Digital image analysis estimates of biomass, carbon, and nitrogen uptake of winter cereal cover crops

Sunoj, S.; McRoberts, Keenan C.; Benson, M.J.; Ketterings, Quirine M.

doi:10.1016/j.compag.2021.106093

Cited by 16 publications

(11 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Cover crop biomass production is affected by variability in annual weather and management practices (Chatterjee et al, 2020;Moore & Mirsky, 2020). We agree with Sunoj et al (2021) that more data on cover crop biomass and ground cover along a variety of locations, weather conditions, and cover crop species will advance our understanding of the relation between cover crop soil coverage and biomass of cover crops.…”

Section: Relation Between Biomass and Soil Coverage Of Cover Cropssupporting

confidence: 77%

“…We agree with Sunoj et al. (2021) that more data on cover crop biomass and ground cover along a variety of locations, weather conditions, and cover crop species will advance our understanding of the relation between cover crop soil coverage and biomass of cover crops.…”

Section: Resultsmentioning

confidence: 99%

“…On the unlogged scale, the fitted model is written as cover crop biomass = exp (2.231) × cover crop soil cover 0.974 (3) Recently, a study conducted in northern New York estimated cover crop biomass using green cover crop soil coverage as the explanatory variable. The researchers reported that green cover crop soil coverage explained 52% variation in aboveground cover crop biomass (Sunoj et al, 2021). The authors suggest species-specific relationships between cover crop biomass, and green cover may be needed to improve their model to account for differences in phenological characteristics.…”

Section: Relation Between Biomass and Soil Coverage Of Cover Cropsmentioning

confidence: 99%

“…Few studies have aimed to elucidate the relationship between cover crop biomass and soil surface coverage. Recently, a winter rye cover crop study reported a strong relationship between cover crop biomass and soil coverage of cover crops for conditions in New York (Sunoj et al., 2021). Such results encourage the development of digital applications, but more data across a range of locations and cover crop species (both in mixtures and monocultures) are needed to increase the predictive capacity of models and facilitate their integration into smartphone applications (Sunoj et al., 2021).…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Tillage and cover crop mixtures interseeded in maize–soybean in the upper Midwest

et al. 2023

View full text Add to dashboard Cite

Ecosystem benefits of winter-killed annual cover crops are less studied than winter hardy annuals. The objectives of this study were to determine (1) the effects of tillage practices and cover crop mixtures on biomass and soil cover of cover crops seeded into nearly mature maize (Zea mays L.) and soybean [Glycine max (L.) Merr.] and (2) if cover crop biomass can be estimated from soil surface coverage measurements. The study was conducted within two long-term tillage trials from 2016 to 2018. Tillage included conventional-(CT), strip-(ST), and no-till-(NT). Cover crops included annual ryegrass (AR; Lolium multiflorum L.); AR and crimson clover (CC; Trifolium incarnatum L.) mixture (ARCC); AR, CC, and forage radish (FR; Raphanus sativus L.) mixture (ARCCFR); and no-cover (NC). Seeding rates for AR, ARCC, and ARCCFR were 28, 36, and 40.5 kg ha −1 , respectively. The ARCCFR mix produced the most biomass (256 kg ha −1 ), followed by AR (174 kg ha −1 ) and ARCC (165 kg ha −1 ). Cover crop biomass was 260 and 136 kg ha −1 in maize and soybean; and 218, 201, and 177 kg ha −1 in CT, ST, and NT, respectively. Cover crop soil coverage between rows was 25% in maize and 14% in soybean. Cover crop biomass was associated with soil surface coverage (R 2 = 0.841). Given that cover crop biomass drives ecosystem services associated with cover crops, limited biomass and ground coverage of winter killed cover crops seeded into nearly mature maize and soybean may not add ecosystem services in the upper Midwest. INTRODUCTIONThe maize (Zea mays L.)-soybean [Glycine max (L.

show abstract

Section: Relation Between Biomass and Soil Coverage Of Cover Cropssupporting

confidence: 77%

Section: Resultsmentioning

confidence: 99%

Section: Relation Between Biomass and Soil Coverage Of Cover Cropsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Tillage and cover crop mixtures interseeded in maize–soybean in the upper Midwest

et al. 2023

View full text Add to dashboard Cite

show abstract

“…Pre‐harvest broadcast planting had greater C content at Concord and Mead, 0.16 Mg ha −1 and at 0.30 Mg ha −1 , but at Clay Center, both plantings had the same C content, 0.08 Mg ha −1 . Cover crop C may be an indicator for a cover crop's potential to sequester C from the atmosphere and is correlated with biomass production (Sunoj et al., 2021). Thus, the treatments with the greatest biomass also had the greatest C content and may have potential to increase soil organic C.…”

Section: Resultsmentioning

confidence: 99%

Cover crop planting practices determine their performance in the U.S. Corn Belt

et al. 2023

View full text Add to dashboard Cite

Cover crop growing periods in the western U.S. Corn Belt could be extended by planting earlier. We evaluated both pre-harvest broadcast interseeding and post-harvest drilling of the following cover crops: (a) cereal rye (Secale cereale L.) [RYE]; (b) a mix of rye + legumes + brassicas [MIX1], (c) a mix of rye + oat [Avena sativa L.] + legumes + brassicas (MIX2), (d) legumes [LEGU]) and (e) a no cover crop control. These were tested in continuous corn (Zea mays L.) [corn-corn] and soybean [Glycine max (L.) Merr.]-corn systems [soybean-corn] at three sites in Nebraska for their effect on cover crop productivity, soil nutrients, and subsequent corn performance. At the sites with wet fall weather, pre-harvest broadcasting increased cover crop biomass by 90%, to 1.29 Mg ha −1 for RYE and 0.87 Mg ha −1 for MIX1 in soybean-corn, and to 0.56 Mg ha −1 and 0.39 Mg ha −1 in corn-corn, respectively. At the drier site, post-harvest drilling increased biomass of RYE and MIX1 by 95% to 0.80 Mg ha −1 in soybean-corn. Biomass N uptake was highest in pre-harvest RYE and MIX1 at two sites in soybean-corn (35 kg ha −1 ). RYE and sometimes mixes reduced soil N, but effects on P, K, and soil organic C were inconsistent. In soybean-corn, corn yields decreased by 4% after RYE, and in corn-corn, by 4% after pre-harvest cover crops. Site-specific selection of cover crops and planting practices can increase their performance while minimizing impacts on corn.Abbreviations: CON, control without cover crops; GDD, growing degree days; LEGU, legume cover crop blend consisting of hairy vetch and winter pea; MIX1, cover crop mix consisting of cereal rye, hairy vetch, winter pea, and radish; MIX2, cover crop mix consisting of cereal rye, hairy vetch, winter pea, radish, oat, collard, clover; RYE, cereal rye cover crop.This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

show abstract

Mixed planting reduces the shaping ability of legume cover crop on soil microbial community structure

Che

et al. 2022

Applied Soil Ecology

View full text Add to dashboard Cite

Digital image analysis estimates of biomass, carbon, and nitrogen uptake of winter cereal cover crops

Cited by 16 publications

References 27 publications

Tillage and cover crop mixtures interseeded in maize–soybean in the upper Midwest

Tillage and cover crop mixtures interseeded in maize–soybean in the upper Midwest

Cover crop planting practices determine their performance in the U.S. Corn Belt

Mixed planting reduces the shaping ability of legume cover crop on soil microbial community structure

Contact Info

Product

Resources

About