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Iowa Seed & Biosafety News (Vol. 33, No. 1), Iowa State University Seed Science Center Jan 2017

Iowa Seed & Biosafety News (Vol. 33, No. 1), Iowa State University Seed Science Center

Iowa Seed & Biosafety News

Contents: Iowa State, Andhra Pradesh government partner to establish mega seed park; AP delegation to participate in World Food Prize side-event; Misra receives Global Academic Leadership Award; Center commisions maybe Seed documentation; STB offers new short course; 2017 Leroy & Barbara Everson Symposium highlights; SARI Core of Excellence laungh; USAID Ghana Ag Policy Support Project; Leafstedt named Misra Scholar; Awards, recognitions, activities; Maunder recognized in Sorghum grower; Online grad program celebrates 10 year; Commentary" Testing for Dicamba tolerance,; Recriting seed analysts; Center trsains delegation from China's Jilin Academy of Ag Sciences ;'Hunger Fighter' scholarship recipient to be announced at world food prizze; 2007 Summer ...


2016 Statewide List Of Csa Farms And Organizers Serving Iowa, Savanna M. Lyons, Alice Topaloff Mar 2016

2016 Statewide List Of Csa Farms And Organizers Serving Iowa, Savanna M. Lyons, Alice Topaloff

Extension and Outreach Publications

This directory lists 79 community supported agriculture (CSA) enterprises serving Iowa, shown by county and the 20 regions within ISU Extension and Outreach.


Iowa Seed & Biosafety News (Vol. 32, No. 1), Iowa State University Seed Science Center Jan 2016

Iowa Seed & Biosafety News (Vol. 32, No. 1), Iowa State University Seed Science Center

Iowa Seed & Biosafety News

Contents: New scholarship honors global food security advocate David Lambert; Vilsack, Cuvban delegation visit Seed Science Center; Haryana Minister of Agriculture discusses ag practices; Seed health testing staff make commitment to excellence; Advancements in seed counting technologies prompt rule change proposal; Research highlights; Awards, recognitions, activities; Summers named Misra Scholar; Symposium highlights 'REAL Sustainability'; ISU signs MOU with Zomorano Agricultural School; Outstanding achievement awards honor Shepherd Jenkins, Lambert; Symposium poster competition winner named; STB holds first lunch and learn; Commentary: Weighing in on cover crops, Palmer amaranth; Guntuku works with USAID ATT Program in Ghana; Telangana Ag Minister visits ISU ...


Nitrogen Use In Iowa Corn Production, John E. Sawyer May 2015

Nitrogen Use In Iowa Corn Production, John E. Sawyer

Extension and Outreach Publications

Nitrogen (N) is an essential element for plant growth and reproduction, and management is critical for optimal yield in Iowa corn production systems. It is involved in many important plant biochemical processes, such as photosynthesis, and plant components such as amino acids, proteins, and chlorophyll. Plants require N to produce the chlorophyll used in photosynthesis; and it’s chlorophyll that gives plants their green color. Plants growing with an adequate supply of N have a dark green color; if N is deficient plants are less green, and yellow in color, lack vigorous growth, and have reduced yield. Legumes like alfalfa ...


Corn Suitability Rating 2 (Csr2) Equation And Component Values, C. L. Burras, G. A. Miller, T. E. Fenton, A. M. Sassman Mar 2015

Corn Suitability Rating 2 (Csr2) Equation And Component Values, C. L. Burras, G. A. Miller, T. E. Fenton, A. M. Sassman

Extension and Outreach Publications

CSR2 is a corn suitability rating calculated using six parameters. The “perfect corn producing” soil gets a rating of 100. A soil having nearly no potential to grow corn receives a rating of 5. Most soils have ratings somewhere in between. CSR2 is calculated on a map unit (MU) basis using the maps and data of the Iowa Cooperative Soil Survey (ICSS). Since the ICSS includes several agencies with sometimes slightly different data there are two ways it can be calculated. The first is CSR2-ISU, which assumes a MU is the soil series listed in the MU name. The second ...


