Jujube tree spring fertilizer management do this

At present, it is the period when the jujube tree begins to grow and develop. The management of the jujube tree's spring fertilizer and water will be effectively carried out, laying a firm foundation for increasing the output of the jujube this year. The majority of jujube farmers should do the following:

Strengthen fertilizer and water management during germination

In the spring, jujube trees undergo many important “phenophases” such as sprouting, flowering, larking, and stabilizing fruit. The nutrient consumption is the most period of the year, and the fertilizer and water supply during this period should be fully guaranteed.

Top dressing fertilizer applied. Fertilizer is dominated by nitrogen fertilizer, and appropriate amount of phosphorus and potash fertilizer are used. This fertilizer accounted for 30% of the annual fertilization amount. A jujube tree generally applies 250 grams of urea, 750 grams of superphosphate, plus a person's animal waste water. More or less fruit should be increased or decreased as appropriate. The unsuccessful young plants applied 100 grams of urea, and appropriate amounts of fertilizer were used in the farmyard. Fertilization methods: digging grooves and other methods under the crown. Diligence root fertilizer. In the flowering leaf stage, the crown was sprayed with 0.2% boron for 1 time. In the stable fruiting stage, the shoots were sprayed with 0.3% potassium dihydrogen phosphate plus 0.4% urea for 3 to 4 times, each time for 5 to 7 days. Insufficient nutrition.

Reasonable water spray jujube tree During the flowering period, when the temperature is dry, spray water early and late to ensure the flowering, pollination, and fruit setting rate of jujube trees.

Do a good job of soil management

Doing a good job in the spring soil management of jujube trees can effectively increase the absorption of fertilizer and water in the roots and enhance the drought resistance of jujube trees. One is to fully implement cultivating loose soil (ie, the root repair method based on years of practical experience) without cultivating ripper or digging the ground in winter, so as to improve fruit setting; second, to open a trench or “back to front” or to make Tree tray to thicken the root of the fertilizer layer; the third is the straw to cover the tree disk. Straw mulching not only moisturizes, warms, inhibits grass, but also fertilizes. Cover can be used straw, straw, husk and decomposed corn stalks, weeds and so on.

Extraction Kit Magnetics Bead Method

This standard specifies the terms and definitions, classification, technical requirements, test methods, identification, labels and instructions for use, packaging, transportation and storage of nucleic acid extraction kits (magnetic beads method) (hereinafter referred to as "kits"). This standard It is suitable for extracting and purifying human genomic nucleic acid and its fragments from various clinical samples such as serum, plasma, whole blood, cerebrospinal fluid, milk, saliva, urine, sputum, swab, tissue or paraffin-embedded tissue by magnetic bead method , Pathogen nucleic acid kit. Pathogen nucleic acid includes deoxyribonucleic acid (DNA), ribonucleic acid (RNA), etc. This standard does not apply to nucleic acid extraction reagents contained in closed systems that cannot extract nucleic acid extraction products for detection.

This kit uses magnetic beads with unique separation function and a unique buffer system to separate and purify high-quality virus from serum, plasma, lymph, cell-free body fluid, cell culture supernatant, urine or various virus preservation solutions DNA/RNA. The uniquely embedded magnetic beads have a strong affinity for nucleic acids under certain conditions, and when the conditions change, the magnetic beads release the adsorbed nucleic acids, which can achieve the purpose of rapid separation and purification of nucleic acids. The whole process is safe and convenient, and the extracted viral DNA/RNA has high yield, high purity, stable and reliable quality, and is especially suitable for automated extraction of high-throughput workstations. The nucleic acid purified by this kit can be applied to various routine operations, including RT-PCR, fluorescence quantitative PCR and other downstream experiments.

Nucleic Acid Lsolation Reagent Kits,Dna Purification Kit,Viral Rna Extraction Kits,Nucleic Acid Extraction Reagents

Jilin Sinoscience Technology Co. LTD , https://www.jlgkscience.com