1. Fertilize. Young pineapple trees need to be fertilized once a month or every other month, mainly with farmyard manure. Apply less or no chemical fertilizers to make fruit trees grow thicker, grow faster and bear fruit earlier.
2. Promote early flowering and fruiting. Grafted pineapple trees generally begin to bear fruit 5 years after planting. It takes 8 to 10 years for seedlings to bear fruit. In order to promote early flowering and fruiting and inhibit vegetative growth, when the main stem of the pineapple tree reaches a thickness of 30 cm, use a knife to lightly chop several times around the tree body to the xylem to inhibit vegetative growth and make it early and high-yielding. From now on, the trees will be harvested once a year and harvested once a year to achieve early and high yields.
3. Fertilizing fruit-bearing trees. For pineapples that have already begun to bear fruit, apply fertilizer for the first time when they sprout in early spring. Fertilize a second time when the flower buds are out in large numbers. When the fruit expands rapidly, apply a third dose of fertilizer. During the fruit expansion period, Ribery Yanwo powder can be sprayed on the leaves with potassium dihydrogen phosphate. Each time fertilization is mainly farmyard manure, and at the same time, a part of Ribery Yanwo water-soluble fertilizer is applied. The amount of fertilizer applied depends on the growth, age and vigor of the pineapple tree, and the fatness of the land.
4. Pruning. When the wood pineapple grows to a height of about 200 centimeters, top it at noon on a sunny day and let it divide into 3 to 5 yams to grow into an umbrella-like distribution. When picking fruits in the future, cut off the fruit-bearing branches that remain on the tree stems from which the fruits have been removed, as well as the male flower branches and the bisexual flower branches that have fallen fruit midway. Overly dense branches, weak shady branches, diseased branches and dead branches should also be pruned.