When the author looked at the flower production area last year, he saw that the growth of peanut farms was very different, some were prosperous, some were premature, and autumn production was also very poor. After analysis, the main reason is related to fertilization.

Some farmers believe that peanuts are leguminous crops. Rhizobia can produce nitrogen fertilizer, but it is not a fertilizer. This is a misunderstanding. It is important to know that peanuts are maintained by the nutrients in the seed after sowing and before nodule formation, and secondly by absorbing nutrients from the soil. Loss of fertilizer at this time is not only difficult seedlings, but also inhibited later growth. Production practice shows that fertilizer accounts for about 30% of the increase in peanut production. The growth experience of growers is “thinly able to seal lines, and fertilizers and trees will not fall”. Studies have found that the ratio of peanuts to nitrogen, phosphorus, potassium and calcium fertilizers is 1:0.5:1 to 1.5:0.5.

Peanut lacks nitrogen, grows slowly, leaves yellow leaves, small leaves, and few pods; it is underdeveloped when phosphorus is deficient, root nodule is less, nitrogen fixation ability is decreased, and lustrous ripening is late; when the potassium is lacking, leaves are blue-green, when severe Withered at the top of the plant; When chlorophyll is absent, chlorophyll does not form normally; in severe cases, leaf color is albino; ​​leaf veins are chlorogenic; in the absence of sulfur, nut protein content is reduced; when molybdenum is deficient, root nodule and branch number are reduced, and chlorophyll is aged; The main stem and lateral branches are short, the plants are short and clustered, and the growing point is dead. Therefore, peanut production must be balanced by fertilization due to soil and seedlings.

First of all, it is necessary to fertilize soil. Practice has shown that the lower the fertility of the soil, increase fertilization material yield the largest. The second is medium fertility, and the effect of fertile soil production is not obvious. Therefore, the soil with poor fertility must be given priority.

Second, it is necessary to apply seed dressing. 0.2 kg of peanut rhizobia per acre, add 2.5-10 grams of ammonium molybdate; 0.4-1 g of boron fertilizer per kilogram of seeds; peanuts first wetted with rice broth, and then the seeds used per acre Plaster 1-1.5 kg. These seed dressing methods can be supplemented with fertilizers in a timely manner, and they can be selected and applied in conjunction with actual applications.

Third, it is necessary to fertilize the seedlings. Peanuts require less fertilizer at seedling stage, and they require about 25% of the total amount of fertilizers during the flowering period, and 50%-60% of the total amount of fertilizer needed during the period of pods. One is Pusch base fertilizer, about 2,000 kilograms of composted soil-fertilizer per acre, 15-20 kilograms of phosphate fertilizer, and 15-20 days of mixing and mixing with soil fertilizer to form ammonium phosphate or ammonium sulfate. To the role of phosphorus nitrogen. The soil with poor fertility was supplemented with 5 kg of urea. The second is before the beginning of flowering, 300 kg of organic fertilizer per mu, 5 kg of urea, and 10 kg of superphosphate were applied in combination with medium tillage soil. The third is the use of Huimanfeng or Zhuang Fuxing active liquid fertilizer 150 ml per mu at the beginning of flowering, spraying 2-3 times for 50 kg of fresh water, and it has significant effect on promoting the number of pods and improving the fruit filling rate. The fourth is the period of scarring, spraying 0.2%-0.3% of potassium dihydrogen phosphate and 1% urea solution, can receive good effect of phosphorus and nitrogen.

Virus Specimen Collection Tube

Inspection principle:
It can perform protein denaturation on fresh clinical virus samples to inactivate the virus, prevent secondary transmission of infection, and ensure the safety of transportation and testing personnel.
♣.Structural composition: Combination of cotton swab and transport medium (VTM).
♣. Product requirements:
The product should be airtight, avoid high temperature, avoid direct sunlight storage. It should be used in a clean, hygienic, pollution-free, and temperature-friendly environment.
♣, Storage conditions and validity period:
â‘ , the product should be stored in a clean, dry and ventilated environment,
②, the temperature is 5℃-35℃;
â‘¢, relative humidity <85%RH;
â‘£, product shelf life: 12 months.
♣. How to use
â‘  Before sampling, mark relevant information on the label of the sampling tube.
â‘¡. Sampling with the corresponding cotton swabs.
â‘¢ After the collection is completed, quickly put the cotton swab into the collection tube, break the part higher than the sampling tube, and tighten the tube cover.
â‘£. For the specific sampling method, please refer to the following:
a) Nasal swab Gently insert the sampling head into the nasal cavity, stop for a while and then slowly rotate to exit, immerse the collected specimen in the Xiangxiang solution, break the excess part and discard it, and tighten the sampling tube cover.
b) Pharyngeal swab: Wipe bilateral pharyngeal tonsils and posterior pharyngeal wall with the sampling head, immerse the collected specimen in the sampling solution, break off the excess part and discard it, and tighten the cap of the sampling tube.
c), Mycoplasma Chlamydia, Ureaplasma specimen collection
Male: Insert the sampling head into the urethra about 2cm and rotate, stay for a while and then exit, and immerse the collected specimen in the sampling solution.
Female: Wipe the mucus of the cervical orifice, insert the sampling tip into the cervical canal for 1-2 cm for sampling, immerse the collected specimen in the sampling solution, break off the excess part and discard it, and tighten the cap of the sampling tube.
♣. Precautions
1. After the virus is collected, the disposable sampling swab should be completely inserted into the preservation solution, so that the virus can be retained to the greatest extent possible.
â‘¡ The collected specimens must be sent for inspection in time.
â‘¢. It is forbidden to use products with damaged packaging and expired validity period to prevent pollution.
This single-use Virus Sampling Tube is used for in vitro diagnosis. It cannot be used for human or animal oral or external use. If swallowed, it may cause serious events; it is irritating to eyes and skin. If it is not splashed into the eyes, rinse with water.

Virus Sampling Tube,Virus Specimen Collection Tube,Viral Transport Tube,Saliva Virus Sampling Kit

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