was lowest with the stated fertilizer amounts, 0.88×103 m3/hm2 below conventional irrigation and fertilization.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- 450 kg N/hm2,315 kg P2O5/hm2,and 450 kg K2O/hm2e0
- Outcome
- water in soil at tomato harveste0
- Direction
- loweste0
- Value
- 0.88×103 m3/hm2e0
- Comparator
- conventional irrigation and conventional fertilizione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When the amount of fertilizing was 450 kg N/hm2,315 kg P2O5/hm2,and 450 kg K2O/hm2,water in soil at tomato harvest was lowest,which was less 0.88×103 m3/hm2 than corresponding period amounts of conventional irrigation and conventional fertilizion”
Claim · model-written summary
Soil water at tomato harvest was 0.52×103 m3/hm2 below planting amounts.
- Taxon
- tomatoSolanum lycopersicumt0
- Outcome
- amounts of plantinge0
- Direction
- less thane0
- Value
- 0.52×103 m3/hm2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“0.52×103 m3/hm2 less than amounts of planting”
t0“tomato”
Claim · model-written summary
Tensiometer readings followed soil moisture changes and indicated soil water level.
- Taxon
- tomatoSolanum lycopersicumt0
- Outcome
- water level in the soile0
- Comparator
- change of soil moisturee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“trend of tensiometers readings changes in different days was identical to the change of soil moisture,and could indicate the water level in the soil”
t0“tomato”
Claim · model-written summary
Water saving irrigation and formula fertilization did not increase tomato yield.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- Water-saving irrigation and formula fertilizatione0
- Outcome
- tomato yielde0
- Direction
- did not increasee0
- Comparator
- conventional irrigatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water-saving irrigation and formula fertilization in this study did not increase tomato yield”
e1“significantly compared with conventional irrigation”
Claim · model-written summary
Water saving irrigation and formula fertilization significantly increased tomato water use efficiency.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- Water-saving irrigation and formula fertilizatione0
- Outcome
- water use efficiency of tomatoe0
- Direction
- increasede0
- Comparator
- conventional irrigatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water-saving irrigation and formula fertilization in this study did not increase tomato yield,but significantly increased water use efficiency of tomato”
e1“significantly compared with conventional irrigation”
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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.