Time to inspect alfalfa
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OSU Extension Forage Specialist Marc Sulc indicates that he has received reports from around the state about winter injury in alfalfa. Reports range from heaving to outright winter kill of plants without heaving. Considering the stressful conditions last year and through the winter and cutting management decisions that were made late last fall, the reports are not surprising.
The 2007 Easter freeze followed by very dry conditions left alfalfa stands in a weakened state going into the winter. Where a late fall harvest was made, no plant cover was left to insulate the crowns and the soil from alternative freezing-thaw cycles. Research in Wayne County demonstrated that early November harvests dramatically increased heaving in alfalfa stands compared with where a late harvest was not made. Furthermore, very wet soils throughout the winter probably contributed to lack of oxygen for alfalfa roots, and wet soils are also known to decrease cold tolerance of alfalfa.
A careful inspection of all alfalfa stands at this point in time is very important. Heaving in alfalfa stands has been reported from north to south in Ohio and in older as well as newly seeded fields. Severity ranges from mild to severe, both within fields and between fields. Heaving is usually more severe in areas with less than ideal internal and surface soil drainage.
Plants with crowns heaved up two or more inches are already dead, or are in the process of desiccating and will soon die. Plants that are heaved 1 to 1.5 inches above the soil surface or less may on casual inspection appear normal and healthy with decent spring growth. But closer inspection may reveal some moderate heaving, which will likely limit the productive life of the plant. Such plants will desiccate more quickly, be injured by wheel traffic, and crowns may break or be cut off at the first harvest. Some of those plants may survive through the first harvest, but their yield potential is compromised and they will likely disappear from the stand at some point during the growing season.
Plants can also be killed by cold temperatures. For a picture of freeze injury, refer to their fact sheet at http://www.uwex.edu/ces/crops/uwforage/StandEvaluationFOF.htm
To evaluate an alfalfa stand, estimate the number of live plants per square foot. The best way to do this is to dig up and count the plants in a 1 to 2-square foot area in several parts of the field. Second year stands (seeded last year) should have 10 to 12 plants per square foot, and third year or older stands should have 5 to 6 plants per square foot for optimal yield potential. When making plant counts, consider only those plants that appear healthy with vigorous shoot growth.
Carefully evaluate the condition of new buds and new shoots for evidence of injury. Healthy plants with no winter injury will show vigorous, symmetrical growth all the way around the crown. Injured legume plants will often show asymmetrical growth caused by injury to part of the crown.
Take a random sample of the plants that were dug up for making stand counts. Split the taproots lengthwise to look for internal discoloration of the taproot tissue. Healthy taproots will be firm and creamy white. Root and crown rot will appear as various darker shades.
Visually estimate the ground cover of desirable forage plants as the stand develops 4 to 6 inches of new growth. Stands with more than 80 percent ground cover and good vigor will produce excellent yields, stands with 60 to 80 percent ground cover should produce fair yields, stands with 40 to 60 percent ground cover will probably produce yields in the 60 percent range of normal, and stands of 20 to 40 percent ground cover will yield less than half their normal potential. Weeds will become a real problem in the thinner stands, and over seeding with grass or destroying the stand and rotating out to another crop should be considered.
Ag Class for Teachers A continuing education course offered this June in Coshocton County could be just the thing for people interested in contemporary agricultural issues such as alternative energy production, medicine and nutrition, biosecurity and animal welfare.
The course, "Medicine. Energy. Food." is being offered by the Coshocton County office of Ohio State University Extension. It is geared to school teachers, but anyone can enroll. The course will include ideas on integrating these issues into classroom discussions at all grade levels.
The course will meet 9 a.m. to 11 a.m. Tuesdays and Thursdays, from June 10 through 24, at the Coshocton Campus, a collaborative center that offers programs from The Ohio State University, Newark campus; Central Ohio Technical College; Hocking College; and Muskingum College. The course features several Ohio State faculty members who will discuss their research, and participants who successfully complete the course will earn one hour of continuing education credit from Muskingum College.
