Pingyin County, Jinan City, Shandong Province, as a key planting area for red grapes, has a long history of cultivation. The red grapes of Pingyin County have the advantages of large grains and thin skins, sweet taste, firm flesh, and storage and transportation. Red grapes are imported varieties, and planting management requires higher technology. Grape planting experts put forward the precautions and solutions for cultivation and management. Seaweed extract can be used to improve the soil, combined with liquid seaweed fertilizer to irrigate roots, and condition the soil to promote new roots to germinate.
Grape fertilization can be applied by deep application or shallow application according to different types of fertilizers. Generally, base fertilizer should be applied deeply, and topdressing should be applied shallowly. During the growth period, seaweed fertilizer should be applied in a furrow within about 1 meter from the main grape vine, and covered with soil after application.
2. It is not advisable to irrigate more before flowering.
Proper irrigation combined with fertilization before flowering is an effective measure to increase the fruit setting rate of grapes, but the irrigation should be appropriate and appropriate. Irrigation before flowering will inhibit the rise of soil temperature, affect root activity, and reduce the absorption of fertilizer by roots. Therefore, the soil is not very dry at this time, and generally do not irrigation; when the soil is dry, the amount of irrigation water should not be too large. During this period, the growth and development of leaves are accelerated, and there is more demand for trace element iron. Irrigation reduces the soil temperature and hinders the absorption of iron elements. The leaves are prone to yellowing, showing symptoms of iron deficiency. . If it is indeed necessary to irrigate due to high temperature, severe soil moisture shortage and severe drought, it is best to adopt the method of intermittent watering, and the amount of irrigation water should not be flooded to prevent excessive humidity in the garden and increase the probability of disease infestation.
3.Fertilizer selection should be suitable for the needs of each growth period.
Fertilization at the flowering stage can use seaweed extract fertilizer, which can promote the early recovery of tree functions and prevent premature aging. Grapes are fruit trees that require a lot of potassium. Potassium sulfate is better when applying potassium fertilizer.