On-Farm Study Researches Novozymes Fermentation Spent Residuals, Charles S. Wortmann, John Sawyer, Steve Tonn Mar 2015

On-Farm Study Researches Novozymes Fermentation Spent Residuals, Charles S. Wortmann, John Sawyer, Steve Tonn

Extension and Outreach Publications

The Novozymes enzyme-manufacturing facility in Blair, Neb. produces enzymes through aerobic fermentation of non-pathogenic and non-toxigenic microorganisms. The process generates a solid byproduct consisting of lime-stabilized spent microbial biomass (LSSMB) (Figure 1).


Iowa Seed & Biosafety News (Vol. 31, No. 1), Iowa State University Seed Science Center Jan 2015

Iowa Seed & Biosafety News (Vol. 31, No. 1), Iowa State University Seed Science Center

Iowa Seed & Biosafety News

Contents: Memorial fundraising initiative honors seed pathologist Lisa Shepherd Jenkins; Remembering Lisa Shepherd Jenkins; ISU part of grant to improve ag policy in Ghana; Misra participates in PUSH Forum; Maier named GFSC associate director; Global Seed Program update; New manual introduces process management concepts; Guntuku joins Global Seed Program; ASTA scholarship recipients; Genome editing: New opportunity for crop improvement?; Symposium focuses on whole systems approach to food security; MAunder earns achievement award; Brumm named Global Professor in Food Security; GFSC Heat Stress Symposium; Hoemann named Misra Scholar; Phomopsis concerns for soybean; STB program increases courses; Physical, physiological changes in prematurely ...


Iowa Seed & Biosafety News (Vol. 30, No. 1), Iowa State University Seed Science Center Jan 2014

Iowa Seed & Biosafety News (Vol. 30, No. 1), Iowa State University Seed Science Center

Iowa Seed & Biosafety News

Contents: 'Closing the Yield Gap' Symposium focuses on innovation in science for global food security; Center co-hosts Ghana ATT Biosafety Workshop; Misra named Seed Science Endowed Chair; Stahr colaborates on Ghana lab; SEMIs seed plant complete; Shyy speaks at SEMIs workshop; Awards and recognitions; Krohn joins GFSC; Research Highlight: Miscanthus Senensis; Youngberg fosters sense of community for STB program; Center supports undergraduate learning; Cortes and Harries retire; Harries earns Outstanding Achievement Award; Petersen named Misra Scholar; Wolt participates in biotech activities; Seed Lab commentary: Mike Stahr; Research Highlight: New use for 'old' vigor test; Seed Science Center profiles


2013 Herbicide Guide For Iowa Corn And Soybean Production, Micheal D. K. Owen Dec 2013

2013 Herbicide Guide For Iowa Corn And Soybean Production, Micheal D. K. Owen

Agriculture and Environment Extension Publications

The success of weed management programs, more specifically herbicide programs, varied considerably during 2012 reflecting the importance of environmental conditions on herbicide performance. Variability of success was seen not only in the postemergence herbicide applications that continue to dominate herbicide use but also in the soil-applied residual herbicides; all herbicide applications were strongly influenced by tillage system, crop planting date, timing and amount of rainfall, and resulting weed emergence timing. While more soil-applied herbicides were used in Iowa during 2012, there are still too many acres of corn and soybean that are treated only with glyphosate. Importantly, the trend of ...


Manure Application To Soybeans, Matthew J. Helmers, Rick Koelsch, Quirine Ketterings, John Lory Jul 2013

Manure Application To Soybeans, Matthew J. Helmers, Rick Koelsch, Quirine Ketterings, John Lory

Agricultural and Biosystems Engineering Extension and Outreach Publications

During the last decade, the number and size of confined animal feeding operations has continued to increase. In the Midwest, corn is the primary recipient of liquid manure from these facilities. However, while the density of production animals has continued to increase, the corn acreage available for manure application has not. To avoid over-application of manure to corn land, producers are pursuing other crops such as soybeans and alfalfa as alternative crops to receive manure.