The course fee is $150. Anyone interested in more information or in enrolling may contact Marissa Mullett, OSU Extension educator in Coshocton County, at mullett.50@osu.edu
Calendar of Activities Opening day of Zanesville Farmers Market, 9 a.m.to noon, May 3, at the Fairgrounds.
Ag Breakfast, 8 a.m., May 6, at Friendly Hills Grange Camp.
Mark Mechling is an extension agent with The Ohio State University Extension Office and can be reached at 454-0144 or mechling.1@osu.edu
Author: 100073 Beijing, the Beijing Electric Power General Hospital general surgery
Surgery is the treatment of nutrition science nearly 30 years one of the most important progress. At present, nutritional support for critically ill patients has become an important treatment measures, it is not only a recovery period of adjuvant therapy, is more modern in the clinical treatment of an important and indispensable component of the 1 . For example: before and after surgery can reduce the nutritional support of the complications and mortality; anti-tumor treatment at the same time giving positive support to improve the nutrition of patients on chemotherapy or radiotherapy of tolerance and treatment effect of severe acute pancreatitis, and other critically ill patients effectively Nutritional support can be dangerous to spend a long period and to increase the cure rate 2 . Surgical nutrition on modern medicine has made tremendous contributions to it that long and tortuous history of the unforgettable, will now support the nutritional profile of historical analysis are as follows.
1 Research
1.1 Overview surgery abroad on nutrition in the past 30 years developed rapidly, although the time is very short, but in fact the history of nutritional support has a long history. As early as in ancient Egypt (1500 BC), people have three days to a month enema maintain a healthy nutritional habits; 1598 Capivacceus ATC will be inserted in the esophagus, for feeding the patients can not provide nutrition 3 ; 1790 Hunter nasal gastric feeding means swallowing muscle paralysis in the success of 4 ; 1880 Bliss 5 statistics literature and found more than 400 cases have been passed in patients with colorectal nutritional support to the report, used by the nutrient solution for the majority of eggs Soup, beef soup, milk and cognac; 1882 Brown-Sequard 6 with pancreatic decomposition steak after rectal infusion nutrition; 1886 Machenize of the rectum nutrition infusion apparatus and methods for improving and achieved good Effects, 1913 Myers pointed out that food was only broken down into basic component units can be absorbed and found that the colon can absorb a certain amount of free amino acids, glucose and salts, etc. 7 ; 1939, the famous scientist Jonathan Rhoads 8 observed The dog s intestinal loop isolation on the absorption of amino acids that the application of carbohydrates in the vein of the intestinal infusion of protein amino acid to meet the needs of the body is feasible. The first time in the same year Robert Elmen casein hydrolysate enter vein success; followed in 1940 by Shohl, such as the first crystallization of amino acids enter vein; 1945 Zimmerman described the application of central venous infusion of nutrients approach 9 ; Aubaniac first in 1952 , Reported a 10-year lock in the application
Bone vein intubation infusion method, indicating that the people in parenteral nutrition (PN) input channels in a decisive step taken 10 . Then Greenstein 11 in 1957, successfully developed for astronauts to use the elements in the diet, for their ingredients can be absorbed without digestion of the material monomer. Catering to promote elements of the invention of the rapid development of the enteral nutrition.
1959 Francis Moore made the surgical treatment of patients with metabolic the best heat and nitrogen ratio of 150 kCal: 1g; 1961
Related: Time to inspect alfalfa
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From zanesvilletimesrecorder.com:
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Practical Activities to Understanding Contemporary Nutrition is a text that can be used in conjunction with another textbook on Nutrition, or may also be.
Contemporary Nutrition Support Practice from American Journal of Pharmaceutical Education in Health provided free by Find Articles.
These people are simply known as vegetarian and they consume a contemporary nutrition intake indeed. They basically choose to forgo foods from animal.
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