EVALUATION OF CORN AGRONOMIC MANAGEMENT PRACTICES FOLLOWING A RYE COVER CROP

Fall implementation of a rye (Secale cereale L.) cover crop (RCC) prior to spring corn (Zea mays L.) planting is a management practice used to improve soil conservation, water quality, and limit herbicide dependence. However, corn growth and yield following a RCC is often reduced due to early-season nitrogen (N) stress and decreased plant emergence, which can limit RCC adoption. The objective(s) of this research were to evaluate corn agronomic management practices (e.g., N and seeding rate management, in-furrow (IF) starter use) following a RCC and determine which management practices can be used to limit corn stress following a RCC and improve RCC adoption. Field studies were established at three locations in Kentucky between 2017 and 2020. Our results determined IF fertilizer and/or fungicide and an above optimum N fertilizer rate did not improve corn grain yield in any site-year, and no interaction between a RCC was observed. However, a split application (5x5 starter + V6 sidedress) of N fertilizer and an elevated corn seeding rate was observed to improve corn emergence, in-season plant health, and grain yield following a RCC. Overall, our results suggest farmers should look to terminate a RCC earlier (14 – 21d before planting), use a split N application, and increase corn seeding rates to limit potential N stress, plant stand reduction, and yield loss following a RCC

Arkansas Corn and Grain Sorghum Research Studies 2023

e 2023 edition of the Arkansas Corn and Grain Sorghum Research Studies Series includes research results on topics pertaining to corn and grain sorghum production, including weed, disease, and insect management; economics; irrigation; agronomics; soil fertility; mycotoxins; cover crop management; and research verification program results. Our objective is to capture and broadly distribute the results of research projects funded by the Arkansas Corn and Grain Sorghum Board. The intended audience includes producers and their advisors, current investigators, and future researchers. The Series serves as a citable archive of research results

Arkansas Corn and Grain Sorghum Research Studies 2023

e 2023 edition of the Arkansas Corn and Grain Sorghum Research Studies Series includes research results on topics pertaining to corn and grain sorghum production, including weed, disease, and insect management; economics; irrigation; agronomics; soil fertility; mycotoxins; cover crop management; and research verification program results. Our objective is to capture and broadly distribute the results of research projects funded by the Arkansas Corn and Grain Sorghum Board. The intended audience includes producers and their advisors, current investigators, and future researchers. The Series serves as a citable archive of research results

Southeast South Dakota Experiment Farm Annual Progress Report, 2019

This is an annual report of the research program at the Southeast South Dakota Research Farm in cooperation with South Dakota Agricultural Experiment Station and the SDSU College of Agriculture, Food, and Environmental Sciences and has special significance for those engaged in agriculture and the agriculturally related businesses in the ten county area of Southeast South Dakota. The results shown are not necessarily complete or conclusive. Interpretations given are tentative because additional data resulting from continuation of these experiments may result in conclusions different from those based on any one yea

Incorporating cover crops into successful corn production systems in the Mid-south

Cover crops are known to produce many conservation benefits. However, grower adoption remains low due to various issues and poor economic returns. This study was conducted to identify factors and management practices needed to integrate cover crops into Midsouth corn production systems. The effects of cover crop species, herbicide termination timing, and mechanical termination methods on the growth, grain yields, and economic returns of corn [Zea Mays (L.)] were investigated in Mississippi. The presence of living cover crops at planting stunted corn growth when they were not terminated by herbicides at least four weeks preplant. A legume cover crop reduced corn yield only when it was terminated at planting. The inclusion of a legume benefited the system compared to cereal rye. Cover crops produced neutral to negative crop yields, and all treatments reduced economic returns. Negative economic returns and production risks will likely limit cover crop adoption by corn growers

