Recently, a lot of vegetable farmers in the streets of Shouguang City called the phone, reflecting the recent sweet peppers sit and stay fruit, even if the bell peppers sitting fruit grows very small. Subsequently, the reporter was invited to Gaohuai Village in Luocheng Street, and found that a lot of peppers that had been sitting were very long (long flower needles could catch the diameter of the bell peppers). What is the reason why the needles are too long? The reporter consulted relevant experts and summarized the reasons for the following aspects.

The first is that the night temperature is high recently, and the small temperature difference between day and night causes the flower needle to become longer. The reporter learned that many local vegetable farmers started to close the outlet at around 4 pm in the afternoon, causing the night temperature at the shed to be around 18°C. Such a high night temperature can easily lead to plant growth and poor flower bud differentiation, resulting in excessive flower needle formation. It is not surprising. Therefore, vegetable growers can delay the time of closing the wind, in order to increase the temperature difference between day and night, generally the night temperature is maintained at about 13 °C, and the temperature difference between day and night is more than 10 °C. In addition, in order to prevent the growth of plants, plant growth regulators (such as auxin and chlormequat) may be sprayed to regulate plant growth.

Second, the lack of boron can also lead to longer needles. Relevant experts pointed out that in the flower bud differentiation period, that is, the critical period for plants to require boron fertilizer, so in this period we must apply enough boron fertilizer. If the boron deficiency during this period, will lead to poor pistil differentiation. Especially at lower temperatures, the effect of boron deficiency on flower growth clearly shows the phenomenon of small flowers and long needles. The vegetable farmer friend lacks the element of preventing boron, can use one kilogram of borax with the mu, rush to the ground with the water, can also spray borax 600 times or 1200-1500 times of speed of boron.

In addition, the supply of water and fertilizers is insufficient. Due to the low temperature, vegetable growers can prevent the ground temperature from decreasing after fertilization and affect the growth of sweet pepper roots. Generally, they will reduce the number of watering and fertilization, resulting in insufficient supply of sweet and sour bell pepper during the fruit expansion period. The phenomenon of long needles appeared in the pepper. Therefore, the reporter suggested: In order to prevent the ground temperature from decreasing too much, the farmers can use the method of pouring organic fertilizer by pouring small water and meet the nutrients needed for puffed peppers.

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