Abstract
Facility-based agriculture has rapidly advanced due to its capacity for high-intensity and year-round crop cultivation. This study evaluated the effects of different nitrogen fertilizer application rates on the growth of greenhouse tomatoes, while utilizing 15N tracing technology to explore nitrogen utilization efficiency during the growth process of facility-grown tomatoes. The results indicate that nitrogen application rates within the range of N60–N80 (93–128 kg N ha−1) can optimally balance yield, nitrogen-use efficiency, and crop growth. Application rates exceeding this range do not enhance yield and lead to reduced nitrogen-use efficiency. Tomato plants exhibited a low N requirement during the seedling stage, relying primarily on native soil N stocks during the flowering stage. Fertilizer-derived N use increased during the fruiting stage. These findings demonstrate that excessive N inputs lead to diminishing returns and potential nutrient imbalances, while fully utilizing soil N stocks during the seedling and flowering stages is essential. This study emphasizes the importance of adjusting nitrogen input according to the developmental stages of the crop to optimize yield and resource utilization.
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Claims 9
Claim · model-written summary
Nitrogen rates of N60–N80 optimally balanced tomato yield.
- Taxon
- Tomatoes
Solanum lycopersicumt0 - Treatment
- N60–N80 (93–128 kg N ha−1)e0
- Outcome
- yielde0
- Direction
- optimally balancee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomatoes”
e0“The results indicate that nitrogen application rates within the range of N60–N80 (93–128 kg N ha−1) can optimally balance yield, nitrogen-use efficiency, and crop growth.”
Claim · model-written summary
Nitrogen rates of N60–N80 optimally balanced nitrogen-use efficiency and crop growth.
- Taxon
- TomatoesSolanum lycopersicumt0
- Treatment
- N60–N80 (93–128 kg N ha−1)e0
- Outcome
- nitrogen-use efficiency, and crop growthe0
- Direction
- optimally balancee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomatoes”
e0“The results indicate that nitrogen application rates within the range of N60–N80 (93–128 kg N ha−1) can optimally balance yield, nitrogen-use efficiency, and crop growth.”
Claim · model-written summary
Rates above N60–N80 did not enhance yield.
- Taxon
- TomatoesSolanum lycopersicumt0
- Treatment
- Application rates exceeding this rangee0
- Outcome
- yielde0
- Direction
- do not enhancee0
- Comparator
- this rangee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomatoes”
e0“Application rates exceeding this range do not enhance yield and lead to reduced nitrogen-use efficiency.”
Claim · model-written summary
Rates above N60–N80 reduced nitrogen-use efficiency.
- Taxon
- TomatoesSolanum lycopersicumt0
- Treatment
- Application rates exceeding this rangee0
- Outcome
- nitrogen-use efficiencye0
- Direction
- reducede0
- Comparator
- this rangee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomatoes”
e0“Application rates exceeding this range do not enhance yield and lead to reduced nitrogen-use efficiency.”
Claim · model-written summary
Tomato seedlings had low nitrogen requirements.
- Taxon
- TomatoesSolanum lycopersicumt0
- Organ / stage
- seedling stagee0
- Outcome
- low N requiremente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomatoes”
e0“Tomato plants exhibited a low N requirement during the seedling stage, relying primarily on native soil N stocks during the flowering stage.”
Claim · model-written summary
Tomatoes relied primarily on native soil nitrogen during flowering.
- Taxon
- TomatoesSolanum lycopersicumt0
- Organ / stage
- flowering stagee0
- Outcome
- relying primarily on native soil N stockse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomatoes”
e0“Tomato plants exhibited a low N requirement during the seedling stage, relying primarily on native soil N stocks during the flowering stage.”
Claim · model-written summary
Fertilizer-derived nitrogen use increased during fruiting.
- Taxon
- TomatoesSolanum lycopersicumt0
- Organ / stage
- fruiting stagee0
- Outcome
- Fertilizer-derived N usee0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomatoes”
e0“Fertilizer-derived N use increased during the fruiting stage.”
Claim · model-written summary
Excessive nitrogen inputs lead to diminishing returns and possible nutrient imbalances.
- Taxon
- TomatoesSolanum lycopersicumt0
- Treatment
- excessive N inputse0
- Outcome
- diminishing returns and potential nutrient imbalancese0
- Qualifier
- potential nutrient imbalancese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomatoes”
e0“These findings demonstrate that excessive N inputs lead to diminishing returns and potential nutrient imbalances”
Claim · model-written summary
Nitrogen input should be adjusted by crop developmental stage to optimize yield and resource utilization.
- Taxon
- TomatoesSolanum lycopersicumt0
- Outcome
- adjusting nitrogen input according to the developmental stages of the crope0
- Qualifier
- optimize yield and resource utilizatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomatoes”
e0“This study emphasizes the importance of adjusting nitrogen input according to the developmental stages of the crop to optimize yield and resource utilization.”
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