Strengthening the cultivation and management of orchards or vegetable gardens, rational fertilization and irrigation, not only can increase production, but also improve product quality, while also providing a guarantee for long-term storage. Generally, the higher the quality of the fruit and vegetable products, the better the storability and disease resistance, and the lower the quality of the raw materials, the storage time is greatly reduced. In the cultivation of fruits and vegetables, the main measures affecting the survival of fruits and vegetables are fertilization and irrigation techniques.
First, fertilization has a great influence on the quality and storability of fruits and vegetables. Generally used for long-term storage of fruits and vegetables, in the production process, the amount of nitrogen fertilizer should be controlled as much as possible. Especially in the middle and late stages, phosphorus, potassium, calcium fertilizer and micro-fertilizers such as boron, manganese, zinc and iron should be appropriately added. In the growing season, foliar spray technology should be used to increase the content of calcium, boron, manganese, phosphorus and potassium in fruits and vegetables. Reduce the ratio of nitrogen to calcium, balance the relationship between various elements and nitrogen, thereby improving the storage and disease resistance of fruits and vegetables (mainly anti-physiological diseases). Excessive application of nitrogen fertilizer tends to reduce the resistance of fruits and vegetables, shorten their storage time, and increase the loss of decay in severe cases. Therefore, the application of organic fertilizer and compound fertilizer containing humic acid should be emphasized in the production of fruits and vegetables.
Secondly, reasonable irrigation is an effective measure to ensure the normal growth of fruits and vegetables. It is generally required that fruits and vegetables stop watering 7-10 days before harvest. Otherwise, the storage performance of fruits and vegetables will be greatly reduced, and the loss of decay and water loss during storage will be increased.
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Saliva Antigen Test
The COVID-19 Antigen Saliva Test kit is a lateral flow immunoassay intended for the preliminary screening and qualitative detection of nucleocapsid protein antigen from severe acuterespiratorysyndrome coronavirus SARS-CoV-2which causesthe Coronavirusdisease(COVID-19),in direct saliva sample from individuals suspected of coVD-19 by their healthcare provider within the first seven days of symptom onset.The COVID-19 Antigen Saliva Test kit is for professional use only and is intended to be used as an aid in the diagnosis of SARS CoV-2 infection.
SARS-CoV-2is anenvelopedsingle-stranded RNAvirus ofthe Baenus COVD-19 is an acute respiratory infectious disease. People are generally susceptible.Currently. the patients infected bytheSARS-CoV2are the main source ofinfection:asvmptomatic infected peope car also be an infectious source Based on thecurrentepidemiologica investigation, the incubation period is 1to 14 daysmostly 3to 7 days The main manifestations include feverfatigue and drycough.Nasa congestion, runny nosesore throatmyalgia and diarhea are found in a few cases.
Results are for the identification of SARS-CoV-2 nuceocapsid protein antigen. The SARS-CoV-2 antigen is generally detectable in upper respiratory specimens during the acute phase ofinfectionPositive results indicate the presence of SARS-CoV-2viralantigenshowever cinicai corelation with patient history and other diaanostic information is key to determine status of infection.Positive results don't preclude bacterialinfection or co-infection with other yiruses.eaatveresuts To patients with symptom onset for more than seven days should be treated as presumptive and confirmation with a molecular assayand patient management may be performed according to local regulations as needed.
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