Plant growth regulator, used well, promotes fruit set, expands and increases yield. If you don't use it well, you know the consequences??? ......
Those who have the ability to play a good regulator are estimated to have entered the ranks of "masters" in the field of planting...
Three prerequisites for playing a good regulator:
1) Understand the principle
2) Decide what active ingredient to use according to the characteristics of the crop
3) How much PPM to use
True combat experts have been able to figure out their own formulas and concentrations from several repeated experiments. A solution for a crop and a period of time must be scientifically tested and strictly screened, otherwise it will not be achieved quickly, and even side effects will occur. Guoguang started from the regulator and achieved the current scale of listed companies, and the real hardships are estimated to be only known to them. If you happen to have such a reliable teacher around you, that is your luck, and you can directly use his research results. Please have a meal, you deserve it. What the? You don't know how many scammers there are? Then you buy a treasure to use to try it?。。。
Look @ Chunfeng unintentional teacher also advocates the use of mature products, large factory products, according to the instructions, with broken can also find them responsible.
The following information is for learning only, do not try at will... Enhance your knowledge so that when you interact with experts, don't be fooled too badly.
Indoleacetic acid, 2,4-D, naphthaleneacetic acid, gibberellin, cytokinin, Bijiu and other inhibitors to promote fruit set, expansion, and achieve the purpose of increasing yield and improving quality. However, when a certain agent is used alone, it is often necessary to improve the fruit set at the same time, resulting in side effects such as hollow fruit, cracked fruit, and hardening of fruit stems, which cannot meet the requirements of improving quality. A good formulation requires a mixture of two or more plant growth regulators, and here are some compounding ideas:
(1) Sodium compound nitrophenol + sodium α-naphthaleneacetate
Its preparation is generally a water agent or soluble powder, by high-purity α - sodium naphthalene acetate compound and sodium compound nitrophenolate compound, commonly on the market is 2.85% water agent (1.8: 1.05), these two ingredients can increase each other, broaden the efficacy, reduce the concentration of use, both have the effect of sodium complex nitrophenol excipient, but also has the effect of α - sodium naphthalene acetate rooting, puffing effect, is a broad-spectrum plant growth regulator, due to the rapid action of its preparation, flower preservation and fruit preservation performance is excellent, It has become a relatively wide range of plant growth regulator varieties.
(2) Gibberellin (GA3) + 6-BA
Formulations are generally emulsions, solutionables or applicators. The market products are 3.6%, 3.8% emulsion, 3.6% liquid, 2.7% paste. It can be absorbed by the stems, leaves and flowers of the plant, and then transmitted to the active parts of the meristem, which promotes fruit set, promotes the five ridges of apples, and has a weight-gaining effect. This blend has been applied to the Marshal's Red Star, New Red Star, Short-branched Red Star, Red Fuji and Green Banana Apple, usually spraying the flowers once during the full flowering period and spraying the young fruits every 15-20 days. It can also be used on fruit trees such as kiwifruit, grapes, bananas, etc.
(3) Choline chloride + naphthaleneacetic acid (sodium)
Its formulation is generally a soluble powder or a water agent. The market products have 25% water agent, mainly used in potatoes, sweet potatoes, radishes, onions, ginseng and other root and tubers. This formula is a controlling agent type, which improves photosynthesis efficiency, promotes the transport of organic matter by inhibiting photorespiration of C3 plants, and transports photosynthetic products to the tubers as much as possible to increase the yield of the tubers.
(4) Gibberellin (GA3) + CPPU
Its formulation is generally emulsion or solutionable agent. As an upgraded product with 0.1% chloropyrurea solution, the effect of adding gibberellin is to prevent side effects such as spike shaft hardening and uneven size of young fruits. Generally, the concentration of gibberellin is 10 ppm, and the concentration of chloropyramide is adjusted according to the different crops treated, and the range of use is 5-20 ppm. If this mixture is applied on Jufeng grapes, it is best to choose the concentration of gibberellin 10ppm + CPPU5ppm, which can not only improve the fruit set rate, but also promote the expansion of young fruits, and the weight of single fruit is significantly increased.