Site-Specific Nutrient Management: For Nutrient Management Planning To Improve Crop Production, Environmental Quality, And Economic Return, Agustin Pagani, John E. Sawyer, Antonio Mallarino May 2013

Site-Specific Nutrient Management: For Nutrient Management Planning To Improve Crop Production, Environmental Quality, And Economic Return, Agustin Pagani, John E. Sawyer, Antonio Mallarino

Extension and Outreach Publications

Consistent use of nutrient management planning has been identified by USDA/NRCS as lacking on many farms in the USA (Conservation Effects Assessment Project (CEAP), Assessment of the Effects of Conservation Practices on Cultivated Cropland in the Upper Mississippi River Basin). It has also been shown that all resource concerns are rarely achieved with a single conservation practice. Implementation of site specific nutrient management planning to minimize nutrient loss, conservation practices to control runoff, and practices to trap materials leaving the field should be utilized as a combination of efforts. In combination, these practices have the ability to reduce agricultural ...


Understanding Soybean Plant Population Recommendations For Iowa, Terry L. Basol, David Wright, Andrew W. Lenssen Jan 2013

Understanding Soybean Plant Population Recommendations For Iowa, Terry L. Basol, David Wright, Andrew W. Lenssen

Agriculture and Environment Extension Publications

Concerns over rapidly escalating seed prices have caused farmers, agronomists, and seed suppliers to revisit soybean planting rates. This publication discusses optimum soybean planting rates in Iowa and surrounding states. This is a must read for those who want to reduce their seed input costs


Recognizing Challenges To Iowa’S Annual Cropping Systems, David Wright, Andrew W. Lenssen Jan 2013

Recognizing Challenges To Iowa’S Annual Cropping Systems, David Wright, Andrew W. Lenssen

Agriculture and Environment Extension Publications

Iowa’s soybean and corn cropping systems are among the most productive in the world yet, producing consistently high yields remains uncertain. This publication discusses possible solutions to problems that limit soybean yield in Iowa.


Humic And Fulvic Acids And Their Potential In Crop Production, David Wright, Andrew W. Lenssen Jan 2013

Humic And Fulvic Acids And Their Potential In Crop Production, David Wright, Andrew W. Lenssen

Agriculture and Environment Extension Publications

Humic and fulvic acids may have uses in Iowa’s large-scale production systems to improve seedling health and plant response to stress. This publication discusses the benefits and limitations of these intriguing organic compounds in soybean production.


Selecting Soybean Varieties, Joel L. Dejong, David Wright, Andrew W. Lenssen Jan 2013

Selecting Soybean Varieties, Joel L. Dejong, David Wright, Andrew W. Lenssen

Agriculture and Environment Extension Publications

Selecting the right combination of high yielding genetics and agronomic traits is the first management decision toward a successful soybean crop. This publication provides the reader with several tools that can be used to select high yielding soybean varieties best-suited to Iowa growing conditions.


Inoculant Use On Soybean Seed, David Wright, Andrew W. Lenssen Jan 2013

Inoculant Use On Soybean Seed, David Wright, Andrew W. Lenssen

Agriculture and Environment Extension Publications

Inoculating soybeans with products containing the bacterium Bradyrhizobium japonicum is considered an inexpensive management practice to increase yield. However, yield gain from inoculants on soybean is inconsistent. This publication discusses the benefits and limitations of inoculant use on soybean.


Influence Of Tillage On Soybean Production In Iowa, David Wright, Mahdi Al-Kaisi, Andrew W. Lenssen Jan 2013

Influence Of Tillage On Soybean Production In Iowa, David Wright, Mahdi Al-Kaisi, Andrew W. Lenssen

Agriculture and Environment Extension Publications

Tillage helps manage residue, controls weeds, incorporates soil amendments and is used extensively to prepare a seedbed for planting. However, research shows that tillage has little effect on soybean yields in Iowa. This publication identifies how no-tillage can reduce input costs without sacrificing soybean yield.


