It is said that the year's plan lies in spring, which is very important and critical for the management of jujube trees. After the beginning of spring, the winter jujube in the greenhouse has entered the bud period. At this time, management must be strengthened. Let's talk about the management method of the winter date in the greenhouse.
I. After the sterilization of the garden is cleared, the temperature rises, and the overwintering diseases and insects also recover, and they begin to spread, infect, and harm the plants. Therefore, a comprehensive garden cleaning is required. 300-400 times of bacteramide can be selected. -1500 times spraying insecticides and fungicides such as chlorpyrifos in the whole garden, reducing the number of disease and insect bases in the jujube garden, and providing a favorable environment for the growth of winter jujube during the bud period.
2. Watering and fertilizing the shed requires watering once to increase the humidity in the shed, which helps root activities to promote root growth. At the same time, it can supplement the soil fertility according to the amount of fertilizer applied last year, promote root absorption of nutrients, and promote germination and neatness. Fertilization can be applied with high nitrogen mixed fee + rooting agent, supplemented with * fertilizer fertilizer to improve root vitality, promote root growth and germination.
3. Weeding in middle-tillage and warming with plastic film. Since weeds in the shed will promote the rapid growth of weeds in the shed, timely weeding and mulching with plastic film on the shed can reduce weed growth on the one hand and increase ground temperature on the other The uniform increase of the above-ground and underground temperatures helps the winter jujube tree to sprout in advance.
Fourth, germination promotes growth, the buds are tidy and the temperature in the greenhouse rises rapidly during the bud period, but the ground temperature rises slowly, resulting in fast nutrient flow in the tree body, poor nutrient absorption capacity of the root system, uneven germination of jujube stocks, and subsequent branching and leaf development. Flowering fruit set has a greater impact. The whole plant can be sprayed with Amino Acid foliar fertilizer to promote the germination of jujube stocks, and the buds can be germinated quickly and neatly. At the same time, the resistance of jujube trees can be enhanced, and the jujube leaves can be promoted.
5. Wiping bud winter jujube tree has strong germination ability, and each jujube stock will germinate new jujube heads. If it is not necessary to cultivate extended branches and fruiting branch groups, it should be wiped from the base in time. The earlier the better, the more effective it is. Reduce nutritional consumption and promote jujube growth.
Sixth, disease and pest control Jujube tree germination period is the period with the most occurrence of diseases and insect pests. The inadequate control during the germination period is likely to lead to a reduction in production and income in the later period. Insect pests mainly control jujube ruler, jujube mosquito, green blind maggots, blind maggots, as well as jujube flying elephants, jujube slimeworms, jujube spine moths, red spiders, etc .; the diseases focus on prevention of black spot, ulcer, leaf blight, tenderness Shoot scorch disease, and also cure jujube branch disease. Often choose triclosan, imidacloprid, poison arrow, chlorpyrifos, acetamiprid, carbendazim, mancozeb, mancozeb, and thiophanate.
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