Corn response to in‐furrow fertilizer and fungicide across rye cover crop termination timings

Quinn, Daniel J.; Poffenbarger, Hanna J.; Leuthold, Sam J.; Lee, Chad D.

doi:10.1002/agj2.20723

Cited by 12 publications

(14 citation statements)

References 74 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Maintaining winter annual weeds in no‐till, rainfed, claypan soils could be more cost‐effective to a farmer because no seed or seeding costs were associated with the winter annual weed CC system unless the grass CCs were grazed. Similar reductions in corn grain yield following small grain CCs have been observed in other locations (Kaspar & Bakker, 2015; Quinn et al., 2021). This indicates that research is needed to mitigate this yield loss risk, or alternative CCs need to be identified that minimize corn yield loss.…”

Section: Resultssupporting

confidence: 77%

“…However, there was no significant effect of CC on corn plant population at harvest (P = .7664). While planter down pressure has been considered a concern in other CC research (Quinn et al, 2021), it could be a greater issue when planting corn following soil that has been grazed and has greater penetrometer resistance (Figure 2), which may explain differences in plant populations and yields between grazed and nongrazed treatments. This research also indicates that corn is not as resilient at tolerating compaction caused by grazing cattle in no-till, claypan soils compared with soybean.…”

Section: Corn Responsementioning

confidence: 99%

See 1 more Smart Citation

Grazing cover crops in a no‐till corn and soybean rotation

2022

View full text Add to dashboard Cite

Cover crop (CC) systems may offset expensive hay feeding in early spring. Field research evaluated the effect of CCs on forage mass, weed control, soil penetrometer resistance, and no‐till corn (Zea mays L.) and soybean [Glycine max (L.) Merr.] grain yield (2003–2008) in upstate Missouri. The main plot was grazed and nongrazed CCs, corn and soybean were the subplots, and CCs [nonseeded control, cereal rye (CR, Secale cereale L.), wheat (Triticum aestivum L.), ‘King’ or ‘Marshall’ annual ryegrass (RG, Lolium multiflorum Lam.)] were the sub‐sub plot. Cover crops were grazed two to four times in the spring when the fastest growing species was 20–30 cm tall. Forage mass was collected from the nongrazed treatment. Cereal rye produced the greatest total forage mass in 3 and 4 of 6 yr following corn and soybean, respectively. Cereal rye forage mass (3,640 kg ha−1) was similar to wheat following corn and was 860 kg ha−1 greater than wheat following soybean. Winter annual weeds were controlled up to 92% with CCs. Cattle (Bos taurus) grazing CCs increased penetrometer resistance up to a 20‐cm soil depth compared with nongrazed CCs. Corn grain yield was reduced 0.4 Mg ha−1 following grazed CCs, while soybean yields following grazed CCs were similar to nongrazed treatments (4–6 yr). Corn yields following CCs were ranked nonseeded control = Marshall RG ≥ wheat ≥ King RG ≥ CR. Soybean yields following CCs were similar or less than the nonseeded control. Grazing CCs could add value over the absence of the CC and promote CCs in the U.S. Midwest.

show abstract

Section: Resultssupporting

confidence: 77%

Section: Corn Responsementioning

confidence: 99%

Grazing cover crops in a no‐till corn and soybean rotation

2022

View full text Add to dashboard Cite

show abstract

“…Quinn et al. (2021) also reported a greater C/N ratio of cereal rye terminated 1 d after corn planting compared with rye terminated 21 d before corn planting. Another contributor could be the greater later‐season soil VWC in PG than PK.…”

Section: Resultsmentioning

confidence: 94%

“…Conversely, in Kentucky in a 2‐yr study at one location, Quinn et al. (2021) found that compared with early‐terminated rye, a postplant‐terminated rye conserved soil moisture early in the corn growing season. Further, Clark et al.…”

