Three Ways to Improve Fruit Setting Rate in Sweet Peppers in Early Spring
In the early spring, the sweet pepper colonization period in the greenhouse is generally in February and March. During the flowering period, it often encounters the cold snow weather, which leads to poor flower bud differentiation, severe flowering and fruit falling, which seriously affects the yield and income. Here are three ways to improve the fruit-setting rate of greenhouse sweet peppers.
First, improve the lighting conditions and increase the temperature. In the case of cloudy snow and low temperature weather, additional lights can be added in the shed. At the same time, a reflective screen was hung on the back wall to increase lighting in the shed. Clean the film and improve the light transmittance of the film. Strengthen pruning management, remove excessive leaves, especially the inner leaf, increase the light rate of leaves and buds, reduce nutrient consumption, and increase the fruit setting rate.
Second, reduce the humidity within the greenhouse, insect pollination. Sweet pepper in the pollination period of the humidity is more demanding, encounter low temperature and even cloudy days, shed indoor humidity is too large, easily lead to sweet pepper pollen development, decreased activity, can not be completed normally pollination. Before and after noon, according to the weather conditions, you can let the air cool and dehumidify and reduce the humidity in the shed as much as possible. In addition, the release of bumblebees in sheds can significantly increase the fruit setting rate of sweet peppers.
Third, spray fertilizer and plant regulators. Boron is one of the essential elements in the flower bud differentiation of sweet pepper plants, but boron is often easy to cause flower buds to be poorly developed. Spraying boron-containing liquid fertilizers before flowering can supplement the plants with nutrients, improve anti-resistance, and reduce flowering and fruit drop. Spraying 30-40 mg/kg naphthalene acetic acid can also play a very good protective effect.
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