Topdressing time for fruit trees
First top dressing: Top dressing during the budding period of fruit trees can speed up the bud growth of fruit trees and increase the rate of apple formation. The main addition at this time is nitrogen fertilizer.
Second top dressing: Top dressing after flowering can effectively shorten the growth period of new branches and improve the quality of apples. In addition to nitrogen fertilizer, appropriate amount of phosphate fertilizer and potash fertilizer were added to this top dressing.
The last top dressing: Top dressing during fruit development and flower bud differentiation can increase the weight of the fruit tree and increase the yield. At this time, the main addition is nitrogen, phosphorus and potassium.
The top dressing methods of fruit trees are the soil, leaf surface and trunk. Soil top dressing Soil top dressing mainly includes radial ditch, strip ditch, ring ditch and so on. Operation: When digging a ditch, the depth of the ditch is most suitable at 10-15 cm. Set up a manure tank in the idle place of the orchard, and pour the manure of poultry and livestock. After it is fully fermented, it will be topdressed with water. Drip irrigation technology can also be used. The main fertilizers for drip irrigation are urea, potassium dihydrogen phosphate, and water-soluble nitrogen and phosphorus compound fertilizers.
Trunk injection
The trunk injection method has the advantages of no waste of fertilizer, low cost, comprehensive nutrition, and can effectively eliminate nutrient deficiency.
Operation: Choose a relatively flat place at the bottom of the main trunk of the apple tree near the rhizome, and use an electric drill to set up several infusion ports at an angle of 80 degrees between the trunk and the ground. Fertilizer is diluted according to the proportion, and the concentration of fertilizer is too high will damage the tree.
The diluted fertilizer is put into a bottle, and a professional infusion tube and needle are inserted into the infusion port for infusion. After completion, the soil should be backfilled without exposing the infusion port.
Foliar spray
Foliar spraying of fertilizer can increase nutrition for fruit trees. The advantage of this method is to save fertilizer, improve the utilization rate of fertilizer, and is not affected by soil conditions.
Operation: Foliar spray fertilizer****** On the back of the leaf, the foliar spray method can be used 4-5 times throughout the year. The fertilizer is formulated with nitrogen, phosphorus and potassium, and can also be added to other traces required for the growth of fruit trees. element. Pay attention to prohibiting foliar spraying about 20 days before apple harvest to avoid affecting the quality of apples.
Disclaimer: Some articles on this website are transferred from the Internet. If the legal rights of a third party are involved, please inform this website for processing. phone
PRP,Tube For Blood Collection,Blood Sample Collection Tube,Cosmetic Centrifuge Tube
Changzhou Timerein Biotechnology Co. , Ltd. , https://www.timereinbiotech.com