The nursery weeds such as goosegrass, green foxtail, and sedge have not only affected the appearance of the nursery, but also caused a great deal of diseases and insect pests. They also competed with the seedlings for water and nutrients and postponed the time for seedlings to go out. As a result, the seedling rate decreased, and the production cost increased. Manual weeding is a labor-intensive and inefficient operation. If weeding with chemical herbicides, we can get a multiplier effect.
First, spraying time. The first spraying took place in late June. Because the summer is approaching, the temperature is high, the humidity is high, and the respiration intensity of the weeds is large, which is beneficial to the absorption of chemical herbicides and the efficacy is relatively fast. When spraying, choose weather conditions where the sky is clear, the sun is sunny, there is no gale, and the temperature is high. After the first spraying, the efficacy began to decline around 40 days, and then sprayed several times, the field weeds can be cleared.
Second, the application concentration. 10% of the glyphosate water agent is controlled at 1% to 2%, 20% of the Gram-Ingredients are in the range of 0.5% to 1%, and 5% of the Emulsion is in the range of 0.1% to 0.3%. About 50 kilograms per acre spray liquid.
Third, the cost of chemical weeding and labor saving is low. A workforce weeds 0.5-0.7 mu per day, weeding is not complete, there are residual grass roots in the soil, and germination will resume soon. A labor force sprays about 10 mu of medicine every day. All the weeds that are sprayed with liquid medicine die and leave no grass roots. In terms of cost, manual weeding requires 50 to 80 yuan per mu, while chemical weeding costs less than 10 yuan per mu.
For the treatment of diseases of the Digestive System:
Many symptoms can signal problems with the GI tract, including: abdominal pain, blood in the stool, bloating, constipation, diarrhea, heartburn, incontinence, nausea and vomiting and difficulty swallowing, according to the NIH.
Among the most widely known diseases of the digestive system is colon cancer. According to the Centers for Disease Control (CDC), 51,783 Americans died from colon cancer in 2011 (the most recent year for available data). Excluding skin cancers, colon and rectal cancer, or colorectal cancer, is the third most common cancer diagnosed in both men and women in the United States, according to the American Cancer Society.
Polyp growth and irregular cells, which may or may not be cancerous, are the most common development paths for colorectal cancers (also referred to as CRC), and can be detected during a routine colonoscopy, according to Dr. John Marks, a gastroenterologist affiliated with the Main Line Health health care system.
[The best news is that, if caught early enough, they can also be removed during the colonoscopy - eliminating the possibility that they grow further and become cancer," Marks said.
For those patients whose cancer has already spread, there are various minimally invasive surgical options that have extremely good prognoses. It is recommended that asymptomatic patients without a family history begin getting tested regularly between the ages 45 and 50, according to Marks. [Symptoms which may suggest that you need a colonoscopy at an earlier age include rectal bleeding and stool/bowel habit changes which last for more than a few days."
While CRC gets a great deal of attention, many diseases and conditions of the digestive system - including irritable bowel syndrome, diverticulitis, GERD (acid reflux) and Crohn`s disease - can be chronic and are difficult to diagnose and treat, according to Dr. Larry Good, a gastroenterologist affiliated with South Nassau Communities Hospital. [With many of these diseases, blood work and colonoscopies all looks normal, so there is an absence of red flags."
Many of the diseases of the digestive system are tied to the foods we eat, and a number of sufferers can reduce their symptoms by restricting their diets, Good said. [Of course no one wants to hear that they can`t eat certain foods, but many times, eliminating acidic things from the diet, such as tomatoes, onions, and red wine, can have an impact," Good said.
There are a number of tests to detect digestive tract ailments. A colonoscopy is the examination of the inside of the colon using a long, flexible, fiber-optic viewing instrument called a colonoscope, according the American Gastroenterological Association. Other testing procedures include upper GI endoscopy, capsule endoscopy, endoscopic retrograde cholangiopancreatography and endoscopic ultrasound.
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