Orchard management in early spring
Clearing the garden before the fruit trees in the artificial clearing garden can effectively eliminate a variety of overwintering insects, eggs, and germs, reduce the source of infestation, and reduce the wintering base of the pests. After being shocked, combined with early spring re-shearing, remove the winter overgrown straw handles at the root and neck of the trunk, remove the overwintering pest cocoons on the branches, clean the litter, litter, weeds, and fallen fruit in the orchard, and focus on burying or burning . Soil management After the soil is thawed, it can be turned 10-20 cm shallowly and 30-50 cm deep between rows. In addition to curing loose soil, improving soil physical and chemical properties, and improving soil moisture retention, it can also hide in the soil under the crown. Underground pests such as winter crickets, scarabs, gold needles, and tigers in layers, soil cracks, etc. that emerge from the ground and die, freeze to death, or be eaten by birds, have a greater effect on reducing the source of diseases and insects that year. The application of germination fertilizer in early spring fruit tree germination, flowering, and new branch growth require a large amount of nutritional supply. To ensure the germination of the new shoots and the growth of the new shoots are robust, germination fertilizer should be applied. If fertilization is not timely in early spring, it will lead to poor growth of branches, severe flower and fruit drop, and affect fruit yield and quality. Therefore, based on the application of base fertilizer in the fall of last year, according to the characteristics of fertilizer requirements of the fruit tree during the phenological period, the nitrogen fertilizer-based quick-acting fertilizer can be applied once before germination to supplement the large amount consumed by the tree's germination, flowering, fruit setting and new shoot formation. Nutrients. The amount of topdressing varies with soil, tree vigor, tree age, and yield. Before flowering of apples, pears, peaches, grapes, persimmon trees and walnuts should be topdressed in time during flowering. It is advisable to apply 1 kg of nitrogen fertilizer, 0.5 kg of phosphorus fertilizer, and 0.6 kg of potassium fertilizer per 100 kg of fruit. After the leaves are fully unfolded, external root can be used for topdressing. Spray 0.3% urea solution or 0.3% potassium dihydrogen phosphate solution. Orchards with small leaf disease can be mixed with 0.2% -0.4% zinc sulfate solution. Spraying borax can increase the fruit setting rate of fruit trees. The early spring spraying of the whole garden is the key period for the control of fruit tree diseases and insect pests. The focus is on eradicating overwintering diseases and insect pests and controlling branch diseases. Before germination, spray the removal agent on the tree body, especially the trunk, such as 3-5 Baumedu stone sulfur mixture. Spray the ground with insecticidal fungicides such as phoxim, cypermethrin, methyltobrazine, and mancozeb, and loosen the soil. After spraying, spray again to kill insects, eggs, and bacteria, and effectively control the pests unearthed in winter. , To reduce the harmfulness of diseases and pests in the orchard that year. Watering the early spring fruit trees before and after flowering requires a large amount of water. From mid-late March to early mid-April, germination water is poured once with topdressing. Watering before flowering is conducive to fruit tree flowering, new branch growth and fruit setting, and watering after flower blooming can alleviate the growth of new shoots and young fruits competing for water, and avoid a large number of fruit drops. After the water seepage, the saplings can be used to cover the tree sap of the young trees in time, which can increase the ground temperature, protect the moth, and promote the coordinated growth of the fruit trees on the ground. Disclaimer: Some articles on this website are transferred from the Internet. If third party legal rights are involved, please inform this website to deal with them. phone Eye Massage,Best Eye Massager,Eye Care Massager,Eye Roller Massager Shenzhen Jie Zhong Lian Investment Co., Ltd. , https://www.meizons.com