81. OMAFRA - MAAARO While there are precious few management requirements remaining after the corncrop has reached waste high, walking the fields may lead to some improvements http://www.gov.on.ca/OMAFRA/english/crops/field/news/croptalk/2004/ct_0604a7.htm

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82. OMAFRA - MAAARO Planting corn after a hay harvest can be good for silage. This lateplanted corncrop is traditionally aimed at silage production. http://www.gov.on.ca/OMAFRA/english/crops/field/forages/corn_earlyhay.htm

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83. Market Clippings: US Crops - Where Are They Grown? The largest US crop in terms of total production is corn. The Midwest states,where most of the corn is grown, are known as the corn belt although corn is http://www1.agric.gov.ab.ca/$department/deptdocs.nsf/all/sis5219?opendocument

84. Vermont Crops And Soils : University Of Vermont How much nitrogen fertilizer does a corn crop need? corn is a big user ofnitrogen. A corn silage crop takes up 150 or more pounds of N per acre http://pss.uvm.edu/vtcrops/?Page=articles/PSNTTest.html

85. Agronomy Journal -- Sign In Page Rotation benefits of cover crops to the subsequent corn crop appear to be slightly Nitrogen credits in soybean–corn crop sequences on three soils. http://agron.scijournals.org/cgi/content/full/97/4/1239

HOME HELP FEEDBACK SUBSCRIPTIONS ... SEARCH QUICK SEARCH: [advanced] Author: Keyword(s): Year: Vol: Page: This item requires a subscription to Agronomy Journal Online. Full Text Cover Crop Effects on Corn Yield Response to Nitrogen on an Irrigated Sandy Soil Andraski and Bundy Agron J. This Article Abstract Figures Only Full Text (PDF) ... Alert me if a correction is posted Services Similar articles in this journal Similar articles in ISI Web of Science Alert me to new issues of the journal Download to citation manager PubMed Articles by Andraski, T. W. Articles by Bundy, L. G. Agricola Articles by Andraski, T. W. Articles by Bundy, L. G. Related Collections Cover Crops Nutrient Management Nitrogen To view this item, select one of the options below: Sign In User Name Sign in without cookies. Can't get past this page? Help with Cookies. Need to Activate? Password Forgot your user name or password? Purchase Short-Term Access Pay per Article - You may access this article (from the computer you are currently using) for 2 days for US$10.00

86. Interseeding Cover Crops Into Soybean And Subsequent Corn Yields -- Hively And C Interseeded rye, however, reduced the yield of the subsequent corn crop. corn following Dutch white clover and medium red clover cover crops had greater http://agron.scijournals.org/cgi/content/full/93/2/308

HOME HELP FEEDBACK SUBSCRIPTIONS ... TABLE OF CONTENTS QUICK SEARCH: [advanced] Author: Keyword(s): Year: Vol: Page: This Article Abstract Full Text (PDF) Alert me when this article is cited ... Alert me if a correction is posted Services Similar articles in this journal Similar articles in ISI Web of Science Alert me to new issues of the journal Download to citation manager ... Cited by other online articles Search for citing articles in: ISI Web of Science (1) PubMed Articles by Hively, W.D. Articles by Cox, W. J. Agricola Articles by Hively, W.D. Articles by Cox, W. J. Related Collections Other Crop Management Intercropping Systems Other Cropping Systems Maize ... Interseeding Agronomy Journal American Society of Agronomy SOIL AND CROP MANAGEMENT Interseeding Cover Crops into Soybean and Subsequent Corn Yields W.Dean Hively a and William J. Cox b a Dep. of Nat. Resources, Cornell Univ., Ithaca, NY 14853 b Dep. of Crop and Soil Sci., Cornell Univ., Ithaca, NY 14853 Corresponding author ( ABSTRACT TOP ABSTRACT INTRODUCTION MATERIALS AND METHODS RESULTS AND DISCUSSION CONCLUSION REFERENCES Organic producers in the northeastern USA have difficulty establishing cover crops after soybean [ Glycine Max (L.) Merr.] harvest.