Section: Resultsmentioning

confidence: 99%

“…Liebl et al (1992) exposed some drawbacks to delayed rye termination and reported that in one dry year of their four-year study in Urbana, Illinois, rye killed at soybean planting significantly depleted soil moisture to 60 cm, even when measured 5 and 7 wk later. Conversely, in Kentucky in a 2-yr study at one location, Quinn et al (2021) found that compared with early-terminated rye, a postplant-terminated rye conserved soil moisture early in the corn growing season. Further, Clark et al (1997) reported that rye and vetch actively growing up to one week before corn planting in Maryland did not deplete soil moisture before CC termination and con-served soil moisture after termination compared with a no-CC control.…”

Section: Soil Vwc and Temperaturementioning

confidence: 95%

See 1 more Smart Citation

Does winter cereal rye seeding rate, termination time, and N rate impact no‐till soybean?

Reed

Karsten

2022

Agronomy Journal

View full text Add to dashboard Cite

Some farmers who use cover crops (CCs) have moved from CC preplant kill (PK) to delayed CC termination, called planting green (PG). We conducted a study to explore if soil conditions and crop production can be optimized by manipulating winter cereal rye (Secale cereal L.) seeding rate and spring N topdress rate for these two termination times. Treatments were arranged in a split‐split plot, randomized complete block design with four replications for three years at two Pennsylvania locations. Main plots were seeding rate (34, 67, and 134 kg ha−1, or 1x, 2x, and 4x, respectively), subplots were termination timing (PK and PG), and sub‐subplots were N rate (34 and 67 kg ha−1, or low and high, respectively). Planting green nearly doubled rye biomass at both sites, and at Landisville the high N rate accumulated 17% more biomass than the low N rate, while there was no biomass N rate effect in PK. Soil in PG was 7–15% drier at planting, up to 7% wetter later, and up to 0.9–1.3 °C cooler compared with PK at both sites. Soybean (Glycine max L.) yield was reduced by 3–4% when PG was paired with the high N rate across seeding rates at Rock Springs and with the 1x seeding rate at Landisville compared with other treatment combinations. Soybean population was not impacted by treatments. We conclude rye seeding and N topdress rates of 34 kg ha−1 in PG can maintain similar conditions and soybean yield equivalent to PK, thereby reducing seed and N costs.

show abstract

Cereal rye cover crop seeding method, seeding rate, and termination timing effects corn development and seedling disease

et al. 2023

View full text Add to dashboard Cite

Cover crops decrease nutrient leaching from high-input cropping systems and improve soil quality. In Iowa, cereal rye (CR, Secale cereale L.) is the most adopted species due to its winter hardiness, high biomass productivity, and low cost. Field management of CR is still not completely understood, and as its adoption brings more complexity to farmers, especially with the uncertain effects on corn (Zea mays L.) yields, adoption is slow. Additionally, cover crops immobilize N and increase the inoculum of pathogens such as Pythium spp. A 2-year field experiment was conducted at three locations in Iowa investigating the effect of two seeding methods, three seeding rates, and two termination timings (one location only) of CR on CR biomass and corn growth, root disease, and yield. Cereal rye biomass and consequently corn growth and development were not affected by seeding rate but by seeding method and termination timing. Broadcast CR produced an average of 3.5 times more biomass but 7.2% less corn yield than the drilled CR. Cereal rye when terminated late (3 days before planting [DBP]) produced 2.1 times greater biomass but 4.1% less corn yield compared to early termination (14 DBP). In general, greater root rot incidence and more Pythium clade B were detected in corn seedlings sampled from broadcast CR than drilled CR. Radicle rot incidence of corn was also greater in the late-terminated plots in 1 year. Farmers should be careful using broadcast seeding and later termination of CR cover crop when planted before corn.

show abstract

Corn response to in‐furrow fertilizer and fungicide across rye cover crop termination timings

Cited by 12 publications

References 74 publications

Grazing cover crops in a no‐till corn and soybean rotation

Grazing cover crops in a no‐till corn and soybean rotation

Does winter cereal rye seeding rate, termination time, and N rate impact no‐till soybean?

Cereal rye cover crop seeding method, seeding rate, and termination timing effects corn development and seedling disease

Contact Info

Product

Resources

About