Vegetables grown in greenhouses often suffer from lack of light, unsuitable temperature and humidity, and can not be pollinated normally, resulting in falling flowers and falling fruit. The correct application of 2,4-D, anti-declining, etc., can increase fruit setting rate, accelerate fruit enlargement, and add production value. However, if you do not pay attention to certain details, it is very simple to affect the plant's hernia, such as showing deformed fruit, Lead to production cuts and so on.
How to use anthrax
Both 2,4-D and anti-declining substances can be used in eggplant vegetables. Studies have indicated that the use of 2,4-D has a high fruit setting rate, but has certain damage to the shoots and shoots of solanaceous vegetables. , so it is generally used to decorate or change flower stalks; and the anti-dropping elements of the young shoots of the vegetable damage is very light, the amount is appropriate and there is no damage, can be sprayed, labor saving, safe and useful, but the ratio of fruit set 2,4-D is lower.
Practice has proved that the selection of anthrax should be determined based on the growth of the plant. Plants that grow too strong or grow too weakly advocate the use of 2,4-D for flowering. For medium-grown plants, the use of anti-dropping agents is recommended.
How to distinguish the strength of plants?
Plants with thick and thin stems, large and thick leaves, dark green leaves, and high water content in the stems and leaves of the plants generally have strong growth; the stems are fine and thick, the leaves are small and thin, and the leaves are yellow-green and stem. The plants with lower water content in the leaves were weaker; the plant stems were evenly distributed on the upper and lower stems, the leaves were flat, and the leaves were green, indicating that their growth was moderate.
It's too early to spend
Many vegetable growers who have cultivated tomatoes spend a very early period of time and only need to spend some time. Often the flower buds on the top of the head are poorly differentiated. Even if they stay on the spot, they will develop into deformed fruit at a later stage.
Recommendation: Vegetable seedlings should be based on the intention of strong trees, do not leave fruit prematurely. For example, in the process of cultivation of tomatoes in autumn quinoa, the top panicles can be removed to prevent later deformed fruit from appearing, and it is beneficial to strong seedlings.
About cucumber, more than 12 leaves can start to stay in the melon, the best control from planting to production in the high temperature season 35 to 40 days, late autumn and early spring 40 to 45 days, through late fruits, late flowers, so that more nutrients to the root system And stems and leaves grow, cultivate strong trees. Azaleas should not be excessive because the “yellow dots†on the leaves of cucumbers are particularly severe (ie, cucumber spot disease) because currently there are no particularly useful drugs for the disease.
It is understood that the recent high cucumber prices, in order to more fruit set, the flowers can be paralyzed on the plants are basically paralyzed, but did not expect poor plant growth, decreased resistance to disease, resulting in a "small yellow dot" agile.
Recommendation: How much should be determined based on the growth of the plants, if the plant growth is weak, the vegetable grower should try to reduce the number of melons, keep the stems first, do not let the nutrients all provide reproductive growth, and constitute the plant leaf dysplasia, resulting in multiple diseases.
It is very important to make anthers at the first test point of dressing change. Some vegetable farmers make their own anthers. Since the 2,4-D products of the new manufacturers are replaced, if they are still manufactured according to the original concentration, the eggplants that emerged will present a lot of stale fruit. It constitutes a serious loss.
Suggestion: Do not randomly participate in the hormone-containing foliar fertilizer in the point of anther, and in the case of different temperatures to change the concentration of the agent, but in the change must first do a small area test, as long as the test can be used in large areas to prevent composition huge loss.
Spend the best time
It is possible to start flowering when the flower on top of the head is open with 2 to 3 flowers. When the flower of the female flower is completely opened and it is elongated to the bell mouth shape, the flower is most suitable. It is easy to form a stalemate too early and it is easy to make a cracking fruit too late.
Do not point the stigma liquid directly affect the stigma easy to show cracking fruit, especially when the repeat point flower is severe, it is almost a complete loss. Pay attention to the soil moisture If the soil in the greenhouse is too dry, it should be sprinkled with water before it is sprayed to prevent the formation of cracks.
Combining flowers and management
The flowers on the top of each inflorescence are simply deformed and should be removed before the flowers are spent. After fruiting, the fruit growth rate is accelerated. It is necessary to release air in a timely manner to eliminate moisture, strengthen water and fertilizer management, and do a good job of pest control.
Accurately grasp the time spent
Hormone treatment of flowers as long as 3 days, the day of flowering and open two days before, early treatment can easily constitute a stalemate, and the subsequent treatment of fruit set rate decreased. It is best to select the day when all the aubergine blossoms become purple open day.
Reasonably regulate plant growth
Too weak and overly vigorous plants will affect hormone treatment. The weak pedicels of weakly growing plants are thin and thin, and the hormone treatment is very simple. Plant nutrients grow too high, inhibiting reproductive growth, but also affect hormone treatment. Therefore, strong seedlings should be selected when planting, appropriate seedlings after planting seedlings, control of water and fertilizer and temperature, so that nutrient growth and reproductive growth reach equilibrium.
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