ask:
The five-year-old yellow-skin tree that is planned to be fruited next year, is it best to pick up the second autumn? When does it take up at the latest to affect flower bud differentiation (or specify the annual yield)? The flower bud differentiation period of the yellow fruit tree is generally from December of each year to January of the next year, that is, if the autumn shoot is delayed, the late autumn shoots should be fully enriched in the middle and late November. From mid-October, the weather is getting colder and colder, and the cold weather is not good for the autumn shoots. Therefore, if the first autumn shoot is already fully cooked, arrange for the last autumn shoot to be released before mid-September. In order to make the last autumn shoots as planned, it is recommended to properly fertilize the roots of the plants, and the fertilizers should be quick-acting compound fertilizers. Open shallow trenches under each canopy drip line and apply about 0.3 kg per plant.
In addition, the trimming work should also be carried out. Cut the old autumn tip from the top down about 5-10 cm to promote the last autumn shoot. The new shoots start about 5 mm, paying attention to the spraying of leaf-eating pests dominated by the leaf miner. Spray once every 10 days or so. The following drugs can be used alternately. 20% good Anwei emulsifiable concentrate (butyl thiocarbacarb) 1000 times solution or 25% sputum suspension agent (thiophene) 550 times solution or 53 grams / liter of chlorpyrifos suspension agent (pyridazole) 650 times solution. In addition, at the same time as spraying insecticides, add humic acid Kangbao or seaweed, or the foliar fertilizer such as Shikede or Greenjin, to increase the accumulation of organic carbohydrates in the plants, to differentiate the flower buds and to bloom next year. advantageous.
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