Fertilizer management of winter jujube flowering
Spraying micro-fertilizers and plant growth regulators during flowering, spraying plant growth regulators, micro-fertilizers and other substances is a necessary means to promote fruit setting. Such as gibberellin (920), jujube spirit, borax, urea, etc., have a significant effect on improving the fruit setting rate, the above substances are mixed and used, the effect is better.
1, gibberellin for historical reasons, the use of gibberellin (920) in the flowering period, if used properly, it is still possible. The usage is to spray 100 kg of water per gram of gibberellin. Experiences from various places have shown that the use of gibberellin in flowering has a shortcoming, that is, it starts to have more fruit, and it will consume too much nutrients in the tree, which is easy to exceed the load of the tree and cause a lot of fruit drop. Mainly in two aspects, the first is that gibberellin can promote the stigma elongation of flowers, which is conducive to pollination, which can increase the fruit setting rate. Secondly, gibberellin can promote the formation of seedless young fruit of jujube fruit. Most of the young fruit is this part of the seedless young fruit that cannot be developed for a long time).
In addition, the use of gibberellin for many times will also have two side effects: First, the jujube hanging of winter jujube has the characteristics of secondary growth. When the young fruit develops to the size of mung bean, the jujube hanging in it will continue to Front extension and growth. At this time, the use of gibberellin will also promote the faster growth of the branches and leaves, affecting the development of young fruit, causing a large number of young fruit to fall off! It is not advisable to use gibberellin more than twice, otherwise it will cause fruit drop. The more times you use it, the more you fall. Second, the use of gibberellin for many times after the young fruit will make the amount of jujube fruit worse, which will seriously affect the taste and commercial value of the winter jujube.
In order to overcome the shortcomings of gibberellin and prevent fruit drop, after the flowering period has promoted the use of gibberellin twice (920), it can be used once again to “protect the escort†to ensure that most of the jujube fruit has not fallen off.
2. Zaofengling is a fruit-fruiting technology for perfecting red dates. Since the early 1990s, we have successively developed the Zaofengling series of products. The research was expertly technically certified and reached the domestic leading level, and won the Science and Technology Progress Award. The products have been applied for demonstration in key jujube areas such as Hebei Province, Shandong and Tianjin for many years. The efficacy is stable and the masses have a good response.
The method of using Zaofengling in the flowering period: Spraying 1 kg of jujube Fengling No. 1 (special for flowering and young fruit period) on 50 kg of water, and using it 3 times, every interval of 5 to 7 days. Jujube 1 is not like gibberellin. There are many fruit drops. It promotes the moderate number of fruit set, but it has a particularly small number of young fruit, which guarantees the final fruit setting rate of winter jujube. Zaofengling No. 1 also has an insufficiency, that is, it seems that the fruit set is less, and people are not worried about it. Practice has proved that this concern is not necessary.
3. Mixing two or more kinds of regulators Because the jujube fruit is more difficult to sit than the common jujube, through recent years, there have been some new developments in the fruit-harvesting technology of promoting winter jujube, which is to regulate the growth of two or more plants. The mixture is used in combination with other substances, and the effect is much higher than that of other ones. If gibberellin is mixed with the current Zaofengling, it can ensure that the fruit is more in the early stage, the masses are satisfied, and the young fruit that has already been sitting can be prevented from falling off. These two kinds of regulators can complement each other and complement each other! The method is to use 1 gram of gibberellin plus 2 grams of jujube Fengling (flower-specific or middle-late special type) to spray 100 kilograms of whole tree, use 2 times, the third time only use Zhuofeng 1 and 2 Protect the fruit. From the current point of view, this method as long as the flower temperature is normal, on time, open the armor, the effect is relatively ideal, generally can achieve the fruit set requirements.
In recent years, we have applied Zaofengling No.1 and No.2, and adjusted its original formula to introduce Zaofengling No.5, also called “gibberellin companionâ€. When using this dosage form, it is also 2 The gibberellin partner (Zhuofengling No. 5) was directly opened with water, mixed with 1 g of gibberellin (using alcohol to open water), and then sprayed on 120 kg of water until the leaf dripping was limited.
When a regulator (such as jujube or gibberellin) is mixed with boron, it is best to use boric acid (borax is alkaline), mixed with urea, etc., and can also increase the efficacy. The specific spraying time should be selected in sunny and windless weather after 5 pm.
Fourth, during the flowering period, if you encounter high temperature and dry weather, it will affect pollination and fertilization. In order to prevent coke flower and improve air humidity, it is recommended to spray water during flowering. The number of water sprays depends on the degree of weather drought. It is sprayed 2 to 3 times in normal years and 3 to 5 times in severe drought years, with an interval of about two days. The water spray can be sprayed alone, and it can also play this role when it is sprayed with a regulator or a pesticide.
