199 – 207 of 716 Results
52-2019 Cover Crop and Tillage Effects on Irrigation Application Efficiency, Runoff Volume, Transport, Soybean Grain Yield and Net Returns, Final Report
This research was conducted to determine whether the efficiency of furrow-irrigation systems could be manipulated through conservation tillage systems while maintaining soybean productivity and profitability.
14-2019 Determination of organisms affecting soybean seed quality and fungicide efficacy in reducing associated losses
Soybean growers in the mid-southern U.S. have suffered economic losses from reduced quality of harvested soybean seed. Phomopsis/ Diaporthe complex are one of the most important seed borne diseases affecting the quality of seed. Symptoms of this disease include shriveled, elongated seed which appear chalky and have reduce seed germination and emergence. Seed will also have reduced oil content and viability which will incur potential docking at the grain elevator. Seed infection is more severe when harvest is delayed and environmental conditions continue to be warm and humid during late season and harvest.
18-2019 2,4 D and Dicamba Resistant Soybeans: Stewardship and Testing Final Report
Increased use of 2,4-D in row crop production may lead to increased cases of damage to susceptible cotton and soybeans following off-target movement (OTM) of 2,4-D. Research was conducted in 2017 and 2018 in Starkville, MS to develop a method using chemometrics and spectroscopy to produce classification models capable of identifying specific 2,4-D formulations present in damaged crop tissue. 2,4-D acid (ACID), dimethylamine salt (DMA), choline salt (CHOLINE), and isooctyl ester (ESTER) were applied to susceptible cotton and soybeans at 33, 17, 8, 4, 2, and 1 g 2,4-D ae ha-1, and samples were analyzed via infrared spectroscopy to generate spectra which were then analyzed by principal component analysis (PCA) and linear discriminant analysis (LDA).
06-2019 Turner Effect of Purple Seed Stain on Seed Quality and Composition in Soybean Research and Reports
Purple seed stain disease, caused by (Cercospora kukuchii), is a major concern in soybean (Glycine max (L.)) in Mississippi, USA, due to its effects on seed quality, reducing soybean seed grade and potential market price at elevators. Therefore, investigating the effects of purple seed stain (PSS) on seed quality (germination and vigor) and seed composition (nutrition) is critical.
34-2019 Petterson Identification of Mycotoxins Used in Soybean Root Infection by Macrophomina Phaseolina and Other Fungi Annual Report
The objective of the proposed research is to better understand the range of mycotoxin types used by isolates of M. phaseolina and other pathogenic fungi from soybean plants to facilitate root infection. Potential remediation strategies, including biochar binding of the mycotoxins in soil around root tips, will be explored.
Pest Severity Training Tool for Estimating Insect and Disease Damage to Soybean Leaves
A tool devised by the Crop Protection Network can be used by crop scouts, researchers, and producers to properly estimate the amount of leaf damage caused by disease and insect pests of soybeans.
Free Nematode Sampling Offered From MSU Plant Diagnostic Lab
What a great opportunity for our soybean growers in Mississippi. The guess work has been taken out of your fields if you only sample. The free nematode testing has been extended to the end of 2021. Although in Mississippi the root-knot and reniform nematodes are more of an issue in grower’s fields we have included in this testing period the addition of soybean Cyst Nematode (SCN)
Foliar Fertilization of Soybeans--MSSOY White Paper
A White Paper discussing the pros and cons of foliar fertilization of soybeans is presented.
28-2019 Crop Rotations and Risk Management for Mississippi Soybean Producers Final Report
Crop rotations are economically significant on both the mean and variance of expected crop yields. This is because an effective crop rotation reduces year-to-year pest pressure, replenish soil nutrients, and increase plant vitality. Soybeans play a unique role in these rotation schemes by fixing atmospheric nitrogen into the soil. In the research, we study the role of crop rotations in farmers’ risk management decisions. Specifically, we aim to answer the question: as farmers face unknown future prices, unpredictable weather, and uncertain yields, how do crop rotations’ agronomic effects impact farmers’ optimal planting decisions? And beyond that: what is the economic value of optimizing crop rotations for a soybean farmer?