87. Climate Indices For The Economy: Crop Moisture Stress Index The Moisture Stress Index for corn and soybean crops is a measure of the effects monthly and seasonal correlations of each corn crop stress index with http://lwf.ncdc.noaa.gov/oa/climate/research/cie/cmsi.html

NCDC Climate Monitoring Climate Indices / CMSI / Search Help Crop Moisture Stress Index View Data Index Overview Crop Moisture Stress Index Imagery Corn Moisture Stress Index Soybean Moisture Stress Index Index Overview The Moisture Stress Index for corn and soybean crops is a measure of the effects of drought and catastrophic wetness on national crop yield and is calculated through the use of a drought index (the Palmer Z Index) and annual average crop productivity values within each U.S. climate division. Moisture stress, either a lack or an abundance of soil moisture during critical phases of the crop growth and development cycle, affects US average crop yield, particularly when moisture stress occurs in the most highly productive crop growing areas. Soil moisture conditions in July and August were found to be the best indicators of average crop yield for corn and soybeans, and as such, are used in creating the Moisture Stress Index. Calculations of the Moisture Stress Index are based on (1) the extent of severe to catastrophic drought or catastrophic wetness within the crop growing regions, i.e., those climate divisions with a Z Index value less than or equal to -2 or Z Index greater than or equal to +5, and (2) the average annual crop productivity* of each climate division within the crop growing region. Figure 1 is an example of short-term soil moisture conditions as measured by the monthly Palmer Z Index, while figures 2 and 3 show the 10-year average crop productivity values within the crop and soybean growing regions respectively.

88. Symptoms And Controls Of Crop Diseases Survives on corn crop residue. Spreads by windborne spores and ear-feeding insects . Crop rotation do not rotate with barley, corn or wheat. http://www.ext.nodak.edu/extpubs/plantsci/crops/pp533w-2.htm

North Dakota State University NDSU Extension Service Symptoms and Controls of Crop Diseases (cont.) Barley Oat Rye Corn Barley Stem and Leaf Diseases – Fungal STEM RUST, Puccinia graminis tritici and Puccinia graminis secalis Symptoms. See description under wheat. Survival and Spread. See description under wheat. Other Crops Affected. Rye, wheat. Control. All currently (1996) available barley varieties are susceptible to race QCC of stem rust. This race was first discovered in North Dakota in 1989. Prior to discovery of this new race, all commonly grown barley varieties were resistant to the prevalent races of stem rust. LEAF RUST, Puccinia hordei Symptoms. Small circular orange-brown pustules occur on leaves. Seed test weight and yield may be reduced. Survival and Spread. Orange spores blow in from the south and spread from plant to plant. Usually, only late planted barley is seriously damaged. Control. All currently (1996) available varieties are susceptible. Chemical control. Mancozeb and propiconazole fungicides are registered for barley for leaf rust control. NET BLOTCH

89. Planet Ark : Pioneer Biotech Corn Taints Hawaii Crops - EPA Planet Ark gives you up to 40 World Environment News stories every day fromthe Reuters news agency. Nearly 10000 environmental news stories are fully http://www.planetark.org/dailynewsstory.cfm/newsid/20565/story.htm

Subscribe to daily environment news Cartridges 4 Planet Ark Planet Ark Home Our UK Home Page Select a topic from this pull-down menu Read the latest Reuters World Environment News Look at the latest Reuters Environment News Pictures Receive free daily news headlines via email Search the Planet Ark News Archive Find out about National Tree Day Visit the Planet Ark Media Centre Who are Planet Ark? Find out about Planet Ark's campaigns Find out about the local recycling services available in your area Pioneer biotech corn taints Hawaii crops - EPA Mail this story to a friend Printer friendly version USA: April 25, 2003 WASHINGTON - The U.S. Environmental Protection Agency said this week it fined Pioneer Hi-Bred International $72,000 after the agency found evidence its experimental biotech corn had contaminated nearby crops in Hawaii. The EPA said Pioneer, a unit of DuPont Co (DD.N), immediately destroyed the tainted corn crops when officials discovered the problem last month. "Pioneer destroyed the plants that tested positive before they pollinated, and the EPA is confident that corn intended for human consumption was not affected," the agency said in a statement. In December, Pioneer agreed to pay the EPA about $10,000 to settle federal allegations they mishandled experimental biotech corn crops in Hawaii.

