Chestnut awnings cause
Chestnut awnings are one of the important factors that affect production. To control or reduce chestnut awnings, it is necessary to understand the causes of the formation of chestnut awnings.
Varieties of different varieties, the number of male and female inflorescences are different, the consumption of nutrition is different, and the emptying rate is also different.
Poorly pollinated pollination poor fertilization during fertilization of the chestnut can cause a flyout.
Malnutrition, lack of boron in the soil, lack of available phosphorus can cause chestnut awnings.
In the year of water drought, pouring enough water or enough rainwater during the flowering period, fruit filling period and frozen period of chestnut tree can not only make the chestnut tree grow vigorously, but also significantly reduce the canopy rate.
Due to poor light illumination, water, nutrients, and oxygen in the soil are in short supply. Chestnut trees cannot perform normal photosynthesis and lead to short shoots and yellow leaves. The result is poor and the canopy rate is greatly increased.
During the flowering period of the chestnut, if the wind speed is too high, the emptying rate of the chestnut will increase. If the wind speed is too low or even without wind, the emptying rate of the chestnut will increase. The optimum wind power for chestnut flowering is generally 3-4, and there is a big difference between open areas and non-open areas.
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