Grape spring tube pay attention to these points

[ Agricultural Products Network] Spring grape management points.

First, the work of germination is the key work to determine the quality of grapes .

1. Method: Determine the morning and evening of the germination according to the tree potential.

The tree is weak --- the result is 0.6 to 1 cm in thickness. It should be smear early (probably in mid-April), weaken the buds and leave the buds. The tree is strong - the result is more than 1 cm in thickness, and it is late (new shoots grow to 10 to 15 cm) to smear, and the buds are budded to leave weak buds.

2. Effect: Correct germination can reduce the size of the grapes and increase the yield.

Second, in addition to 30 cm above the surface of the germination, no leaves or leaves are kept to ensure the ventilation and light transmission in the lower part to prevent the occurrence of white rot and anthrax in the later stage.

Third, topping out to avoid nutrient consumption, so that nutrients return, improve the fruit set rate.

1. Time: 2 to 3 days before flowering (when the flower in the strongest tree in the ground is just opened), it will take a new strip when it is picked up early, and it will not reach the purpose of nutrient reflux.

2. Size: 4 to 7 leaves above the ear (to the normal size of the leaves).

Fourth, the tip of the scorpion spike saves nutrition and improves the fruit setting rate.

1. Time: Start around 1 week before flowering.

2. Size: 1/4 to 1/5 of the length of the stalk, and lick the shoulder.

V. Pest Control

1. Qingyuan medicine: Before the germination of the grapes, spray 3 to 5 waves of stone sulfur mixture or octalin 600 times solution.

2. Second pass agent, separation of inflorescence (early May): two heavy anti-insect blind stinkbug a disease i.e., cobs and tobacco thrips brown blight. Spraying propyl zinc + high chloride methyl salt + imidacloprid or three generations + leaf cool, anti-disease and zinc treatment, reduce the occurrence of large and small particles.