Weed Management

“Cereal rye alone or in a mix with crimson clover and hairy vetch pushed back the critical timing for weed removal in soybean by about 2 weeks compared to winter fallow, and shrank the critical weed-control window (2019: 0 wk for rye alone and 4.8 wk for the mix vs. 5.1 wk fallow; 2020: 0.1 and 1.4 wk vs. 2.6 wk). Single-species cereal rye gave the strongest early-season weed suppression, giving growers more flexibility in timing herbicide or other weed control passes.”

“Combining narrower corn rows with herbicide programs increased light interception and improved control of resistant Palmer amaranth — an integrated tactic that reduces reliance on chemicals alone.”

“For Nebraska's number-one food-grade white corn — which can't use glyphosate — pre-emergence herbicides were tested to control multiple-herbicide-resistant Palmer amaranth and curb its seed production.”

“Spraying resistant Palmer amaranth while it is small (10–15 cm) sharply improved control and cut seed production in herbicide-resistant corn — a clear timing rule for Nebraska growers.”

“Overlapping residual-herbicide programs controlled herbicide-resistant Palmer amaranth in Nebraska seed-corn fields, protecting both yield and net economic returns.”

“The destruction of the South Vietnamese rice crop using an arsenic-based herbicide known as Agent Blue during the American Vietnam War was not a secret; however, it received little media attention in the United States.”

“Cover crop effectiveness varies in cover crop-based rotational tillage organic soybean systems based on species and environment.”

“Agronomic Comparisons of Organic and Conventional Soybean with Recommended and High Inputs during the First 4 Years of Organic Management.”

“Field-scale experiments reveal persistent yield gaps in low-input and organic cropping systems.”

“This study compared weed control, crop yields, herbicide use, and economic performance of red clover and hairy vetch in a notill winter cereal–green manure–corn silage cropping sequence in central Pennsylvania.”

“Elucidating relationships between the soil food web, soil processes, and agroecosystem function is a critical step toward a more sustainable agriculture. Soil and crop management practices can alter these relationships, and their effects can persist even after imposing new management practices.”

“A handbook for restoration of sagebrush steppe ecosystems with emphasis on greater-sage-grouse habitat—Part 3. Site level restoration decisions.”

“Creating a Successful Citizen Science Model to Detect and Report Invasive Species.”

“Integrated weed management with strategic tillage can maintain soil quality in continuous living cover systems.”

“Kentucky bluegrass (Poa pratensis) invasion in the Northern Great Plains: A story of rapid dominance in an endangered ecosystem.”

“Invasion of Acacia mangium in Amazonian savannas following planting for forestry.”

“Functionally diverse cover crops support ecological weed management in orchard cropping systems.”

“Review of Tarping and a Case Study on Small-scale Organic Farms.”

“Delayed cover-crop termination and reduced herbicide inputs produce trade-offs in soybean phase of US Northeast forage-grain rotation.”

“Glyphosate-resistant Palmer amaranth: A threat to conservation tillage.”

“Planting Date Impacts on Soil Water Management, Plant Growth, and Weeds in CoverCropBased NoTill Corn Production.”

“Cover-Crop Roller–Crimper Contributes to Weed Management in No-Till Soybean.”

“Blackgrass resistance to ACCase and ALS herbicides mostly arises from resistance alleles already present in populations, not new mutations — 23 of 27 ACCase-resistant and 6 of 9 ALS-resistant populations carried two or more distinct resistance haplotypes. Because resistance is pre-loaded in the seedbank, rotating herbicide modes of action early and diversifying non-chemical control matters more than hoping to outrun new mutations.”

“High seeding rates and low soil nitrogen environments optimize weed suppression and crop yield in organic no-till planted soybean.”

“Indaziflam is a promising herbicide for conservation purposes in areas where the invasive species seed bank needs to be depleted with as little disturbance to biocrusts as possible.”

“Earlier fall precipitation and low severity fire impacts on cheatgrass and sagebrush establishment in the Great Basin.”

“Fall–winter cover crops promote soil health and weed control in the southeastern clayey soils.”

“Cover crops and preemergence herbicides: An integrated approach for weed management in corn-soybean systems in the US Midwest.”

“Evaluating efficacy of preemergence soybean herbicides using field treated soil in greenhouse bioassays.”

“This study investigated the effects of different cereal rye termination timings on weed control and corn performance in a two-pass herbicide program across 5 site-years in Arkansas, USA.”

“A field experiment was conducted to estimate the influence of a high biomass crimson clover cover crop and conservation tillage on the critical period of weed control in corn.”

“Alternative performance targets for integrating cover crops as a proactive herbicide-resistance management tool.”

“Cereal rye seeding rate does not affect magnitude of weed suppression when planting green within Mid-Atlantic United States.”

“Equipment Development for Small and Urban Conservation Farming Systems.”

“Cover crop-based reduced tillage (CCBRT) systems can provide multiple benefits in cucurbit cropping systems, including potential to reduce spread of soil-borne pathogens, minimize erosion, and decrease weed pressure.”

“The effect of tarp duration and tillage intensity on weeds and beet crop yields was evaluated at three locations and over 2 years.”

“Black plastic tarps applied on the soil surface and removed at planting can help suppress weeds before planting and reduce farmers’ reliance on tillage.”

“An experiment conducted at the University of Wisconsin's Arlington Agricultural Research Station from 2021 to 2022 examined both pre and postcorn planting management strategies of a red clover living mulch on clover growth, weed biomass, corn plant population, and grain yield.”

“Weed control, soil health, and yield tradeoffs of between-bed management strategies in organic plasticulture vegetable production.”

“The effects of annual and perennial cover crops on Palmer amaranth (Amaranthus palmeri) population dynamics.”

“Applying coal combustion residue as a carbon amendment (3.3–19.7 Mg C/ha) in a western Nebraska dry bean–maize–sugarbeet rotation gave no consistent yield benefit over three years, with only weak yield trends (p = 0.07–0.22) in some crop-years. It did not reduce herbicide effectiveness on weeds, though one mid-rate treatment cut maize yield where saflufenacil + dimethenamid-p was applied.”