Soybean Nutrient Needs, Clarke Mcgrath, David Wright, Antonio P. Mallarino, Andrew W. Lenssen Jan 2013

Soybean Nutrient Needs, Clarke Mcgrath, David Wright, Antonio P. Mallarino, Andrew W. Lenssen

Agriculture and Environment Extension Publications

Maintaining a fertile growing environment is a risk management strategy that produces higher yield and healthier plants that better manage stress. This publication outlines crop nutrient removal rates, foliar fertilization and the influence of soil fertility on plant health.


Intermediate Row Width Can Increase Soybean Profits, David Wright, Andrew W. Lenssen, Virgil L. Schmitt Jan 2013

Intermediate Row Width Can Increase Soybean Profits, David Wright, Andrew W. Lenssen, Virgil L. Schmitt

Agriculture and Environment Extension Publications

Midwest research has documented that soybeans yield better when grown in 15 inch rows. However, there are limitations; some diseases of soybean can eliminate potential yield gains. This publication discusses several factors that should be considered when growing soybean in 15 inch row widths.


Iowa Seed & Biosafety News (Vol. 29, No. 1), Iowa State University Seed Science Center Jan 2013

Iowa Seed & Biosafety News (Vol. 29, No. 1), Iowa State University Seed Science Center

Iowa Seed & Biosafety News

Contents: Global Food Security Consortium holds inception workshop; GFSC, Heifer International partner to end hunger; Chinese maize breeders train at Seed Science Center; COMESA ag ministers adopt seed harmonization regulations; Global program updates; Awards and recognitions; GFSC receives PIIR pursuit funding; Center launches Leroy & Barbara Everson Symposium series; Celebration honors Leroy Everson; Sindhu joins STB program; Unique facility serves as valuable teaching/training resource; Research Highlight: Effects of temp/humidity on treated soybean; Commentary: Testing for RIB corn; Vigue named Misra Scholar; Grace Kaudzu: African women in agriculture; Seed Science Center Profiles


Staging Soybean Development, David Wright, Andrew W. Lenssen Jan 2013

Staging Soybean Development, David Wright, Andrew W. Lenssen

Agriculture and Environment Extension Publications

Accurate growth stage determination of soybean is essential to accurately apply pesticides and determine potential yield loss from environmental stress. This handy publication uses high quality images to enable the user to accurately stage soybean development.


The Three Founders Of Botany: Rare Works From Special Collections, Rebecca E. Dickman Jan 2013

The Three Founders Of Botany: Rare Works From Special Collections, Rebecca E. Dickman

Special Collections Exhibit Catalogs

The Special Collections Department has many wonderful herbals in its rare book collection. In 2012, the department received Hieronymus Bock’s New Kreuter Buch. This completed former Department Head Tanya Zanish-Belcher’s dream of having an herbal written by each of the three founders of botany. The department decided to highlight these three herbals through an exhibit. The exhibit was on display from May 3 through October 15, 2013.


Soybean Aphid-Resistant Soybean Varieties For Iowa, Michael T. Mccarville, Erin W. Hodgson, Matthew E. O'Neal Nov 2012

Soybean Aphid-Resistant Soybean Varieties For Iowa, Michael T. Mccarville, Erin W. Hodgson, Matthew E. O'Neal

Agriculture and Environment Extension Publications

The soybean aphid is an economically damaging pest that has caused yield loss in parts of Iowa in seven of the past twelve years. This publication looks at how to choose, when to use, and the effects of aphid-resistant varieties.


Current Challenges In Managing Corn Rootworm, Erin W. Hodgson, Aaron J. Gassmann Nov 2012

Current Challenges In Managing Corn Rootworm, Erin W. Hodgson, Aaron J. Gassmann

Agriculture and Environment Extension Publications

Corn rootworm is a major pest of corn in the United States. In the last decade, Iowa farmers have seen many changes for managing corn rootworm. With the commercial release of transgenic Bt-rootworm corn in 2003, many farmers reduced or eliminated soil-applied insecticides to manage larvae. Western corn rootworm is adapting to transgenic technologies throughout the Corn Belt. Some continuous cornfields have larvae that can now survive at high numbers and cause severe root injury to Bt corn. We encourage farmers to use multiple strategies to protect corn.


