At the present stage of nitrogen control, no nitrogen fertilizer is generally applied, and shallow water supply methods can be used to maintain relatively stable soil and air humidity.
Picking the leaves will cover 1-2 old leaves on the apple and increase the utilization of direct light.
Fertilizer application of potassium dihydrogen phosphate and foliar spraying of potassium dihydrogen phosphate are beneficial to coloring.
During the coloring of the Guardian Red Fuji apple, diligent tree trays should be avoided to damage the shallow root system.
The early harvest of late harvest has a great influence on the coloration and quality of apples. Premature harvesting, poor coloring of apples, poor quality, generally 175 to 180 days after the deferred harvest is timely harvesting period, the closer to the late, the greater the temperature difference between day and night, the more conducive to fruit sugar coloring.
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