Claim · model-written summary
Using cover crops can maintain soil carbon without adding carbon sources such as compost.
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Verbatim
e1“using cover crops can maintain soil carbon without the addition of carbon sources such as compost”
Title
Evaluation of Cool-season Vegetable Rotations in Organic Production
George E. Boyhan; Julia W. Gaskin; Elizabeth L. Little; et al. HortTechnology 2016. doi:10.21273/horttech03443-16
Other claims from this paper (16)
- Observation Onion yields in both rotations were at least 80% of average Georgia yields.
- Observation Lettuce yields were at least double the average Georgia yields.
- Observation Lettuce yields were comparable to national averages in the 2nd and 3rd years.
- Observation Strawberry yields were lower than Georgia averages in all 3 years.
- Observation Strawberry yields showed a trend of decline over the course of the study.
- Observation Potato yields were lower than average Georgia yields.
- Observation Potato yields increased each year of the study.
- Observation Broccoli yields in the first year were substantially lower than average Georgia yields.
- Observation Broccoli yields in the second year were comparable to average yields.
- Observation Carrot yields remained less than half of average Georgia yields.
- Observation Green bean yields were half of average Georgia yields in the second year.
- Observation Green bean yields were comparable to average yields in the third year.
- Observation Disease pressure was low in cool-season organic vegetable production in this study.
- Observation Cover crops maintained soil organic carbon.
- Observation Active C increased slightly, from 464 to 572 mg·kg −1 over the study.
- Observation Potentially mineralizable nitrogen showed a net loss under cover crops.