Abstract
Two types of commercial compost produced from manure and food waste or brewery waste solids were tested for supplying the N requirements of a bell pepper crop in a drip-irrigated plasticulture system over two seasons. Composts were tested at 40 and 80 Mg·ha -1 , and combined with 67 and 133 or 0 and 67 kg·ha –1 N applied as mineral fertilizer in the first and second seasons, respectively. Both types of compost increased total soil carbon and N content relative to unamended soil. Compost amendment also increased soil NO 3 -N, NH 4 -N and N mineralization potential throughout the season, but yields were not affected. Increasing compost amendment rate from 40 to 80 Mg·ha –1 did not increase N levels in soil or plants. Yield was not affected and season biomass accumulation was inconsistently affected by compost amendment. Commercial composts thus released mineral N in the first year of application, but supplementation with mineral fertilizer may be necessary depending on seasonal variation of N release and crop need.
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Claims 7
Claim · model-written summary
Both types of compost increased total soil carbon and N content relative to unamended soil in bell pepper plots.
Verbatim
e1“Two types of commercial compost produced from manure and food waste or brewery waste solids were tested for supplying the N requirements of a bell pepper crop in a drip-irrigated plasticulture system over two seasons”
e2“Both types of compost increased total soil carbon and N content relative to unamended soil”
Claim · model-written summary
Compost amendment increased soil NO3-N, NH4-N and N mineralization potential throughout the season.
- Taxon
- bell peppere1
- Treatment
- Compost amendmente3
- Outcome
- soil NO 3 -N, NH 4 -N and N mineralization potentiale3
- Direction
- increasede3
Not reportedComparator
Verbatim
e1“Two types of commercial compost produced from manure and food waste or brewery waste solids were tested for supplying the N requirements of a bell pepper crop in a drip-irrigated plasticulture system over two seasons”
e3“Compost amendment also increased soil NO 3 -N, NH 4 -N and N mineralization potential throughout the season”
Claim · model-written summary
Compost amendment did not affect bell pepper yield.
Not reportedComparator
Verbatim
e1“Two types of commercial compost produced from manure and food waste or brewery waste solids were tested for supplying the N requirements of a bell pepper crop in a drip-irrigated plasticulture system over two seasons”
e4“Yield was not affected and season biomass accumulation was inconsistently affected by compost amendment”
Claim · model-written summary
Increasing the compost rate from 40 to 80 Mg/ha did not increase soil or plant N levels.
Verbatim
e1“Two types of commercial compost produced from manure and food waste or brewery waste solids were tested for supplying the N requirements of a bell pepper crop in a drip-irrigated plasticulture system over two seasons”
e5“Increasing compost amendment rate from 40 to 80”
e6“did not increase N levels in soil or plants”
Claim · model-written summary
Season biomass accumulation was inconsistently affected by compost amendment in bell pepper.
Not reportedComparatorDirection
Verbatim
e1“Two types of commercial compost produced from manure and food waste or brewery waste solids were tested for supplying the N requirements of a bell pepper crop in a drip-irrigated plasticulture system over two seasons”
e4“Yield was not affected and season biomass accumulation was inconsistently affected by compost amendment”
Claim · model-written summary
Commercial composts released mineral N in the first year of application.
Not reportedComparator
Verbatim
e1“Two types of commercial compost produced from manure and food waste or brewery waste solids were tested for supplying the N requirements of a bell pepper crop in a drip-irrigated plasticulture system over two seasons”
e7“Commercial composts thus released mineral N in the first year of application”
Claim · model-written summary
Supplementation with mineral fertilizer may be necessary for bell pepper depending on seasonal N release and crop need.
Verbatim
e1“Two types of commercial compost produced from manure and food waste or brewery waste solids were tested for supplying the N requirements of a bell pepper crop in a drip-irrigated plasticulture system over two seasons”
e0“supplementation with mineral fertilizer may be necessary depending on seasonal variation of N release and crop need”
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