Abstract
Abstract Two experiments were conducted on a gravelly loam soil of low N status to determine the amounts and timing of N fertilizer needed for high early and total yields of fresh-market tomatoes grown with or without clear plastic mulch. In both years, the mulch slightly increased early flower number, hastened flower production, and increased early yield. Hastening of maturity of plants on mulch resulted in a 22% increase in ripe fruit in the short (118-day) season of 1984 and a decrease in percent green fruit at final harvest. A N rate of 84 kg·ha −1 increased total yields compared to 0 N, whereas 168 kg·ha −1 of N decreased early yield in 1984 but not 1985. Applying one-half of the N at planting and sidedressing the remaining half was just as effective in increasing yields as applying all the N at planting, even with mulched plants. Low tissue NO 3 -N concentration (< 0.2%) 3 weeks after transplanting reflected insufficient N application for optimum yield but also resulted from limited soil moisture when applied N was adequate. The mulch has increased P consistently and, to a lesser extent, the K concentration in young tomato plants, whereas the effects of mulch on mineral concentration of other elements have varied with year, soil type, and climatic factors.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc-nd. 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 13
Claim · model-written summary
Clear plastic mulch slightly increased early flower number of fresh-market tomatoes compared with no mulch.
- Taxon
- Tomatoes
Solanum lycopersicumt0 - Treatment
- clear plastic mulche2
- Outcome
- early flower numbere1
- Direction
- increasede1
- Comparator
- without clear plastic mulche2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Response of Fresh-market Tomatoes to Nitrogen Fertilizer and Plastic Mulch in a Short Growing Season”
e1“In both years, the mulch slightly increased early flower number, hastened flower production, and increased early yield”
e2“fresh-market tomatoes grown with or without clear plastic mulch”
Claim · model-written summary
Mulch hastened flower production of fresh-market tomatoes compared with no mulch.
- Taxon
- TomatoesSolanum lycopersicumt0
- Treatment
- clear plastic mulche2
- Outcome
- flower productione1
- Direction
- hastenede1
- Comparator
- without clear plastic mulche2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Response of Fresh-market Tomatoes to Nitrogen Fertilizer and Plastic Mulch in a Short Growing Season”
e1“In both years, the mulch slightly increased early flower number, hastened flower production, and increased early yield”
e2“fresh-market tomatoes grown with or without clear plastic mulch”
Claim · model-written summary
Clear plastic mulch increased early yield of fresh-market tomatoes compared with no mulch.
- Taxon
- TomatoesSolanum lycopersicumt0
- Treatment
- clear plastic mulche2
- Outcome
- early yielde1
- Direction
- increasede1
- Comparator
- without clear plastic mulche2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Response of Fresh-market Tomatoes to Nitrogen Fertilizer and Plastic Mulch in a Short Growing Season”
e1“In both years, the mulch slightly increased early flower number, hastened flower production, and increased early yield”
e2“fresh-market tomatoes grown with or without clear plastic mulch”
Claim · model-written summary
Plants on mulch had a 22% increase in ripe fruit in the short 1984 season.
- Taxon
- TomatoesSolanum lycopersicumt0
- Treatment
- plants on mulche3
- Outcome
- ripe fruite3
- Direction
- increasee3
- Value
- 22%e3
- Setting
- short (118-day) season of 1984e3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Response of Fresh-market Tomatoes to Nitrogen Fertilizer and Plastic Mulch in a Short Growing Season”
e3“Hastening of maturity of plants on mulch resulted in a 22% increase in ripe fruit in the short (118-day) season of 1984 and a decrease in percent green fruit at final harvest”
Claim · model-written summary
Plants on mulch had a decrease in percent green fruit at final harvest.
- Taxon
- TomatoesSolanum lycopersicumt0
- Treatment
- plants on mulche3
- Outcome
- percent green fruit at final harveste3
- Direction
- decreasee3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Response of Fresh-market Tomatoes to Nitrogen Fertilizer and Plastic Mulch in a Short Growing Season”
e3“Hastening of maturity of plants on mulch resulted in a 22% increase in ripe fruit in the short (118-day) season of 1984 and a decrease in percent green fruit at final harvest”
Claim · model-written summary
A N rate of 84 kg/ha increased total yield of tomato compared with no N.
- Taxon
- TomatoesSolanum lycopersicumt0
- Treatment
- 84 kg·ha −1e4
- Outcome
- total yieldse4
- Direction
- increasede4
- Comparator
- 0 Ne4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Response of Fresh-market Tomatoes to Nitrogen Fertilizer and Plastic Mulch in a Short Growing Season”
e4“A N rate of 84 kg·ha −1 increased total yields compared to 0 N, whereas 168 kg·ha −1 of N decreased early yield in 1984 but not 1985”
Claim · model-written summary
A N rate of 168 kg/ha decreased early yield in 1984 but not in 1985.