(5) Gibberellin (GA3) + (class) auxin
Its formulation is generally a solutionable agent or a soluble powder. Auxins such as α- naphthaleneacetic acid, 2,4-D, p-chlorophenoxyacetic acid, β- naphthoacetic acid, etc. in tomatoes, mangoes, pineapples, bananas and other crops when applied, in the process of improving fruit set rate at the same time also produce a certain number of hollow fruits, if used with gibberellin, it greatly reduces the proportion of hollow fruits, significantly improve the quality.
(6) Gibberellin + auxin + 6-BA
Its preparations are mostly pastes. The ratio of 0.3% gibberellin + 0.005% indoleacetic acid + 0.05% 6-BA, with lanolin ointment of this blend treated with the young fruit stem of the new pear, the single fruit weight can be increased by 28.6%, and the harvest is 7-8 days early.
(7) Chlorphyllum + choline chloride
Its preparations are mostly water agents. The application mechanism is mainly to improve the fruit set rate by inhibiting the growth of new branches. For example, the 0.1% choline chloride + 0.05% chlorphyrin treated grapes on the market can be used when the new branches and leaves are about 6-10 leaves, which can significantly improve the fruit set. Its use concentration is related to the fertility of the field, the plant grows vigorously, the use concentration is higher, the growth medium concentration is low, and the weak growth is not used as much as possible.
(8) Sodium compound nitrophenol + paclobutrazol
Its formulations are mostly wettable powders or suspension agents. It is mainly used for the control of fruit trees and the expansion of fruits, and is also a popular plant growth regulator for fruit trees in recent years, and its application on fruit trees is in the ascendant.
(9) Thiobenzolylline
Thiobenzolong is mainly used as a cotton leaf removal agent, but it is also a good cytokinin at low concentrations, and according to some literature, its biological activity in promoting fruit set and leaf greening is higher than 6-BA. Its formulation is a wettable powder or a solutionable agent. The market products are 0.1% thiabenronco solution, 0.1% thiabenron wettable powder, used in zucchini, melon, grape, cucumber, the concentration range is 2-4ppm, can be sprayed fruit spike or spray use, can promote fruit set, prolong leaf aging, but also induce callus differentiation to grow young buds.
(10) DA-6 + retardant
Its preparation can be water agent, soluble powder, wettable powder and so on. The general retardant is chlorhenin, acetylamine, choline chloride, paclobutrazol or one or more of the enozole, which is a controlled fruit set agent and can be used on tomatoes, grapes, fruit trees, and tubers. The concentration of DA-6 is in the range of 5-15ppm, and the amount of retardant varies greatly according to the type. The period of use is generally controlled during the alternating period of vegetative growth and reproductive growth, in order to inhibit vegetative growth and promote reproductive growth, promote fruit set and increase yield.
(11) Chlorphyllin + 4-Chlorophenoxyacetic acid (sodium, potassium)
Its preparations are mostly water-based or soluble powders, and the main application object is tomato. During the alternating period of vegetative and reproductive growth (about three days before flowering), the whole tomato was sprayed with chloranolin 150-200 ppm + 25-25 ppm of chlorophenoxyacetic acid, which could significantly increase fruit set and yield.
(12) Sodium compound nitrophenol + 2,4-D
Its formulation can be aqueous or soluble powder, which is specially developed for banana elongation. When the banana bud breaks, spraying the fruit with an appropriate concentration of solution can be beneficial to the growth of the fruit finger, generally controlling the concentration of 2,4-D 5-10 ppm. Because 2,4-D is also a herbicide, the medicinal properties are strong, sensitive to temperature, and the concentration cannot be increased arbitrarily.
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