Pruning effect of navel orange tree
Pruning navel orange trees is a very important link and the most effective method to improve yield and fruit quality. It can also promote the tree to form a high-yield tree shape, make the tree ventilated and transparent, reduce the occurrence of pests and diseases, and improve the fruit quality.
Pruning time of navel orange tree
Navel orange trees grow faster in spring and autumn, so they can be pruned in spring and autumn, and they also need pruning after it rains in spring and autumn. Navel orange trees need pruning three times a year, and the pruning cycle is different in different planting areas.
Pruning method of navel orange tree
1, young tree pruning
The new shoots of navel orange grow well. As long as the new shoots are smeared and controlled, they can be pruned at seedling stage. During cultivation, available nitrogen fertilizer should be applied in the first half of the new shoots, and fertilizer should be sprayed outside the roots before the leaves turn green to promote them to turn green, and fertilization should be controlled in the rest time.
2. Prune the result tree
Three-dimensional results of culture: According to the growth characteristics of navel orange branches, the upper and inner branches are left, and the pruning should be light at this time. If the fruiting branches are strong after picking, they can still grow well from the base of the fruit stalk in the next spring, and they can be kept. If the fruiting branches are slender and weak, they can be cut off from the base.
Branch regeneration: navel orange trees can be pruned in summer, which can reduce the loss of nutrients, solve the contradiction between fruit branches for fertilizer and promote the growth of new shoots. In Pingyuan County, Guangdong Province, summer pruning is generally carried out after the fruit matures and before the fruiting of the mother branch, and winter pruning is carried out after the fruit is picked and before the spring germination. Prune the branches of pests and diseases in combination with clearing the garden.
3. Pruning of old trees
For severely aged or shaded trees, the main branches can be renewed, generally sawed off about 50 cm at the base of the main branches, and some aged branches can still bear fruit. In 2-3 years, the treatment of heavy and short branches is carried out alternately, and the over-dense and weak side branches are loosened, and the stronger branches are retained.
Points for attention in pruning navel orange trees
The pruning of navel orange trees should be based on the growth situation, and the diseased leaves and dead leaves should be cut off in time to ensure good growth. Generally, the bud wiping of navel orange should be carried out when the new shoots grow to about two centimeters in summer and autumn, and some useless buds should be wiped off to avoid competing with the fruit for nutrition.