After harvesting the nectarine fruit in the greenhouse, the tree vigor needs to be restored, and the flower bud quality and tree structure of the next year must be considered. Therefore, soil and fertilizer management, pest control and plastic trimming at this stage are very important. First, post-harvest pruning In the result period, the tree body has been formed within the unit area and the space is basically full. However, after the shed is removed, it has the same growth time as the open field. If it is not carefully trimmed, it will inevitably cause severe depression. At this time, the outside temperature is low, and the greenhouse peaches need to be slow and long, which is a good time for moderate recutting. 1. Conventional pruning method â‘ Thinning weak branches, diseased insect branches, dead branches, drooping branches, over-dense branches and peripheral over-branched branches, opening the light path is conducive to flower bud differentiation. â‘¡ Retracting branch group, that is, shrinking the original branch group consisting of more than 4-6 fruiting branches into 2-4 branches, and leaving 2-4 buds in the group to shorten the truncation, promote new branches, and cultivate into New branches set. â‘¢ The large branch group in the lower part of the tree crown may sag after fruiting, and it needs to be supported and topped to restore its growth. â‘£Dense planting often shows the phenomenon of strong up and weak down. At this time, it is necessary to re-cut the upper branches to remove the strong and weak, and inhibit the growth. 2. Recutting method â‘ Main stem and "Y" shape are used for high-density cultivation. After harvesting, the branch group is retracted to the base 2-3 buds (about 5-10 cm in length), so that the base is single bud or lurking. Buds germinate and grow around the trunk and main branches. When the new shoots grow to 30 cm, the leaves are sprayed with 15% paclobutrazol 100-300 times solution 2-3 times, and potassium dihydrogen phosphate is sprayed at the later stage to promote flower bud formation. â‘¡ Retraction can be performed in steps. One is to cut one side first, and then cut the other side after 1 week. The other is to cut the lower branches, and the upper branches are cut after 1 week. When the strength is strong and the strength is weak, the upper part of the branches should be thinned to promote the lower part to germinate. â‘¢ A small amount of fine twigs with intact leaves must be left as a source of organic nutrients for each recutting, and should not be shaved at one time. Branching can also be performed, that is, re-cutting a part of the branches and cutting off some branches, and then cut off when the new buds germinate about 10 cm. Second, topdressing fertilizer Combined with post-harvest re-shearing, one trenching and fertilization was performed. Dig a small trench 50 cm long, 30 cm wide, and 25-30 cm deep between the rows. The trench is located between the two trees. If the row spacing of the plant is larger after thinning, the fertilization ditch can be larger. When the row spacing is 2-3 meters, a trench can be dug. Apply rotten organic fertilizer in the ditch, and then add nitrogen, phosphorus, and potassium compound fertilizer, 0.25-0.5 kg per plant. Disclaimer: Some articles on this website are transferred from the Internet. If you have third party legal rights, please inform this website to deal with them. phone
Natural extracts are biologically active compounds or mixtures extracted from various plants and animals or microorganisms in nature. These extracts contain a wealth of chemicals, Such as alkaloids, flavonoids, saponins, polysaccharides, volatile oils, collagen, proteins, peptides, enzymes, antibodies, antibiotics, Amino Acids, nucleic acids, enzymes, monosaccharides, oligosaccharides, polysaccharides, glycoproteins, resins, colloids, lignin, vitamins, fats, oils, waxes, alkaloids, volatile oils, flavonoids, glycosides, phenylpropanoids, organic acids, phenols, quinones, steroids And antibiotics, etc. Natural Extracts, Chinese herb extract, plant P.E., Herb extract Xi'an Day Natural Inc. , https://www.dayqc.com
What is Natural Extracts?
Natural extracts have received attention in several fields due to their wide range of sources and potential multiple uses. They can be used in the pharmaceutical industry as ingredients in medicines or health supplements; In the cosmetic industry, as a functional or active ingredient to improve skin health; In the food industry, as an additive or flavoring agent to increase the nutritional value and taste of food; In addition, they have different applications in the fields of agriculture, environmental protection and scientific research.
Extraction methods include solvent extraction method, ultrasonic extraction method, microwave extraction method, enzyme extraction method, supercritical fluid extraction method and microwave assisted extraction method, etc. The choice of which method usually depends on the nature of the substance to be extracted and the target requirements of the final product. With the development of technology, the extraction process is continuously optimized to improve extraction efficiency, reduce environmental impact and maintain the biological activity of the extract.