In the pepper production process, sometimes the fruit becomes smaller and the texture hardens. This is the performance of the chili pepper. Chili nuts are also known as stone fruit, unisexual fruit, and female fruit. Early small persimmon-shaped fruit, later fruit was strawberry-like, skin thick meat hard, bright color, long handle, fruit no child or less, no spicy taste, fruit does not expand, the environment will not recover after the development of the normal, but new The fruit of the knot is basically normal and can show the characteristics of the species.
First, the reason:
The main reason for the stale fruit production is that the fruit is not supplied with enough nutrients, which hinders the development and stops the growth prematurely. The specific reasons are as follows:
1. Poor pollination and fertilization. In the flowering period of pepper, if unfavorable low temperature or high temperature conditions (below 13°C or 35°C) are encountered, pollen cannot grow and spread normally, and the pistil can not be fertilized normally, and parthenocarpy appears. This fruit is lack of growth hormone. Affect the absorption of nutrients, and the formation of a stalemate.
2. The plants are long. In the growth process of pepper, if the ventilation is poor, high temperature and humidity conditions cause the plants to be long, and the nutrients of the leggy plants are used for the growth of stems and leaves, and the young fruit cannot be supplied with sufficient nutrition to stop growing and form a stale fruit.
3. Too much fruit. When the plant growth potential is weak and the number of fruit set is excessive, some fruits with late fruit setting or poor position often result in stale fruit due to insufficient nutrition supply.
4. Poor growth environment. During the result period, if the field is prone to drought for a long time; or if excessive burning occurs, burning roots occur; or if the disease and insect pests are seriously damaged and the leaf area is insufficient, malnutrition of the fruit will be caused and a stalemate will be formed.
Second, control methods
1. Use winter strong varieties. Such as claw king, Taiyuan 22, Xiangyan 15, and so on. Before sowing, seeds should be soaked with 1000 times potassium permanganate to kill pathogens.
2. Timely seedlings. The seedlings must be seeded in 2-4 true leaves to prevent the sub-seedlings from damaging the roots too late, affecting the nutrient supply during flower bud differentiation, resulting in thin flowers and incomplete flowers, which affect pollination and fertilization. When seedlings were divided, they were irrigated with 700-1000 times zinc sulfate to increase root length and growth rate, and increase root absorption capacity and plant stress resistance.
3. Reasonable colonization. When planting, it is advisable to place the nutrient soil to a level below ground level and then cover the soil to a height of 3-5 cm. During the flower bud differentiation period, it is necessary to prevent drought, and at other times, water control promotes roots to prevent plant growth.
4. Environmental regulation. During flower bud differentiation and pollination and fertilization, environmental conditions must be strictly controlled. The indoor temperature is controlled at 23-30°C during the day and 18-15°C at night. The ground temperature is generally between 17-26°C, and the soil moisture content is equivalent to 55% of the maximum water holding capacity. . To ensure the normal growth of the flower, so as not to pollinator fertilization bad.
5. Pay attention to fruit thinning. The number of fruit set in the plant should be appropriate. Fruit should be kept according to the growing trend of the plant. Excess fruit should be removed as soon as possible.
6. Control pests and diseases. In the process of pepper cultivation, it is necessary to timely prevent and control the occurrence of pests and diseases, protect plant stems and leaves, and promote the robust growth of pepper.
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