Abstract
Water scarcity and nitrate contamination have caused considerable attention to environmental matters. Water and nitrogen interactions have critical impacts on their use efficiency, plant growth, and quality. In a field experiment, a combination of three water treatments and three nitrogen rates was applied to determine their interactive effects on the growth of spinach. Soil water supply that was too low [W3N1 (the combination of water treatment 3 and nitrogen treatment 1), W3N2] could cause an increase in nitrate content. Oxalate contents would increase when water and nitrogen were either inadequate (W3N0, W3N1) or too high (W2N2). The most profit from spinach was obtained in plots that received water treatment 2 and nitrogen fertilizer 78 kg N ha−1. However, considering nitrogen treatments could affect the nitrate and oxalic acid, application of water treatment 2 and 39 kg N ha−1 nitrogen fertilizer could get better spinach quality.
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Claims 5
Claim · model-written summary
Too-low soil water supply (W3N1, W3N2) increased nitrate content in spinach.
- Taxon
- Spinach
Spinacia oleraceat0 - Treatment
- Soil water supply that was too lowe1
- Outcome
- nitrate contente1
- Direction
- increasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Soil water supply that was too low [W3N1 (the combination of water treatment 3 and nitrogen treatment 1), W3N2] could cause an increase in nitrate content”
t0“Spinach”
Claim · model-written summary
Oxalate contents in spinach increased when water and nitrogen were inadequate (W3N0, W3N1).
- Taxon
- SpinachSpinacia oleraceat0
- Treatment
- water and nitrogen were either inadequate (W3N0, W3N1)e1
- Outcome
- Oxalate contentse1
- Direction
- increasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Oxalate contents would increase when water and nitrogen were either inadequate (W3N0, W3N1)”
t0“Spinach”
Claim · model-written summary
Oxalate contents in spinach increased when water and nitrogen were too high (W2N2).
- Taxon
- SpinachSpinacia oleraceat0
- Treatment
- too high (W2N2)e1
- Outcome
- Oxalate contentse1
- Direction
- increasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Oxalate contents would increase when water and nitrogen were either inadequate (W3N0, W3N1) or too high (W2N2)”
t0“Spinach”
Claim · model-written summary
The most profit from spinach was obtained with water treatment 2 and nitrogen fertilizer at 78 kg N ha-1.
- Taxon
- spinachSpinacia oleraceae1
- Treatment
- water treatment 2 and nitrogen fertilizer 78 kg N ha−1e1
- Outcome
- profite1
- Direction
- moste1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The most profit from spinach was obtained in plots that received water treatment 2 and nitrogen fertilizer 78 kg N ha−1”
Claim · model-written summary
The authors recommend water treatment 2 with 39 kg N ha-1 nitrogen fertilizer for better spinach quality.
- Taxon
- spinachSpinacia oleraceae1
- Outcome
- better spinach qualitye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“application of water treatment 2 and 39 kg N ha−1 nitrogen fertilizer could get better spinach quality”
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