Abstract
The effects of excessive application of nitrogen fertilizer combining with the application of rapeseed cake and nitrogen fertilizer on the growth,quality and nitrogen metabolism of the garlic seedling were studied under soil culture condition.Excessive application of nitrogen fertilizer significantly decreased the plant height,leaf length,leaf width,yield and the content of vitamin C and markedly increased the content of nitrate and the activity of nitrate reductase in leaves of the garlic seedling.The contents of chlorophyll,soluble sugar,soluble protein and free amino acid in the leaves of the garlic seedling was enhanced at high nitrogen level of 0.4 g/kg,then reduced at excessive nitrogen level of 0.6 g/kg.Compared with chemical nitrogen fertilizer,the application of rape seed cake or combining it with nitrogen fertilizer obviously enhanced the plant height,leaf length,leaf width,yield and the content of vitamin C in leaves of the garlic seedling and improved the content of soluble protein and the activity of nitrate reductase,notablely depressed the content of chlorophyll,free amino acid and nitrate,also decreased the content of soluble sugar.It indicated that the application of rapeseed cake or combining it with chemical fertilizer might escape the toxicity due to excessive application of inorganic fertilizer and improve the quality and yield of the garlic seedling.
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 7
Claim · model-written summary
Excessive nitrogen decreased garlic seedling height, leaf size, yield and vitamin C.
- Taxon
- Garlic
Allium sativumt0 - Treatment
- Excessive application of nitrogen fertilizere0
- Outcome
- plant height,leaf length,leaf widthe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Excessive application of nitrogen fertilizer significantly decreased the plant height,leaf length,leaf width,yield and the content of vitamin C”
t0“Garlic Seedling”
Claim · model-written summary
Excessive nitrogen decreased garlic yield.
- Taxon
- GarlicAllium sativumt0
- Treatment
- Excessive application of nitrogen fertilizere0
- Outcome
- yielde0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Excessive application of nitrogen fertilizer significantly decreased the plant height,leaf length,leaf width,yield and the content of vitamin C”
t0“Garlic Seedling”
Claim · model-written summary
Excessive nitrogen decreased vitamin C content.
- Taxon
- GarlicAllium sativumt0
- Treatment
- Excessive application of nitrogen fertilizere0
- Outcome
- content of vitamin Ce0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Excessive application of nitrogen fertilizer significantly decreased the plant height,leaf length,leaf width,yield and the content of vitamin C”
t0“Garlic Seedling”
Claim · model-written summary
Excessive nitrogen increased leaf nitrate and nitrate reductase activity.
- Taxon
- garlicAllium sativume0
- Outcome
- content of nitrate and the activity of nitrate reductasee0
- Direction
- increasede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“markedly increased the content of nitrate and the activity of nitrate reductase in leaves of the garlic seedling”
Claim · model-written summary
Chlorophyll, soluble sugar, soluble protein and free amino acid rose at 0.4 g/kg nitrogen and fell at 0.6 g/kg.
- Taxon
- garlicAllium sativume0
- Treatment
- high nitrogen level of 0.4 g/kge0
- Outcome
- contents of chlorophyll,soluble sugar,soluble proteine0
- Direction
- enhancede0
- Qualifier
- then reduced at excessive nitrogen level of 0.6 g/kge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The contents of chlorophyll,soluble sugar,soluble protein and free amino acid in the leaves of the garlic seedling was enhanced at high nitrogen level of 0.4 g/kg,then reduced at excessive nitrogen level of 0.6 g/kg”
Claim · model-written summary
Rapeseed cake with or without nitrogen increased garlic growth, yield and vitamin C versus chemical nitrogen.
- Taxon
- garlicAllium sativume0
- Treatment
- application of rape seed cake or combining it with nitrogen fertilizere0
- Outcome
- plant height,leaf length,leaf widthe0
- Direction
- enhancede0
- Comparator
- chemical nitrogen fertilizere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with chemical nitrogen fertilizer,the application of rape seed cake or combining it with nitrogen fertilizer obviously enhanced the plant height,leaf length,leaf width,yield and the content of vitamin C in leaves of the garlic seedling”
Claim · model-written summary
Rapeseed cake treatments increased soluble protein and nitrate reductase and decreased chlorophyll, free amino acid, nitrate and soluble sugar.
- Taxon
- GarlicAllium sativumt0
- Outcome
- content of soluble protein and the activity of nitrate reductasee0
- Direction
- improvede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“improved the content of soluble protein and the activity of nitrate reductase,notablely depressed the content of chlorophyll,free amino acid and nitrate,also decreased the content of soluble sugar”
t0“Garlic Seedling”
The same questions in other papers
Brassica napus · growth · Allium sativum (garlic)Positive and negative results
1 in the opposite direction
- negative
fertilization · yield · Allium sativum (garlic)Results differ
10 papers in the same direction as this paper · 155 in the opposite direction
- positive
- positive
- positive
162 papers more in this group
See all 166 papers →fertilization · quality: phytochemicals · Allium sativum (garlic)Positive and negative results
10 in the opposite direction
- positive
- positive
- positive
7 papers more in this group
See all 11 papers →fertilization · growth · Allium sativum (garlic)Positive and negative results
92 papers in the same direction as this paper · 6 in the opposite direction
- no effect
- no effect
- no effect
95 papers more in this group
See all 99 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.