Abstract
The use of compost as an organic source of nutrients and soil improvement may help to increase the sustainability of intensively managed vegetables. Bell pepper ( Capsicum annuum L.) transplants were planted into silver-colored polyethylene mulched beds in a sandy loam soil amended with 0 or 22.4 Mg·ha –1 dairy manure compost. Preplant P was added to all beds at 78 kg·ha –1 . During the season, N (as NH 4 NO 3 ) was added about every 10 days. Total N rates for the season were: 0, 32, 65, or 96 kg·ha –1 . Percent of N in pepper leaf tissue increased from a low of 2.7% without N to3.8% at the high N rate. Leaf P concentrations were higher in 0 N plots than in other rates. Compost resulted in higher leaf concentrations of Ca. There was an interaction of compost and N rates for percent of culls. Compost increased percentage of culls with 0 or 32 kg·ha –1 N, but decreased or did not affect cull percentage at 65, or 96 kg·ha –1 N. Compost did not affect other yield parameters measured. Marketable yields increased from 11 Mg·ha –1 with 0 N to 18 Mg·ha –1 with high N, although the regression was not significant, due to extreme variability within the field.
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Claims 8
Claim · model-written summary
Percent N in pepper leaf tissue increased from 2.7% without N to 3.8% at the high N rate.
Verbatim
e0“Percent of N in pepper leaf tissue increased from a low of 2.7% without N to3.8% at the high N rate”
Claim · model-written summary
Pepper leaf P concentrations were higher in 0 N plots than at other N rates.
CapsicumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaf P concentrations were higher in 0 N plots than in other rates”
t0“Peppers (Capsicum annuum)”
Claim · model-written summary
Compost resulted in higher leaf Ca concentrations in pepper.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compost resulted in higher leaf concentrations of Ca”
t0“Peppers (Capsicum annuum)”
Claim · model-written summary
There was an interaction of compost and N rates for the percentage of culls in pepper.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was an interaction of compost and N rates for percent of culls”
t0“Peppers (Capsicum annuum)”
Claim · model-written summary
Compost increased the percentage of culls at 0 or 32 kg/ha N.
- Treatment
- Composte0
- Outcome
- percentage of cullse0
- Direction
- increasede0
- Qualifier
- with 0 or 32 kg·ha –1 Ne0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compost increased percentage of culls with 0 or 32 kg·ha –1 N”
t0“Peppers (Capsicum annuum)”
Claim · model-written summary
Compost decreased or did not affect the cull percentage at 65 or 96 kg/ha N.
- Treatment
- Composte0
- Outcome
- cull percentagee0
- Direction
- decreased or did not affecte0
- Qualifier
- at 65, or 96 kg·ha –1 Ne0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compost increased percentage of culls with 0 or 32 kg·ha –1 N, but decreased or did not affect cull percentage at 65, or 96 kg·ha –1 N”
t0“Peppers (Capsicum annuum)”
Claim · model-written summary
Compost did not affect the other yield parameters measured in pepper.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compost did not affect other yield parameters measured”
t0“Peppers (Capsicum annuum)”
Claim · model-written summary
Pepper marketable yield increased from 11 Mg/ha with 0 N to 18 Mg/ha with high N, but the regression was not significant due to extreme field variability.
- Treatment
- high Ne0
- Outcome
- Marketable yieldse0
- Direction
- increasede0
- Value
- 11 Mg·ha –1e0
- Qualifier
- 18 Mg·ha –1 with high Ne0
- Comparator
- 0 Ne0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Marketable yields increased from 11 Mg·ha –1 with 0 N to 18 Mg·ha –1 with high N, although the regression was not significant”
t0“Peppers (Capsicum annuum)”
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