What medicine does jujube take when it blooms and bears fruit?

1, gibberellin: spraying 10~ 15mg/L gibberellin +0.5% urea solution evenly on the whole tree at flowering stage can improve the fruit setting rate. Spraying gibberellin 10~ 15mg/L at the end of jujube flowering period or at the full flowering period can improve the fruit setting rate. Spraying 1~ 15mg/L gibberellin, 0.055~0.2% borax and 0.3%~0.4% urea mixed aqueous solution at the full flowering stage of winter jujube can effectively improve the fruit setting rate.

2,2,4-Dichlorophenoxyacetic acid: Spraying 5~ 10mg/L 2,4-Dichlorophenoxyacetic acid solution at the flowering stage of jujube trees can improve the fruit setting rate of Xinle jujube and Langzao jujube to varying degrees. The flower organs and leaves of winter jujube are particularly sensitive to 2,4-dichlorophenoxyacetic acid, which will burn the leaves and flowers if you are not careful, so try not to use them.

Spraying 30~60mg/L 2,4-dichlorophenoxyacetic acid on jujube and jujube after flowering can reduce fruit drop, promote the rapid expansion of young fruits and increase the weight of single fruit.

What medicine can jujube take during flowering?

3.NAA: Spraying NAA solution of 15~30mg/L on the whole jujube tree can improve the fruit-setting rate. When spraying more than 20mg/L, it will inhibit the expansion of young fruits or cause large-scale fruit drop. Spraying 1 50 ~ 80mg/l NAA or its sodium salt about 40 days and 25 days before jujube fruit harvesting has obvious windproof and blowing effect.

4. Indole ethanol and Indole butyric acid: At the end of flowering period, spraying 50mg/L Indole acetic acid and 30mg/L Indole butyric acid on the whole tree can obviously improve the fruit setting rate.

5. p-chlorophenoxyacetic acid: Spraying 20~50mg/L p-chlorophenoxyacetic acid solution on the whole tree at the end of full flowering period can obviously improve the fruit setting rate.

What medicine can jujube take during flowering?

6. Triacosanol: Spraying 1mg/L triacontanol twice at the initial flowering stage of jujube trees can improve the fruit setting rate; Spraying 0.5 ~ 1mg/L triacontanol 1 time during the physiological fruit drop period can reduce fruit drop and promote fruit expansion.

7. Zaofengling (mainly composed of gibberellin and 6- benzylaminopurine): Spraying Zaofengling 1 on the whole jujube tree during the young fruit period can not only prevent the young fruit from falling off, but also promote the rapid expansion of the young fruit. In the middle and late stage of development, the use of Zaofengling No.2 or Zaofengling No.5 has obvious fruit drop prevention effect. Winter jujube with normal fruit should be used with caution. If it is used too late or the concentration is too high, it may lead to fruit cracking.