55 – 63 of 715 Results
01-2023 Cook Management of Soybean Insects Annual Report
Up to date non-biased information is critical for making any agricultural management decision, including insect management decisions. As production practices change, the impact of pests can change also. An example of this is greater risk from early season/soil insects as a result of reduced tillage and increased plant residue from the previous crop, native winter vegetation, and/or cover crops. Also, uncommon and unexpected insect pest issues can occur. For example, redbanded stink bug infestations were much more widespread during 2017 and 2022, and soybean looper during 2022. As a result, many studies were conducted with regard to management, damage potential, and treatment thresholds. Also, many current management tools are under reregistration review. It is possible that some of the older insecticides, which growers rely on, may have uses either restricted or revoked in the near future.
C3 and C4 Plants--MSSOY White Paper
The differences between C3 and C4 plants is summarized and discussed.
The Crop [Plant-Soil] Microbiome
Pertinent points about the Crop Microbiome and its importance to crop production are presented.
62-2022 Improving dryland soybean yield, profit, and health of dominant soils across Mississippi Final Report
The integration of cover crops and poultry manure into existing soybean cropping systems could potentially improve soil health in the east-central Mississippi. This study evaluated the influence of different cover crop species and fertilizer treatments on soil physical and soil chemical properties at the Pontotoc Ridge-Flatwoods Branch Experiment Station in Pontotoc County, MS. The study was initiated in October 2017 and carried out through October 2022. The field trials were conducted under no-tillage, rainfed conditions. The cover crop treatments included cereal rye, hairy vetch, winter wheat, mustard and cereal rye, and native vegetation. The three fertilizer treatments included poultry litter, commercial inorganic fertilizer and no fertilizer.
51-2022 Sicklepod extract formulations as natural and effective deer and insect repellent final report
This study aimed to evaluate the efficacy and compatibility of a sicklepod extract-herbicide tank-mix for deer and insect management in soybean crops. Field trials were conducted over multiple quarters, involving various treatments and measurements. The field trials examined the impact of different herbicide combinations on deer browsing and insect populations in soybean plots. Weeds were found to interfere with deer browsing, as glyphosate-treated plots without weed cover experienced the most damage. Insect data collection revealed the presence of leaf-chewing insects and other bugs.
Renewable Diesel from Soybean Oil--MSSOY White Paper
Information about Renewable Diesel [RD] production from soybean oil is presented and summarized from linked articles.
31-2022 Impacts of charcoal rot (Macrophomina phaseolina) epidemiology on drought resistant soybean cellular metabolism and accompanying tissue microbiome for identifying alternative breeding targets under increasing environmental stress Annual Report
Critical stages of Mp infection in soybean initiate host responses that impact the metabolome. NMR is a rapid, inexpensive, and high throughput detection technique for determining metabolites that may indicate potential defense mechanisms within host plants. NMR spectra can be used to analyze the presence of a variety of compounds, from carbohydrates to amino acids. Many of these metabolites are associated with host cell responses, redox signaling, and energy production critical to plant growth. If hybrid resistance to Mp does occur through drought resistance, these metabolic biomarkers could provide targets for downstream genetic marker identification, thereby guiding new breeding strategies.
10-2022 Tagert Low-Cost Precision Agriculture Solutions for Advancing Irrigation Efficiency Annual Report
Variable-rate irrigation (VRI) is the precision agriculture practice of customizing irrigation amounts to different areas within a field based on the unique characteristics of each area. VRI can be used to compensate for and minimize problems associated with in-field spatiotemporal variability, especially that of soil moisture. However, the initial and maintenance costs of zone control VRI are often daunting, and the fear of managing these systems discourages farmers from adopting this technology. Sector control VRI systems are less expensive and easier to operate because only the revolution speed of the center pivot is adjusted, and most late-model center pivots can be programmed to travel at a different speed (and thus apply a different irrigation amount) in each of several pie-shaped sectors without additional control panel upgrades. On fields where the distribution of wetter/drier areas match well with the geometry of pie-shaped sectors, the use of sector control VRI is an ideal solution for advancing irrigation efficiency beyond what is possible with conventional uniform irrigation.
12-2022 Tagert Managing Iron Deficiency Chlorosis (IDC) Through a Cropping System Approach Final Report
There have been numerous studies in other states on different management strategies to address IDC and what factors are causing the symptoms and intensity. One study indicated that using an oat companion crop increased soybean yields in affected areas of a field. It has also been noted that soybeans planted in tractor wheel tracks in Mississippi and Minnesota IDC-prone fields have greener plants due to soil compaction. Soil compaction is considered a poor management system for farmers and reduces yields, but this tractor wheel compaction is thought to reduce soil nitrate levels by creating slightly anaerobic soil conditions that can result in nitrogen loss by denitrification.