How to topten fruit trees in summer

Â Â Â Â Â Summer fruit topdressing has the effect of promoting fruit enlargement and flower bud differentiation. There are two kinds of topdressing methods: under tree root application and foliar application.

Â Â Â Â Â Top dressing Â The summer topdressing of fruit trees should be based on phosphorus and potassium fertilizers, with a small amount of nitrogen fertilizer applied. The amount of top dressing depends on the species, age, fruit weight and base fertilizer status. For saplings that have not entered the fruiting stage, each plant can be applied with 0.2 to 0.25 kg of phosphorus and potassium fertilizers . For the general result of large trees, each plant is applied with 2.5 to 3 kg of superphosphate , 10 to 15 kg of ash , and 2 kg of ammonium sulfate . The method of topdressing is to dig a hole in the vertical line of the canopy to the inner 1 meter, the hole distance is 30~40 cm, the depth of the hole is 15~20 cm, and the soil is covered after application. Conditional orchards are topdressed and then watered.

Â Â Â Â Â Foliar spray Â Foliar spray application during fruit expansion has the effect of enhancing tree potential, promoting fruit enlargement and improving quality. Spraying concentration of ammonium sulfate, 0.2% urea, 0.3% to 0.5%, potassium 0.3%, 1% to 3% superphosphate, potassium dihydrogen phosphate 0.3%. The effect of spraying on the leaves of mountain fruit is better.
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