Abstract
Tomato (Solanum lycopersicum), a solanaceous crop, is widely cultivated worldwide. This study evaluates the impact of Nano DAP (diammonium phosphate) on morpho-physiological traits, biochemical properties, yield, and quality parameters. Eight treatments comprising varying proportions of DAP and Nano DAP were evaluated for traits including plant height, leaf area, chlorophyll index, total dry matter production, gas exchange parameters, leaf soluble protein, total soluble solids (TSS), ascorbic acid, titratable acidity, firmness and fruit yield. The hybrid tomato variety 'Shivam' was cultivated in pot culture under a glasshouse at Tamil Nadu Agricultural University, Coimbatore, using a completely randomized design with five replications. Foliar sprays with different proportions of nano DAP and DAP were applied 30 and 45 days after transplanting. Among the treatments, 75% RDNP (recommended nitrogen and phosphorus dose) combined with two foliar sprays of nano DAP @ 0.7% (T5) significantly increased plant height (48.90 cm and 54.31 cm), chlorophyll index (40.05 and 42.15), dry matter production (55.45 g plant?¹), TSS (5.52 Brix), fruit production, and ascorbic acid content. This treatment also improved gas exchange parameters, fruit firmness, and overall `growth and productivity compared to other treatments. Conversely, the absolute control group demonstrated the lowest performance across all parameters. The study highlights that combining both conventional fertilizers with Nano DAP considerably improves tomato growth by enhancing nutrient absorption, particularly nitrogen and phosphorus, which are essential for cell division, photosynthesis, and energy transfer. Nano DAP, due to its small particle size and large surface area, effectively penetrates plant tissues, increasing nutrient availability, chlorophyll content, and plant height. These findings underscore the potential of Nano DAP to substantially enhance tomato yield and quality, thereby contributing to sustainable crop production.
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Claims 8
Claim · model-written summary
T5 significantly increased tomato plant height to 48.90 cm and 54.31 cm relative to other treatments.
- Taxon
- Tomato
Solanum lycopersicumt0 - Treatment
- 75% RDNP (recommended nitrogen and phosphorus dose) combined with two foliar sprays of nano DAP @ 0.7% (T5)e0
- Outcome
- plant heighte0
- Direction
- increasede0
- Value
- 48.90 cm and 54.31 cme0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“75% RDNP (recommended nitrogen and phosphorus dose) combined with two foliar sprays of nano DAP @ 0.7% (T5) significantly increased plant height (48.90 cm and 54.31 cm)”
t0“tomato”
Claim · model-written summary
T5 significantly increased tomato chlorophyll index to 40.05 and 42.15.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- 75% RDNP (recommended nitrogen and phosphorus dose) combined with two foliar sprays of nano DAP @ 0.7% (T5)e0
- Outcome
- chlorophyll indexe0
- Direction
- increasede0
- Value
- 40.05 and 42.15e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“75% RDNP (recommended nitrogen and phosphorus dose) combined with two foliar sprays of nano DAP @ 0.7% (T5) significantly increased plant height (48.90 cm and 54.31 cm), chlorophyll index (40.05 and 42.15)”
t0“tomato”
Claim · model-written summary
T5 significantly increased tomato dry matter production to 55.45 g plant?¹.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- 75% RDNP (recommended nitrogen and phosphorus dose) combined with two foliar sprays of nano DAP @ 0.7% (T5)e0
- Outcome
- dry matter productione0
- Direction
- increasede0
- Value
- 55.45 g plant?¹e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“75% RDNP (recommended nitrogen and phosphorus dose) combined with two foliar sprays of nano DAP @ 0.7% (T5) significantly increased plant height (48.90 cm and 54.31 cm), chlorophyll index (40.05 and 42.15), dry matter production (55.45 g plant?¹)”
t0“tomato”
Claim · model-written summary
T5 significantly increased tomato total soluble solids to 5.52 Brix.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- 75% RDNP (recommended nitrogen and phosphorus dose) combined with two foliar sprays of nano DAP @ 0.7% (T5)e0
- Outcome
- TSSe0
- Direction
- increasede0
- Value
- 5.52 Brixe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“75% RDNP (recommended nitrogen and phosphorus dose) combined with two foliar sprays of nano DAP @ 0.7% (T5) significantly increased plant height (48.90 cm and 54.31 cm), chlorophyll index (40.05 and 42.15), dry matter production (55.45 g plant?¹), TSS (5.52 Brix)”
t0“tomato”
Claim · model-written summary
T5 significantly increased tomato fruit production.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- 75% RDNP (recommended nitrogen and phosphorus dose) combined with two foliar sprays of nano DAP @ 0.7% (T5)e0
- Outcome
- fruit productione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“75% RDNP (recommended nitrogen and phosphorus dose) combined with two foliar sprays of nano DAP @ 0.7% (T5) significantly increased plant height (48.90 cm and 54.31 cm), chlorophyll index (40.05 and 42.15), dry matter production (55.45 g plant?¹), TSS (5.52 Brix), fruit production”
t0“tomato”
Claim · model-written summary
T5 significantly increased tomato ascorbic acid content.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- 75% RDNP (recommended nitrogen and phosphorus dose) combined with two foliar sprays of nano DAP @ 0.7% (T5)e0
- Outcome
- ascorbic acid contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“75% RDNP (recommended nitrogen and phosphorus dose) combined with two foliar sprays of nano DAP @ 0.7% (T5) significantly increased plant height (48.90 cm and 54.31 cm), chlorophyll index (40.05 and 42.15), dry matter production (55.45 g plant?¹), TSS (5.52 Brix), fruit production, and ascorbic acid content”
t0“tomato”
Claim · model-written summary
T5 improved tomato gas exchange parameters and fruit firmness compared with other treatments.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- This treatmente0
- Outcome
- gas exchange parameters, fruit firmnesse0
- Direction
- improvede0
- Comparator
- other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This treatment also improved gas exchange parameters, fruit firmness, and overall `growth and productivity compared to other treatments”
t0“tomato”
Claim · model-written summary
The absolute control showed the lowest performance across tomato parameters.
- Taxon
- TomatoSolanum lycopersicumt0
- Outcome
- lowest performance across all parameterse0
- Direction
- loweste0
Not reportedMaterial
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the absolute control group demonstrated the lowest performance across all parameters”
t0“tomato”
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See all 32 papers →8 of 20 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.