Nectarine Facilities Cultivation Postharvest Management Technology

First, the correct film. After harvesting nectarines, they must remove the shed film and turn to open ground for management. However, in the production, it is easy to expose the film too quickly, resulting in “flash seedlings”. The plants have different degrees of yellowing, which takes 3 months to gradually return to normal. The correct way to remove the film: after 3-5 days of air release exercises, the resistance of the plants will be improved, and the film will be removed after 2-3 days. Second, the result is updated. The resulting branches on the plants in the facility, after a long period of growth, are not likely to form high-quality flower buds, and the re-growth can easily result in the closure of trees. To do this, one centimeter of the original result must be severely short and short. For germination, new shoots with a length of less than 30 cm should be retained. Generally, 2-3 sticks should be kept per plant, called "living sticks," to raise the tree body and restore the canopy as soon as possible. Third, avoid "strong." After the nectarine is updated and trimmed, it is prone to "strong", that is, the growth of the upper branches tends to be prosperous, resulting in "hat branches." Correct pruning method: In line with the principle of “small and large”, pruning should be carried out strictly in accordance with the spindle shape pruning method. That is, the upper part of the main trunk should be cleared of competition and excessive density, and the lower part and the middle part of the main trunk should be properly maintained. Fourth, timely use of paclobutrazol. The general colonization uses the first time in the beginning of July in the year, and 2-3 times after about 10 days. After the nectarine is harvested, it is updated and pruned, and then the new result still needs paclobutrazol for flowering. The experience in production shows that the time for the first-time use of paclobutrazol for newly-generated fruits should generally be about 20 days earlier than the year of planting. Fifth, the tree reserves nutrition. The nectarine plant adopts the dense planting method. The nutrient level of the tree reserve is often lower than the open field conditions. Therefore, more than 4,000 kilograms of soil-fertilizer per acre is required. At the same time, attention should also be paid to the use of foliar fertilizers such as photosynthetic micronutrients.