Arkansas Soybean Research Studies 2019

The 2019 Arkansas Soybean Research Studies includes research reports on topics pertaining to soybean across several disciplines, from breeding to post-harvest processing. Research reports contained in this publication may represent preliminary or only a data set from a single year or limited results; therefore, these results should not be used as a basis for long-term recommendations. Several research reports in this publication will appear in other University of Arkansas System Division of Agriculture’s Arkansas Agricultural Experiment Station publications. This duplication is the result of the overlap in research coverage between disciplines and our effort to inform Arkansas soybean producers of the research being conducted with funds from the Soybean Check-off Program. This publication also contains research funded by industry, federal, and state agencies. The use of products and trade names in any of the research reports does not constitute a guarantee or warranty of the products named and does not signify that these products are approved to the exclusion of comparable products. All authors are either current or former faculty, staff, or students of the University of Arkansas System Division of Agriculture, or scientists with the United States Department of Agriculture, Agricultural Research Service. Extended thanks are given to the staff at the state and county extension offices, as well as the research centers and stations; producers and cooperators; and industry personnel who assisted with the planning and execution of the programs

Arkansas Corn and Grain Sorghum Research Studies 2021

The 2021 edition of the Arkansas Corn and Grain Sorghum Research Studies Series includes research results on topics pertaining to corn and grain sorghum production, including weed, disease, and insect management; economics; sustainability; irrigation; post-harvest drying; soil fertility; mycotoxins; cover crop management; and research verification program results. Our objective is to capture and broadly distribute the results of research projects funded by the Arkansas Corn and Grain Sorghum Board. The intended audience includes producers and their advisors, current investigators, and future researchers. The Series serves as a citable archive of research results

2007 Cotton Research Report

Cover title. "March 2008.

Summaries of Arkansas Cotton Research 2019

Statewide, temperatures and precipitation were mostly above average (https://www.weather.gov/lzk/cli2019atxt.htm). The 2019 season was the wettest since 2015, and the 7th wettest on record. The wettest month was May, and the driest month was September. By average temperature, the coldest month was January, and the warmest month was August. Considering departures from normal, the most significant warmth occurred in September, which was 7.0 degrees above average. Many fields were muddy or underwater, given a lot of rain early in the year, and extensive river flooding (including the historic Arkansas River flood). It was far too wet in some areas of the state for any planting during the beginning of the growing season. In August, The United States Department of Agriculture (USDA) released a report stating that Arkansas had 38,068 acres of cotton unplanted (or prevented) (https://www.fsa.usda.gov/news-room/news-releases/2019/report-farmers-prevented-from-planting-crops-on-more-than-19-million-acres). Arkansas producers harvested 610,000 acres of cotton in 2019, up 27% from 2018 (https://www.nass.usda.gov/Statistics_by_State/Arkansas/Publications/Crop_Releases/Annual_Summary/2019/arannsum19.pdf). The yield is expected to average 1102 pounds per harvested acre, down 31 pounds from last year. Production is estimated at 1.40 million bales, up 24% from 2018. In the last five years, cotton acreage in Arkansas has steadily increased from an all-time low of 210,000 acres in 2015 to 610,000 planted acres in 2019. One reason for the increase can be attributed to a downturn in prices received by producers for commodities such as corn and soybean, which compete for acres with cotton. This increase of acres continues to push our ginning capacity of 28 gins in 2018 and on-farm picker capacity to the limit. Arkansas producers have averaged 1124 lb lint/ac over the last five years producing an average of 860,000 bales per year. Total average value of Arkansas cotton to the Arkansas economy has been over 284 million dollars per year. Each of the last five years has yields that rank historically in the top 7 of all time. Arkansas currently ranks fourth in 2019 cotton production behind Texas, Georgia, and Mississippi

Arkansas Soybean Research Studies 2015

Arkansas is the leading soybean-producing state in the mid-southern United States. Arkansas ranked 10th in soybean production in 2015 when compared to the other soybean-producing states in the U.S. The state represents 4.0% of the total U.S. soybean production and 3.7% of the total acres planted to soybean in 2015. The 2015 state soybean average was 49 bushels per acres, 0.5 bushel per acres less than the state record soybean yield set in 2014 (Table 1). The top five soybean-producing counties in 2015 were Mississippi, Desha, Poinsett, Phillips, and Arkansas Counties. These five counties accounted for 35% of soybean production in Arkansas in 2015