Iowa Ipm Notes—Prevention, Detection, And Control Of Bed Bugs In The Home, Laura C. H. Jesse Oct 2012

Iowa Ipm Notes—Prevention, Detection, And Control Of Bed Bugs In The Home, Laura C. H. Jesse

Agriculture and Environment Extension Publications

Bug bugs are embarrassing and annoying. This fact sheet answers common questions related to preventing, detecting and controlling bed bugs in the home.


Farm Energy: Energy Consumption For Row Crop Production, H. Mark Hanna, John E. Sawyer, Dana Petersen Jun 2012

Farm Energy: Energy Consumption For Row Crop Production, H. Mark Hanna, John E. Sawyer, Dana Petersen

Agriculture and Environment Extension Publications

This publication provides an overview of farm energy use related to corn and soybean production in Iowa. Three areas of row crop production--field operations, fertilizer and pesticide application, and artificial drying--are used to illustrate on-farm energy consumption.


Farm Energy: Energy Considerations For Low-Temperature Grain Drying, Shawn C. Shouse, H. Mark Hanna, Dana Petersen May 2012

Farm Energy: Energy Considerations For Low-Temperature Grain Drying, Shawn C. Shouse, H. Mark Hanna, Dana Petersen

Agriculture and Environment Extension Publications

Harvested corn often requires artificial drying to lower moisture content for safe storage. Learn about energy considerations for drying corn with natural-air or low-temperature systems.


Iowa Seed & Biosafety News (Vol. 28, No. 1), Iowa State University Seed Science Center Jan 2012

Iowa Seed & Biosafety News (Vol. 28, No. 1), Iowa State University Seed Science Center

Iowa Seed & Biosafety News

Contents: Ninth Seed Science Center and BIGMAP Symposium focuses on technology; co-existence; Misra appointed to the NGRAC; Former IICA Deputy Director joins Seed Science Center; The global challenge before us: Hwo do we feed the hungry of the world?; BIGMAP faculty facilitate PBS workshops in Vietnam, Africa; Iowa State produces national variety lists for SPEAR project; Researchers build tool to aid Sub-Saharan African seed companies; New scholarship for undergrads with interest in seed industry; Center work cited in MAtz article; Research Brief: Stewart's Wilt; Munkvold researchers mycotoxins in Italy; Seed Science Center, USAID partner to publish seed policy brief ...


Flooded Soil Syndrome, John Sawyer, Antonio P. Mallarino, Mahdi Al-Kaisi Sep 2011

Flooded Soil Syndrome, John Sawyer, Antonio P. Mallarino, Mahdi Al-Kaisi

Extension and Outreach Publications

Fallow Syndrome is a condition where crops planted the year after an extended period with no plant growth exhibit reduced early growth and yield. On corn plants the syndrome exhibits classic phosphorus (P) deficiency symptoms, including slow-stunted early growth, purple coloration, and poorly developed roots. This effect is called Fallow Syndrome because it is observed in soils where, for moisture conservation, the land has been idled for a year and kept fallow with no crop or weed growth. This allows accumulation of moisture in the soil for the next cycle of crop production.


Sensing Nitrogen Stress In Corn, John E. Sawyer, John Lundvall, Jennifer S. Hawkins, Daniel W. Barker Apr 2011

Sensing Nitrogen Stress In Corn, John E. Sawyer, John Lundvall, Jennifer S. Hawkins, Daniel W. Barker

Agriculture and Environment Extension Publications

Determining the proper nitrogen (N) fertilization rate is important for the economic viability of corn production. A desire for high yields, fueled by low fertilizer N costs, led producers to apply rates that ensured adequate N rather than risk costly yield losses due to a shortage of N. Due to water quality concerns and recently high N fertilizer prices, management strategies are needed that can improve the efficiency and profitability of N use. With N application rates based on economic return instead of maximizing productivity, producers want to confirm that rate decisions are working adequately. Also, if unexpected N losses ...