Facilities The peach tree is about to enter the post-emergent management stage. This period is a critical period for the management of facilities peach trees.
First, temperature management. The requirements for temperature during the various periods after the germination of the peach plant are different and should be accurately mastered. The specific situation is shown in the table below.
Second, plastic film covering and withdraw film. Covering the mulch before flowering is the main work of humidity management. The time for covering the mulch is before the peach blossoms. The main purpose is to reduce the air humidity in the shed, which is beneficial to peach blossom. The black and white film can be used for the mulch film, and the effect is quite different. The difference is that the black film cover does not produce weeds. The withdrawal time is a hard time. In the peach hard core after the need to fertilize when watering the film, after removing the film can not be covered.
Third, pollination. From the beginning of the flowering period, with the open flowers of the feather duster, the pollen in the stamen will spread to the air due to the air drying. The pollen will fall on the stigma of the pistil and be pollinated once every day until the flower is cut.
Fourth, thinning fruit. The key to fruit thinning is to determine the amount of fruit left, leaving large quantities of fruit, high yields, poor quality, and low prices. When fruit shrubs are harvested, the amount of fruit in each branch is approximately 0.5 kg (when mature). Thinning fruit, small fruit, malformed fruit, overturning fruit, pest and disease fruit should be removed when the fruit is thinned.
Fifth, tree management. Tree management begins from the germination stage of peach trees, mainly by wiping buds and controlling erect branches on the back. The wiping buds are to remove the strong buds that germinate on the back and avoid prematurely growing strong branches. When the branches grow to a certain length, they must control the upright branches on the back in order to balance the growth potential on the back of the canopy. The method adopted is to twist the tip of the upright branch of the back, change its growth direction, so that the growth potential is moderated, and the weak back under the strong back is avoided. Or pick up the branches that have grown too strong (cut the branches 10 cm away) to achieve the purpose of controlling the growth of the back.
Six, fertilization. The facilities will be topdressed after the hard core period. Mainly to topdressing chemical fertilizers, mainly nitrogen, phosphorus and potassium fertilizers. The amount of fertilizer applied was 2.5% of the pre-production of the peach shed. The method is to open the ditch between the rows of trees. The ditch depth is 10cm. After the application, the soil is covered and watered.
Seven, prevention and control of pests and diseases. There are the following pests and diseases in the greenhouse.
aphid. The best period of prevention and treatment is the germination period of peach trees, which can be sprayed with 10% imidacloprid 3000 times to control.
Sang Baixi. After the Xiehua, 800 times liquid wax was sprayed during the hatching period of the mulberry egg.
Snails, cockroaches. At the time of occurrence, each of the peach sheds will house 3 to 5 adult ducks for food, which will not affect the peach fruit and the tree body.
Gray mold. The occurrence of gray mold is caused by excessive humidity in the shed. When it occurs, the air humidity in the shed can be reduced. At the same time, it can be sprayed with a 600% solution of Green Treasure (bio-pesticides) 600 times.
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