Promote the coloring of cherries in the greenhouse

Spraying the fruit surface without film bag can play the role of bagging, will not affect the fruit respiration, but also can prevent fruit rust and cracking, improve fruit surface coloring and brightness, reduce residual poison and improve quality. Foliar spraying of new high-fat membrane can prevent leaves from being infected with virus, make branches and leaves green and luxuriant, and enhance the accumulation and directional transport of photosynthetic products. On the basis of reasonable shaping and pruning and improving the ventilation and light transmission conditions in the crown, the leaves that block the light of the fruit can be removed during the fruit coloring period. However, the degree of picking leaves should not be too heavy, so as not to affect the differentiation and development of flower buds. Lay a reflective film under the canopy 10-15 days before harvest to increase the light reflection under the crown and promote the fruit coloring. If the fruit coloring period has been too late frost, you can consider removing the top film to improve lighting and promote coloring.