soybean Articles
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De-inking paper sludge amendment affects weeds in the presence or absence of herbicide in a soybean-corn rotation
The application of de-inking paper sludge (DPS), a C-rich but N-poor soil amendment, can sometimes decrease plant growth. This property needs to be investigated to develop the knowledge and management methods necessary for potential weed control. Today, there is no information on the effectiveness of using DPS to control weeds within a soybean [Glycine max (L.) Merr.]-corn (Zea mays L.) rotation. ...
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Quantifying vapor drift of dicamba herbicides applied to soybean
Recent advances in biotechnology have produced cultivars of corn, soybean, and cotton resistant to the synthetic‐auxin herbicide dicamba. This technology will allow dicamba herbicides to be applied in new crops, at new periods in the growing season, and over greatly expanded areas, including postemergence applications in soybean. From past and current use in corn and small grains, dicamba vapor ...
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USDA Comment Request: Draft Documents Related to GE Soybean Deregulation
On, March 12, 2019, USDA’s Animal and Plant Health Inspection Service (APHIS) announced the publication of two draft documents related to the potential deregulation of a soybean variety GE for increased yield and resistance to the herbicide glufosinate. The draft documents are Draft Plant Pest Risk Assessment (PPRA) and Draft Environmental Assessment (dEA) for Petition to Deregulate GE ...
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Agronomic and economic performance characteristics of conventional and low-external-input cropping systems in the central corn belt
We conducted a 9-ha field experiment near Boone, IA, to test the hypothesis that yield, weed suppression, and profit characteristics of low-external-input (LEI) cropping systems can match or exceed those of conventional systems. Over a 4-yr period, we compared a conventionally managed 2-yr rotation system {corn (Zea mays L.)/soybean [Glycine max (L.) Merr.]} with two LEI systems: a 3-yr ...
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The lack of clear GMO regulation: its impact on researchers and farmers in Brazil
This paper discusses the current regulation of genetically modified organisms and derivatives used in Brazil, where GM-plants are on the verge of being approved for commercial use. The paper further uses a simulation model to assess the potential economic benefits resulting from unrestricted commercial approval of herbicide-tolerant soybeans and some other crops on the Brazilian economy. Only ...
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Making Better Herbicide Decisions with Weed Density Mapping
Proper weed control early during the growing season is essential for reducing nutrient competition, gaining optimal crop health, and preventing yield loss. Weed management in corn and soybeans can be an extremely difficult problem to tackle and, if left unmanaged, can cause nearly a 52% corn yield loss and 49% yield loss in soybeans according to research conducted by the Weed Science Society of ...
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Volunteer corn presents new challenges for insect resistance management
Genetically-modified (GM) corn (Zea mays L.) and soybean [Glycine max (L.) Merr.] dominate the North American agricultural landscape and are becoming increasingly important as biofuels. However, as herbicide-tolerance and insecticidal traits are often simultaneously expressed by individual plants, glyphosate [N-(phosphonomethyl) glycine]-resistant (GR) volunteer corn is becoming a widespread ...
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Conservation: It’s the right thing to do
A fable of six blind men and an elephant originated centuries ago somewhere on the Indian continent. In it the blind men try to identify an elephant by touching only one part. According to the fable each man came to a different conclusion as to what the elephant was. The parable illustrates that though opinions may vary, there’s some truth to be found in all of them. That’s the way ...
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ASA Survey Shows Herbicide Strategy Compliance Difficult for Farmers
The Environmental Protection Agency has proposed several pesticide registration plans that could significantly affect farmers’ abilities to utilize herbicides. EPA is responsible for approving registrations on pesticides in the United States and has consistently been found by courts to have not properly evaluated the registrations’ effects on endangered species. In order to meet ...
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Why consider pre-emergent herbicide?
Resistant weeds, dicamba training, new EPA rules and regulations, and ag companies being bought or merging together have been a few of the topics found in many ag media and publications this winter. In summary, things are continually changing in agriculture and will continue to change. One of those changes that many, if not all growers, have experienced is how to deal with weed resistance. ...
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Ninth Circuit Denies Requests to Stay Use of Enlist Duo Herbicide During Judicial Review
On August 11, 2015, the U.S. Court of Appeals for the Ninth Circuit denied a motion for a stay pending review filed on December 18, 2014, by the Natural Resources Defense Council (NRDC), as well as a subsequent stay motion filed on February 6, 2015, by the Center for Food Safety and other petitioners (Case Nos. 14-73353 and 14-73359, consolidated). Both motions requested that the court stay an ...
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Recovery of Terrestrial Plants in Vegetative Vigor and Seedling Emergence Tests from Exposure to Atrazine
Ten species of terrestrial plants, including six dicotyledonous and four monocotyledonous species, were exposed to a direct overspray of atrazine according to U.S. EPA seedling emergence and vegetative vigor study guidelines and subsequently evaluated for potential recovery. For each species, NOER, ER10, ER25, and ER50 values were calculated (where possible) for a variety of guideline required ...
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Look to Ag leader to help you comply with new Dicamba rules and regulations
Sometimes, rules and regulations come along to change how you manage your farm. The federal government’s recent action on the common herbicide ingredient dicamba is one such example, and resilient farmers may need to make some changes to comply with new regulations laid out by the U.S. Environmental Protection Agency (EPA) in October 2017. That’s when EPA ruled that three crop ...
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Environmental Groups File Opening Briefs Challenging EPA’s Decision to Register Enlist Duo
On October 23, 2015, in the U.S. Court of Appeals for the Ninth Circuit, the Natural Resources Defense Council (NRDC) and other environmental groups including the Center for Food Safety (CFS, et al.) (together, Petitioners) filed separate opening briefs in Case Nos. 14-73353 and 14-73359 (consolidated) arguing that the U.S. Environmental Protection Agency’s (EPA) decision to register Dow ...
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5 fashion-forward fibres
Famous designers and popular fashion brands have recently looked into going green by using eco-friendly fibres in the manufacture of clothing and other apparel. Many have used organically grown cotton, hemp and natural wool, yet few have looked much further. Mother Nature has many versatile products up her tailored sleeve, so take a look at some of the future trends in fashion fibres. 1. ...
By green24
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Controlling Barnyardgrass with Corn Hybrid Selection
Barnyardgrass is a summer annual grass weed with a global impact on corn production. Yield losses due to barnyardgrass competition have been estimated up to 45% or more for crops such as cotton and corn. Besides corn, it can also be a serious weed pest in rice, soybean, sugarbeet, cotton, and corn. Integrated weed management techniques can be used for control of barnyardgrass in corn. High ...
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Plant Sciences in Agriculture
Plant pathogens Microorganisms, also called as microbes, live in every part of the biosphere, including soil, water, and air. Plant pathogens are the microbes that infect plants and cause diseases. In history, some plant diseases led to tremendous negative impacts on society. In 1845, potato blight disease was prevalent in all potato growing regions in Ireland. Phytophthora infestans, a fungus, ...
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