Spraying micro-fertilizers and plant growth regulators during flowering, spraying plant growth regulators, micro-fertilizers and other substances is a necessary means to promote fruit setting. Such as gibberellin (920), jujube spirit, borax, urea, etc., have a significant effect on improving the fruit setting rate, the above substances are mixed and used, the effect is better.
1, gibberellin for historical reasons, the use of gibberellin (920) in the flowering period, if used properly, it is still possible. The usage is to spray 100 kg of water per gram of gibberellin. Experiences from various places have shown that the use of gibberellin in flowering has a shortcoming, that is, it starts to have more fruit, and it will consume too much nutrients in the tree, which is easy to exceed the load of the tree and cause a lot of fruit drop. Mainly in two aspects, the first is that gibberellin can promote the stigma elongation of flowers, which is conducive to pollination, which can increase the fruit setting rate. Secondly, gibberellin can promote the formation of seedless young fruit of jujube fruit. Most of the young fruit is this part of the seedless young fruit that cannot be developed for a long time).
In addition, the use of gibberellin for many times will also have two side effects: First, the jujube hanging of winter jujube has the characteristics of secondary growth. When the young fruit develops to the size of mung bean, the jujube hanging in it will continue to Front extension and growth. At this time, the use of gibberellin will also promote the faster growth of the branches and leaves, affecting the development of young fruit, causing a large number of young fruit to fall off! It is not advisable to use gibberellin more than twice, otherwise it will cause fruit drop. The more times you use it, the more you fall. Second, the use of gibberellin for many times after the young fruit will make the amount of jujube fruit worse, which will seriously affect the taste and commercial value of the winter jujube.
In order to overcome the shortcomings of gibberellin and prevent fruit drop, after the flowering period has promoted the use of gibberellin twice (920), it can be used once again to “protect the escort†to ensure that most of the jujube fruit has not fallen off.
2. Zaofengling is a fruit-fruiting technology for perfecting red dates. Since the early 1990s, we have successively developed the Zaofengling series of products. The research was expertly technically certified and reached the domestic leading level, and won the Science and Technology Progress Award. The products have been applied for demonstration in key jujube areas such as Hebei Province, Shandong and Tianjin for many years. The efficacy is stable and the masses have a good response.
The method of using Zaofengling in the flowering period: Spraying 1 kg of jujube Fengling No. 1 (special for flowering and young fruit period) on 50 kg of water, and using it 3 times, every interval of 5 to 7 days. Jujube 1 is not like gibberellin. There are many fruit drops. It promotes the moderate number of fruit set, but it has a particularly small number of young fruit, which guarantees the final fruit setting rate of winter jujube. Zaofengling No. 1 also has an insufficiency, that is, it seems that the fruit set is less, and people are not worried about it. Practice has proved that this concern is not necessary.
3. Mixing two or more kinds of regulators Because the jujube fruit is more difficult to sit than the common jujube, through recent years, there have been some new developments in the fruit-harvesting technology of promoting winter jujube, which is to regulate the growth of two or more plants. The mixture is used in combination with other substances, and the effect is much higher than that of other ones. If gibberellin is mixed with the current Zaofengling, it can ensure that the fruit is more in the early stage, the masses are satisfied, and the young fruit that has already been sitting can be prevented from falling off. These two kinds of regulators can complement each other and complement each other! The method is to use 1 gram of gibberellin plus 2 grams of jujube Fengling (flower-specific or middle-late special type) to spray 100 kilograms of whole tree, use 2 times, the third time only use Zhuofeng 1 and 2 Protect the fruit. From the current point of view, this method as long as the flower temperature is normal, on time, open the armor, the effect is relatively ideal, generally can achieve the fruit set requirements.
In recent years, we have applied Zaofengling No.1 and No.2, and adjusted its original formula to introduce Zaofengling No.5, also called “gibberellin companionâ€. When using this dosage form, it is also 2 The gibberellin partner (Zhuofengling No. 5) was directly opened with water, mixed with 1 g of gibberellin (using alcohol to open water), and then sprayed on 120 kg of water until the leaf dripping was limited.
When a regulator (such as jujube or gibberellin) is mixed with boron, it is best to use boric acid (borax is alkaline), mixed with urea, etc., and can also increase the efficacy. The specific spraying time should be selected in sunny and windless weather after 5 pm.
Fourth, during the flowering period, if you encounter high temperature and dry weather, it will affect pollination and fertilization. In order to prevent coke flower and improve air humidity, it is recommended to spray water during flowering. The number of water sprays depends on the degree of weather drought. It is sprayed 2 to 3 times in normal years and 3 to 5 times in severe drought years, with an interval of about two days. The water spray can be sprayed alone, and it can also play this role when it is sprayed with a regulator or a pesticide.
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