How to prevent peaches from falling in the protected areas

The main reason is that the pollination tree is not properly configured: when the garden is built, the pollinating tree or pollinator tree is not configured properly. The temperature of the sheds was too early to be raised: Some farmers stopped the sheds to warm up before they could meet the market demand for peaches. This caused the peach tree to blossom and irregularly bloom, and the fruit setting rate was low or the buds were dead and falling off.

Improper temperature regulation: First, after the shed is heated too fast, resulting in tree growth abnormalities; Second, the temperature is too high, the ground temperature is too low, causing tree tree, underground growth disorders; Third, the temperature is too high, the night temperature Low, the tree is difficult to adapt to large temperature changes, easily lead to freezing of flowers, causing poor fruit set; Fourth, the humidity is too high in the shed, is not conducive to the spread of pollen, resulting in poor pollination fertilization, causing flowering, fruit drop. Poor soil: Excessive soil moisture, poor ventilation, easy to cause root oxygen deficiency, inhibition of nutrient, water absorption, supply, resulting in a large number of falling flowers, fruit drop. Improper spraying of pesticides: If unfermented fertilizer such as chicken manure or ammonium bicarbonate is used, a large amount of ammonia gas is released, causing damage to peach trees, resulting in falling flowers, falling fruit, or using inferior chemical fertilizers, causing root damage.

The solution focuses on pollination: rational allocation of pollination trees, artificial pollination or bee feeding at flowering stage, especially for varieties with low self-cultivation rate, rolling 2 or 3 times with chicken feathers or 1 to 2 boxes of bees per shed at flowering Or 120~150 head wall bees. Accurately grasp the warming time of the shed: The appropriate time for warming the shed must be determined according to the local climatic conditions and the required amount of cooling of the peach cultivar. Adjust the temperature inside the shed: After the shed is warmed up, it is not easy to increase the temperature. Generally, the temperature rises by 1°C~2°C per day, and the temperature rises to 20°C in the daytime in about 20 days. While maintaining suitable temperatures, the ground temperature cannot be ignored.

Ways to raise the ground temperature: First, after watering, we must take care of the ground and cover the mulch as soon as possible. Second, do not water the flowers after the sheds are closed to the flowering period. The third is the timely decomposing after sunrise in the morning. The fourth is the application of organic fertilizers. Control the humidity of the shed: The relative humidity of the air during flowering is controlled at 50%. Ventilation should be strengthened under the premise of maintaining the temperature within the facility. Lime, ash, cinder, etc. can also be absorbed in the shed. The relative humidity of the soil was maintained at 60% to 70%. A water was poured before the shed, and the land was covered with a plastic film after the land was dry.

Spraying should be careful: choose high-efficiency, low-toxicity, pollution-free high-quality pesticides, and strictly control the preparation concentration of pesticides, the concentration of which is lower than that of exposed land, especially those containing hormones. Fertilization should be scientific: In addition to selecting high-quality fertilizers, it is necessary to use adequately cooked organic fertilizers to minimize the application of chemical fertilizers. When fertilizing, it is necessary to open the ditch or dig a hole to apply it, and cover the soil. It is not appropriate to spread on the ground. The application of chemical fertilizers should be handled in small quantities and dispersed evenly.