90. S/R 35: Genetically Engineered Plant Crops: Potential For Disaster (David Kennel Solutions Return to the practice of crop rotation. In 1945 corn was grown inrotation with soybeans, wheat and other crops. corn on corn (increased with GM http://www.greens.org/s-r/35/35-04.html

s/r home issues authors 35 contents Synthesis/Regeneration 35 (Fall 2004) Genetically Engineered Plant Crops: Potential for Disaster by Dr. David Kennell Transgenic crops will greatly accelerate the decline of biodiversity in the plant world. Reason: Seed corporations demand farmers buy seed from them each year—replacing the millennial practice of farmers selecting seeds best suited for their specific environments. By coercing governments of developing countries to plant genetically modified (GM) crops, much of the native crops are replaced by a monoculture of the GM crop for export to meet the country’s debt. The country then has to import food to replace their native crops. Once GM plants are introduced, farmers may be unable to grow non-GM crops. The Percy Schmeiser case in Saskatchewan, Canada has dramatized what is occurring on farms all over the world. The unintended spread of glyphosate-resistant pollen from Round-up Ready (RR) canola plants (possibly by wind, birds, trucks, etc.) contaminated Schmeiser’s non-GM canola fields. Even though the court agreed that he never planted or wanted Monsanto’s GM seeds, it ruled that he had to pay a huge patent fee to Monsanto. This experience was not unique. The University of Manitoba found that 32 of the 33 commercially available seed lots of native canola have been contaminated with RR seeds. The canola of the Great Plains is rapidly becoming a monoculture variety, which carries the potential for disaster. The RR plants have even invaded other crop species—becoming a “super-weed.”

91. Project Focuses On Times And Rates To Irrigate Corn, Soybean Crops A study being conducted by UK Cooperative Extension agents in fields in Daviessand Henderson counties is trying to help grain farmers determine when to http://www.ca.uky.edu/agc/news/2000/Jun/irrigate.htm

Project Focuses on Times And Rates To Irrigate Corn, Soybean Crops Henderson County farmer Glenn Miller, right, and Mike Smith, Henderson County Extension Agent for Agriculture and Natural Resources, check field monitoring equipment in Miller's corn field. The equipment is used to monitor soil moisture and other data to determine when Miller needs to irrigate the crop. "We want to find what's easier for the farmer." Mike Smith, Henderson County Cooperative Extension Agent By Laura Skillman OWENSBORO, KY. (June 28, 2000) A study being conducted in fields in Daviess and Henderson counties is trying to help grain farmers determine when to start, how much to apply, and when to stop using their center pivot irrigation. "Basically, we started this project as a reaction to last year's drought," said Wayne Mattingly, Daviess County Extension Agent for Agriculture and Natural Resources. "What we saw were a lot of farmers using center pivots, but they were very haphazard about how they used it." When farmers were asked why they irrigated and how much they applied, few had any real answers.

92. Drought Harms Corn Crop In Illinois PUTNAM, Ill. A thin cornstalk comes out of the dry, dusty ground with just aslight tug, its bugeaten roots barely an inch long. http://www.washingtonpost.com/wp-dyn/content/article/2005/07/28/AR2005072801039.

