Chlorpyrifos, also known as pyridoxine, pyridoxol, pyridone, and urea actin, is a broad-spectrum, multi-purpose plant growth regulator with cytokinin activity that promotes cell division, differentiation, and expansion. Organogenesis, protein synthesis. So what are the effects and effects of clopidogrel? Which crops are suitable for clopidogrel? What are the methods of using clopidogrel? What are the precautions for the use of clopidogrel?
Chlorpyrifos efficacy and effect
Chlorpyrifos has a significant retarding effect on the senescence of isolated leaves of rice. The leaf color is deepened, the green-keeping effect is better than that of sputum cytokinin, and the time is long. The endogenous ethylene dose is lower than that of the drug-free control. It can improve photosynthesis, enhance stress resistance and delay aging effect, especially promote the differentiation of flower buds after treatment of melons and fruits, prevent physiological fruit drop from being extremely significant, increase the fruit setting rate, and make the fruit swollen visual effect obvious.
A large number of experiments have shown that it has excellent effects on kiwi, grape, watermelon, navel orange, Wenzhou tangerine, pear, apple and lychee, and can increase the yield by 10%~50%. Mixing with gibberellin solves the difficulty of keeping parents in the process of producing hybrids, poor seed purity and high cost.
Chlorpyrifos for crops and methods of use
(1) Expanding fruit and improving quality
Kiwi
20~25d after the flowering, use 1% of the chemical solution 5~20ml and add 1kg of water (that is, the concentration is 5~20mg/L), and impregnate the young fruit once to enlarge the fruit.
枇æ·
Soak the young fruit at a concentration of 10~20mg/L. When the fruit is inflated, the canopy is sprayed 2~3 times, and the concentration of 500mg/L gibberellin plus 30mg/L of pyridonia can effectively promote the late growth and expansion of the fruit, improve the quality of the fruit, and mature early.
grape
Using 0.1% drug solution 5~15ml plus water 1kg (ie concentration 5~15mg/L), the young fruit ear is immersed in 10~15d after Xiehua, which can enlarge the fruit and increase the soluble solid content.
Seedless grape
Choose robust young vines, use gibberellin 50mg/L immersion flower 3d and 10d gibberellin 50mg/L plus piracetam 100mg/L twice in the first 3 days of flowering, which can significantly increase the single Grain weight and single ear weight. After 10 days of flowering, the young fruit was immersed in 10~20mg/L of pyridoxine, which could significantly increase the fruit.
Peach
30 days after flowering, the young fruit is sprayed with a concentration of 20mg/L, which can enlarge the fruit, promote coloration and improve quality.
(2) Increase the fruit set rate and increase production
Kiwi
20~25d after the flowering, use 1% of the drug solution 5~20ml and add 1kg of water (that is, the concentration is 5~20mg/L), and impregnate the young fruit once, which can increase the weight of single fruit and increase the yield.
Tangerine
Use 0.1% liquid 5~20ml plus water 1kg (ie concentration 5~20mg/L) to apply the fruit stalks 3~7d after flowering and 25~35d after flowering, or use 0.1% ethanol Liquid 5~10ml plus 4% gibberellin EC 1.25ml plus water 1kg, the application period, the same method as before, can increase the rate of sitting and avoid physiological drop.
grape
Immerse the young ear with 10% 15ml of 0.1% liquid (5~15mg) and 10~15mg after Xiehua, which can increase the fruit setting rate and increase the yield.
watermelon
On the day of flowering or the day before, the fruit stalk should be coated with 0.1% liquid 30~50ml plus water 1kg (ie concentration 30~50mg/L), or sprayed on the ovary of pollinating female flowers, which can increase the rate of sitting, including Sugar content, increase production.
cucumber
In the flowering period, when the flowering period is low, the rain is insufficient, and the flowering and fertilization is bad, on the day of flowering or the day before, the melon handle is coated with 50 ml of 0.1 ml of liquid and 1 kg of water (ie, the concentration is 50 mg/L), which can increase the rate of sitting and increase the yield.
melon
Before the flowering, the fruit stalk was treated with 0.1% liquid solution (10mg/L), which can significantly increase the fruit setting rate of melon, increase the sugar content of melon, improve the quality and increase the yield.
pear
Spraying 0.1% liquid solution with 100~150 times liquid during the full bloom period can improve the fruit setting rate, improve the quality and increase the yield.
potato
After 70 days of seeding, spraying with a concentration of 100 mg/L can increase the yield.
Rice
At the heading stage, the concentration of 5~10mg/L can be used to increase the rate of polished rice, increase the weight of 1000 grains, and increase the yield.
peanut
From the lower needle period to the pod-forming period, spraying at a concentration of 1~5mg/L can increase the fruit filling rate and increase the yield.
Wheat, barley
At the booting stage, the concentration of 5~10mg/L foliar spray can promote the fullness of the grain and increase the yield.
Soybean, kidney bean
From the initial flowering period to the full flowering period, the concentration of 1~5mg/L foliar spray can reduce the pods, increase the number of 3 fruits, promote the fullness of soybean fruit and increase the yield.
(3) Preservation
Leafy vegetables
It can prevent chlorophyll degradation and prolong the shelf life of fresh products.
(4) Promote callus growth
tobacco
Spraying with 10 mg/L chlorpyrifos page promotes callus growth.
Chloropyrazine use precautions
(1) The concentration of grapes used is too high, which tends to reduce the content of soluble solids, increase acidity, slow down coloration, and delay maturity.
(2) The use of old, weak, diseased plants or weak branches of fruits and vegetables is not significant. In order to ensure the nutrients needed for fruit enlargement, the fruits and vegetables should be properly used, and the amount of fruits should not be excessive.
(3) Chlorpyrifos is used as a fruit set, mainly for flowering and fruit treatment, and should be used with caution in melon and watermelon, especially when the concentration is high, it is easy to produce melon, bitter taste, and late split melon.
(4) Chlorpyrifos is mixed with gibberellin or auxin, and its effect is better than single use, but it must be carried out under the guidance of a professional or after the test and demonstration, and should not be used arbitrarily.
(5) Re-spraying in case of rain within 12 hours after treatment.
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