A Complete Analysis of the Latest Management Key Points for Indian Jujube During the Fruit Enlargement Stage
Indian jujube, also known as sweet jujube, has fruit that is rich in nutrients, crisp and sweet, and contains large amounts of vitamins and trace elements. It is a superior tropical fruit developed through improved breeding. Management during its fruit enlargement stage is extremely important and directly affects yield and quality, so how should Indian jujube be managed during the fruit enlargement stage? Let's take a look together.
1. Water Management
During the fruit development stage of Indian jujube, the plant needs large amounts of water. At this time, alternating drought and moisture can easily cause serious fruit drop, but before harvest, flood irrigation should be avoided, otherwise the fruit will absorb large amounts of water, causing sugar content to decrease or fruit cracking, greatly affecting quality. From fruit set to the enlargement stage, the soil should be kept moist, and when young fruit begins to enlarge, the plant's water demand increases sharply. At this time, water supply must be kept sufficient, otherwise deformed fruit or stiff fruit can easily form. In the late enlargement stage, water should be properly controlled to promote sugar accumulation, increase fruit sweetness, and improve quality.
2. Fertilizer Management
After the first batch of flowers sets fruit and begins to mature, the main goal is to promote fruit enlargement in the middle and late stages. At this time, the plant's water and fertilizer demands are extremely high, especially for nitrogen, calcium, and magnesium. Therefore, when fertilizing, attention should also be paid to maintaining medium and trace nutrients such as magnesium, calcium, and boron. This promotes fruit growth and enlargement, and can also improve the plant's disease resistance and reduce the chance of infection by pests and diseases. The Indian jujube plant has a well-developed root system, with most roots distributed in the shallow soil layer, and has a strong ability to absorb fertilizer. The amount of fertilizer needed in each period is large, but the fertilizer types differ, so fertilizer management for Indian jujube must not be careless and should supply fertilizer according to the needs of the plant at each stage.
3. Foliar Fertilizer
In the middle and late stages of plant growth, root absorption weakens and cannot satisfy fruit growth and development and new shoot emergence, so foliar fertilizer needs to be sprayed in time. During the fruit-strengthening stage, 1 bag of Jiamei Hongli can be applied by flushing per mu, while 1000-times liquid Jiamei Nao Baijin can be sprayed on the leaves 2-3 times. In addition, in winter, cold protection and freezing resistance should be done well. You can apply 1 bag of Jiamei Hongli by flushing per mu to increase ground temperature by 3-5 degrees C, and spray 1000-times liquid Jiamei Jindian on the leaves 1-2 times to prevent freezing and damage.
4. Pest and Disease Control
Indian jujube has relatively strong disease resistance, so the chance of pests and diseases occurring is relatively low, but once pests or diseases occur, the consequences are relatively serious, so pest and disease control in the later stage of Indian jujube should be strengthened. The main disease is powdery mildew, and the main pest is red spider mite. Pest and disease control emphasizes prevention. First, strengthen orchard management, prune reasonably, avoid forming excessive vegetative branches, low branches, and overlapping or crossing branches, and improve orchard ventilation and light penetration. Pay attention to orchard cleaning. After cleaning the orchard, take diseased branches, leaves, and diseased and damaged fruit out of the orchard, then comprehensively spray fungicides and insecticides. In the early stage of pest and disease occurrence, ethirimol, pyraclostrobin plus tebuconazole, Lufei, etc. can be sprayed alternately for control.
The above is an introduction to the key management points for Indian jujube during the fruit enlargement stage. We hope it can help you. If you want to learn more related knowledge, please follow us.