What does cherry tree fall spring cold protection method to have? 7 tips to help fruit growers avoid extinction!

The late spring cold is the "killer's mace" of crops. In March and April, it is the main node of the flowering and young fruit growth periods of some crops, and a late spring cold is likely to result in reduced production or even no harvest. For example, cherry trees that are sensitive to environmental changes should take protective measures. What are the measures to protect the cherry trees from the cold in spring? 7 tips to help fruit growers avoid extinction!

Protective measures against cold in late spring of cherry trees

1. Master the law of weather change

It is necessary to grasp the occurrence law of late spring cold in time, look more at the recent weather forecast, and take preventive measures in orchards at any time, so as to avoid late spring cold and farmers are caught off guard.

2. Bacon in time

In the process of weeding in spring, shallow ploughing was carried out between rows and plants of cherry trees, and soil cultivation was also carried out on the roots to improve the surrounding soil temperature through soil cultivation and other measures. If it is a greenhouse cherry, if possible, you can add a small arch shed to increase the temperature in the shed; you can also choose to cover the roof with thermal insulation quilt, grass curtain and so on, so as to improve the temperature in the greenhouse to protect against the cold.

3. Proper watering

Before and after flowering, according to the weather forecast, irrigate the whole orchard the day before frost or spray water 1-2 hours before frost, rely on water condensation to dissipate heat and increase the temperature of the orchard. Watering the big cherry orchard one week before flowering can delay flowering by 3 to 5 days and avoid the low temperature period.

4. Spray antifreeze

When the cooling range is expected to be small in the big flower bud stage, not less than minus 2 ℃, spraying protective agent can protect against cold to a certain extent.

5. Fertilizer and water management

It is necessary to increase the application of organic fertilizer and basic fertilizer to protect the leaves, and at the same time pour frozen water before freezing to improve the frost resistance of the tree; increase the nutrient reserve of the tree; strengthen the work of drainage and waterlogging prevention to prevent the decline of the tree.

6. White tree trunks

Applying whitening agent on tree trunk has obvious effect of heat preservation and anti-freezing, which is made by the ratio of quicklime 10 kg + salt 2 kg + sulfur powder 1 kg + animal and vegetable oil 0.1 kg + water 20 kg. Before preparation, hydrated quicklime and salt were used respectively, remove the ash, add sulfur powder, animal and vegetable oils and mix well.

7. Smoking

Smoking can not only increase the orchard temperature by 2-4 degrees, but also slow down the decline of orchard temperature by preventing the emission of ground heat through the smoke screen, and avoid or reduce the harm. The most commonly used smoking method is to light a cigarette pile in the garden, preferably more, set on the windward side when there is wind, and evenly arranged around and in the middle when there is no wind. In order to save material and labor, the ignition time is best to start when the temperature is close to zero and continue until after the sun comes out. In addition, there is also a way to string the garden with some grass, but the effect is not as good as lighting a cigarette pile.

The cold season in late spring is the key period for the growth of cherry trees. Only by taking adequate protective measures can we ensure the high yield of fruit trees and improve economic benefits.