When is chinese dried red date ripe?
Month | Puberty |
Fertility
process
|
Suitable
weather
conditions
|
Unfavorable
weather
conditions
| |
May-June
|
Flowering
period
|
The flowering period is mostly at the end of May, June.
| Daily average temperature is 24-26 degrees; soil moisture is 70-80%; June ≥10mm precipitation for more than three days |
(1) The average temperature below 23° after flowering for 3 days is unfavorable for sitting fruit;
(2) cold wave, continuous low temperature, and serious decline in output;
(3) The air humidity is less than 40% and it is almost impossible to germinate;
(4) Too much drought affects pollen development and pollen tube growth, leading to flowering and fruit setting;
(5) The pollination fruit is affected by cloudy days for three consecutive days;
(6) There are many jujube flowers, and the amount of falling flowers is large. The flowering rate of general varieties is 80-90%, the number of physiological fruit is 70-90%, and the number of ripe fruits is only 0.4-2% of the total flower. . Falling fruit is generally concentrated in the period from the end of the flowering period to the hard core period. After the hard core, most varieties rarely fall. | |
May-
October
|
May-
June
|
Result
period
|
The first stage is the rapid growth period, which lasts 7-8 weeks; the second stage is the slow growth period, which lasts 4-7 weeks; the third stage is the pre-cooking growth period, which lasts about 3 weeks.
|
The average daily temperature is above 24-25°; the relative humidity is less than 60%; the 11-12 hours of sunshine, the branches and leaves are dense, and the fruit is swollen faster.
|
The temperature is too low;More rain in the late stage of fruit development and maturity, easy to rotten fruit, fruit drop
|
July-
August
|
Appropriate amount of water is conducive to fruit growth.
| ||||
Mid-
September
|
More than 3 days and more than 2 cloudy days, fruit rot, fruit drop
| ||||
Late
September
|
precipitation of jujube mature period >20mm, cracked fruit
| ||||
November
|
Deciduous
period
|
Take the leaf protection measures, the defoliation period can be postponed for about 15 days
|
Daily average temperature 13-15°; soil moisture 60-70%; strengthen water and fertilizer management
| ||
November - March
of the following year
|
Dormant
period
|
The average daily temperature is 5-8°; the soil moisture is 60-70%; the trunk is painted white to prevent freezing damage;
|
The average daily temperature in January is ≤ -20° for 7-10 consecutive days.
|
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