Abstract
Applying nitrogen fertilizers in agriculture can cause uncontrolled gas emissions, such as N2O and CO2, leading to global warming and serious climate changes. In this study, we evaluated the greenhouse gas emissions (GHGs) that are concomitant with applying different rates of N fertilization, i.e., 50, 75, 100, and 125% of the recommended dose (727 kg N ha−1) for two cultivars (Balady and Sids-40) of Allium sativum L. grown under three planting dates (15 September, 1 October, and 15 October). For this purpose, two field experiments were carried out during the two growing seasons of 2020/2021 and 2021/2022. Treatments were arranged in a split–split plot design with three replicates: planting dates were set up in the main plots, nitrogen levels were conducted in the submain plots, and garlic varieties were in the sub-subplots. The obtained results can be summarized as follows: Planting on 15 September significantly increased vegetative growth parameters (i.e., plant height, leaves area, number of leaves plant−1, and leaves dry weight) and total bulb yield, in both seasons. The application of the highest rate of N (125%) gave significantly higher records for vegetative growth parameters, while the 75% nitrogen treatment appeared to give the highest total bulb yield in both seasons. The means of plant growth characteristics and total bulb yield were significantly increased by the cultivation of the Balady cultivar. In addition, the results show that GHGs were positively correlated with increasing the rate of N fertilization. It could be recommended that planting on 15 September and fertilizing with 75% N fertilizer from the recommended dose for Balady cultivar achieve maximum yield and its components.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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
Planting garlic on 15 September significantly increased vegetative growth parameters in both seasons.
- Taxon
- Garlic
Allium sativumt0 - Treatment
- Planting on 15 Septembere0
- Outcome
- vegetative growth parameterse0
- Direction
- increasede0
- Qualifier
- in both seasonse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Garlic (Allium sativum L.)”
e0“Planting on 15 September significantly increased vegetative growth parameters (i.e., plant height, leaves area, number of leaves plant−1, and leaves dry weight) and total bulb yield, in both seasons”
Claim · model-written summary
Planting garlic on 15 September significantly increased total bulb yield in both seasons.
- Taxon
- GarlicAllium sativumt0
- Treatment
- Planting on 15 Septembere0
- Outcome
- total bulb yielde0
- Direction
- increasede0
- Qualifier
- in both seasonse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Garlic (Allium sativum L.)”
e0“Planting on 15 September significantly increased vegetative growth parameters (i.e., plant height, leaves area, number of leaves plant−1, and leaves dry weight) and total bulb yield, in both seasons”
Claim · model-written summary
The highest nitrogen rate (125% of the recommended dose) gave significantly higher vegetative growth parameters.
- Taxon
- GarlicAllium sativumt0
- Treatment
- highest rate of N (125%)e0
- Outcome
- vegetative growth parameterse0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Garlic (Allium sativum L.)”
e0“The application of the highest rate of N (125%) gave significantly higher records for vegetative growth parameters”
Claim · model-written summary
The 75% nitrogen treatment appeared to give the highest total bulb yield in both seasons.
- Taxon
- GarlicAllium sativumt0
- Treatment
- 75% nitrogen treatmente0
- Outcome
- total bulb yielde0
- Direction
- higheste0
- Qualifier
- in both seasonse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Garlic (Allium sativum L.)”
e0“the 75% nitrogen treatment appeared to give the highest total bulb yield in both seasons”
Claim · model-written summary
Cultivation of the Balady cultivar significantly increased the means of plant growth characteristics and total bulb yield.
- Taxon
- GarlicAllium sativumt0
- Material
- Baladye0
- Treatment
- cultivation of the Balady cultivare0
- Outcome
- plant growth characteristics and total bulb yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Garlic (Allium sativum L.)”
e0“The means of plant growth characteristics and total bulb yield were significantly increased by the cultivation of the Balady cultivar”
Claim · model-written summary
Greenhouse gas emissions were positively correlated with increasing the rate of nitrogen fertilization.
- Taxon
- GarlicAllium sativumt0
- Treatment
- N fertilizatione0
- Outcome
- GHGse0
- Direction
- positively correlatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Garlic (Allium sativum L.)”
e0“GHGs were positively correlated with increasing the rate of N fertilization”
Claim · model-written summary
Planting on 15 September and fertilizing with 75% of the recommended N dose is recommended for the Balady cultivar to achieve maximum yield and its components.
- Taxon
- GarlicAllium sativumt0
- Material
- Baladye0
- Treatment
- planting on 15 September and fertilizing with 75% N fertilizere0
- Outcome
- maximum yield and its componentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Garlic (Allium sativum L.)”
e0“planting on 15 September and fertilizing with 75% N fertilizer from the recommended dose for Balady cultivar achieve maximum yield and its components”
The same questions in other papers
nitrogen · yield · Allium sativum (garlic)Positive and negative results
50 papers in the same direction as this paper · 3 in the opposite direction · 1 reporting no difference from an alternative
- positive
- positive
- positive
51 papers more in this group
See all 55 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.