93. Summary Drought Devastates Ill. Corn Crop NO RAIN Illinois received about 8.5 inches of rain between March and June,about half the normal amount. http://www.washingtonpost.com/wp-dyn/content/article/2005/07/28/AR2005072801055_

94. USATODAY.com - Illinois Corn Crop Withering As Drought Worsens Illinois is going through its worst dry spell in nearly 20 years. And becausethe state accounted for nearly onefifth of the nation s corn crop last year, http://www.usatoday.com/weather/climate/2005-07-29-Illinois-drought_x.htm?POE=WE

95. STLtoday - News - Science Medicine The corn crop in many parts of Missouri and Illinois is in danger of severe In Missouri, the corn crop is being hit hard because the plants are in the http://www.stltoday.com/stltoday/news/stories.nsf/sciencemedicine/story/184F80A6

96. CORN Newsletter: 2005-21, July 11, 2005 - July 19, 2005 B) Understanding corn Crop Water Needs Available Soil Moisture Average wateruse by a corn crop during pollination and early grain fill is about 1/3 http://corn.osu.edu/index.php?setissueID=92

97. CattleNetwork.com Schwieterman corn Crop No Longer Shrinking; Feeder Cattle In Their Own World Crop conditions will likely decline for both the corn and soybeans. http://www.cattlenetwork.com/content.asp?contentid=7260

98. Wisconsin Corn Agronomy Albrecht, KA, and Bures, EJ 1997. Earfill effects on yield and quality ofsilage corn. Crop Science 37243-247. Utilizing Drought-Damaged corn (NCH-58) http://corn.agronomy.wisc.edu/

Wisconsin Corn Agronomy Home Publications Research Extension Agents ... Site Map Mission: To develop relevant corn research and education programs that address the needs of Wisconsin corn farmers. Wisconsin Corn Agronomy Feature The Relationship Between Corn Grain and Forage Yield: An Update Tuesday, September 20, 2005 Printer friendly version Understanding the relationship between corn grain and forage yield is important to dairymen and grain farmers who often contract with each other for corn silage production. Recently, the grain versus forage relationship has been used to set government Loan Deficiency (LDP) Payments to farmers for corn silage acres. Arriving at a fair and equitable price for corn silage is difficult due to the number of factors involved that are dynamic and biologically variable. Factors include grain yield, forage yield, production costs, grain price, harvesting costs, grain drying costs, fertility value of stover, and forage quality (especially starch content and neutral detergent fiber digestibility-NDFD). Some growers will want to calculate the forage price based on corn grain yield (as the alternative harvestable crop) and some dairymen will want to calculate the price based on alternative forages (primarily alfalfa as the alternative forage source). In either case, the final price is affected by supply and demand of corn grain within a region.

99. Las Vegas SUN: Drought Harms Corn Crop In Illinois While 56 percent of Illinois corn crop is rated in very poor or poor A smaller crop will probably mean lower income, even if corn prices rise. http://www.lasvegassun.com/sunbin/stories/nat-gen/2005/jul/28/072803777.html

Printable text version Mail this to a friend July 28, 2005 Drought Harms Corn Crop in Illinois By JIM PAUL ASSOCIATED PRESS PUTNAM, Ill. (AP) - A thin cornstalk comes out of the dry, dusty ground with just a slight tug, its bug-eaten roots barely an inch long. Husks peel back to reveal scraggly-looking ears not much longer than a thumb. Jonathan Downey's crop is suffering, the victim of a drought that is stunting crops across the Farm Belt but is especially severe in Illinois. Illinois is going through its worst dry spell in nearly 20 years. And because the state accounted for nearly one-fifth of the nation's corn crop last year, the market is watching closely. Downey's 900-acre farm about 100 miles southwest of Chicago lies at ground zero. The leaves on his corn plants are withering and some stalks that should be 10 feet tall by now are barely waist high. He expects to average only 60 bushels an acre on his 600 acres of corn - about one-third of last year's bounty. His land had received less than 2 inches of rain between corn planting in April and the arrival of a cold front that brought 1.3 inches on Tuesday. "As June progressed, I knew the crop was hurt," the 45-year-old farmer said. "I knew it could be saved by moisture, but it was just going to take so much moisture to save the corn crop and I didn't think it that was realistic."

100. The New Bern Sun Journal This year s corn crop was his worst in about five years. It s just like gambling Weeks without rain including June s dryness also hurt their corn crop. http://www.newbernsj.com/SiteProcessor.cfm?Template=/GlobalTemplates/Details.cfm

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