- Taxon
- TomatoesSolanum lycopersicumt0
- Treatment
- 168 kg·ha −1 of Ne4
- Outcome
- early yielde4
- Direction
- decreasede4
- Qualifier
- in 1984 but not 1985e4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Response of Fresh-market Tomatoes to Nitrogen Fertilizer and Plastic Mulch in a Short Growing Season”
e4“A N rate of 84 kg·ha −1 increased total yields compared to 0 N, whereas 168 kg·ha −1 of N decreased early yield in 1984 but not 1985”
Claim · model-written summary
Splitting N into one-half at planting and one-half sidedressed was as effective for yield as applying all N at planting, also with mulched plants.
- Taxon
- TomatoesSolanum lycopersicumt0
- Treatment
- Applying one-half of the N at planting and sidedressing the remaining halfe5
- Outcome
- yieldse5
- Direction
- increasinge5
- Qualifier
- even with mulched plantse5
- Comparator
- applying all the N at plantinge5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Response of Fresh-market Tomatoes to Nitrogen Fertilizer and Plastic Mulch in a Short Growing Season”
e5“Applying one-half of the N at planting and sidedressing the remaining half was just as effective in increasing yields as applying all the N at planting, even with mulched plants”
Claim · model-written summary
Low tissue NO3-N concentration below 0.2% three weeks after transplanting reflected insufficient N application for optimum yield.
- Taxon
- TomatoesSolanum lycopersicumt0
- Treatment
- insufficient N applicatione7
- Outcome
- tissue NO 3 -N concentratione7
- Direction
- Lowe7
- Value
- < 0.2%e7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Response of Fresh-market Tomatoes to Nitrogen Fertilizer and Plastic Mulch in a Short Growing Season”
e7“Low tissue NO 3 -N concentration (< 0.2%) 3 weeks after transplanting reflected insufficient N application for optimum yield but also resulted from limited soil moisture when applied N was adequate”
Claim · model-written summary
Low tissue NO3-N concentration also resulted from limited soil moisture when applied N was adequate.
- Taxon
- TomatoesSolanum lycopersicumt0
- Treatment
- limited soil moisturee7
- Outcome
- tissue NO 3 -N concentratione7
- Direction
- Lowe7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Response of Fresh-market Tomatoes to Nitrogen Fertilizer and Plastic Mulch in a Short Growing Season”
e7“Low tissue NO 3 -N concentration (< 0.2%) 3 weeks after transplanting reflected insufficient N application for optimum yield but also resulted from limited soil moisture when applied N was adequate”
Claim · model-written summary
Mulch consistently increased P concentration in young tomato plants.
- Taxon
- TomatoesSolanum lycopersicumt0
- Organ / stage
- young tomato plantse6
- Treatment
- The mulche6
- Outcome
- Pe6
- Direction
- increasede6
- Qualifier
- consistentlye6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Response of Fresh-market Tomatoes to Nitrogen Fertilizer and Plastic Mulch in a Short Growing Season”
e6“The mulch has increased P consistently and, to a lesser extent, the K concentration in young tomato plants”
Claim · model-written summary
Mulch increased K concentration in young tomato plants to a lesser extent than P.
- Taxon
- TomatoesSolanum lycopersicumt0
- Organ / stage
- young tomato plantse6
- Treatment
- The mulche6
- Outcome
- K concentratione6
- Direction
- increasede6
- Qualifier
- to a lesser extente6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Response of Fresh-market Tomatoes to Nitrogen Fertilizer and Plastic Mulch in a Short Growing Season”
e6“The mulch has increased P consistently and, to a lesser extent, the K concentration in young tomato plants”
Claim · model-written summary
Effects of mulch on mineral concentration of other elements varied with year, soil type and climatic factors.
- Taxon
- TomatoesSolanum lycopersicumt0
- Treatment
- mulche2
- Outcome
- mineral concentration of other elementse2
- Qualifier
- varied with year, soil type, and climatic factorse2
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Response of Fresh-market Tomatoes to Nitrogen Fertilizer and Plastic Mulch in a Short Growing Season”
e2“the effects of mulch on mineral concentration of other elements have varied with year, soil type, and climatic factors”
The same questions in other papers
mulching · phenology · Solanum lycopersicum (tomato)Positive and negative results
15 papers in the same direction as this paper · 1 in the opposite direction · 1 reporting no difference from an alternative
- negative
- no effect
- positive
14 papers more in this group
See all 18 papers →mulching · yield · Solanum lycopersicum (tomato)Positive and negative results
183 papers in the same direction as this paper · 17 in the opposite direction · 9 reporting no difference from an alternative
- positive
- positive
- positive
206 papers more in this group
See all 210 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.