Apple flower management to catch six points

The method of rationally thinning flowers of apples is: in the inflorescence separation period before the apple flowers are not opened, according to the strength of the tree and the characteristics of the varieties, first one inflorescence is left at a pitch of 20-25 cm. When implementing the flower thinning, special attention should be paid to the quality and location of the flowers. Medium and short fruit branches should be selected as much as possible; the quality of long fruit branches and buds is poor, and should be kept as little or as little as possible; The fruit is generally not easy to rub with the branches and rust spots, and the effect of the earth's gravitation is high, the pile is high, the shape is positive, the rate of good fruit is high, and it is selected as much as possible; while the erect result on the back is flowering and fruit setting, the fruit is more horizontal and easy. The branches and the branches rub against each other. Such fruits have many rust spots and are not smooth. The shape of the fruit is also affected by gravity, and the rate of good fruit is low. It should be kept as little or as little as possible.

If the flowering period of the fruit tree is unstable or encounters frosty weather, the time for flower thinning and fruit thinning should be postponed; the flowering period is stable and the flower should be carried out as soon as possible.

During the flowering period of spraying boron (ie 50% flower opening), the whole tree sprays 0.3% borax + 1% honey water + 4% agricultural anti-120 (water agent) 1000-1200 times liquid spray, which can promote the germination, growth and lure of pollen tube. Bees increase the fruit setting rate, prevent mildew and prevent other diseases.

At the flowering stage, the branches, the auxiliary branches, the large branches, and the branches that are to be removed in the future, which are 15 to 20 cm in length and have a dry circumference of 15 to 20 cm, are stripped at the flowering stage and have a width of 0.3~ 0.5 cm, wrapped with paper after ring peeling, has a long-term control and promotes the formation of flower buds.

The anti-freezing of the flowers in April was fast and unstable, and frost often occurred. If the weather forecast has frost, active measures should be taken to prevent the danger of frost. If a frost hazard occurs, the fruit grower can spray the fulvic acid foliar fertilizer on the same day to relieve the frost damage.

Full pollination and fertilization should ensure that the apple tree is fully pollinated and fertilized. In addition to ensuring the allocation of pollination trees, spraying boricin and hormones, apples, pears, peaches, apricots, plums, cherries and other fruit trees are also advocated for wall bee pollination technology.

Wall bee 1 year and 1 generation, natural survival, strong fertility, no need to feed. More than 300 days in a year live in the tube nest, only live in the pollination activities outside the nest for more than 40 days, thus avoiding the contradiction between wall bee pollination and fruit tree fight drugs. Wall bee early spring activity, low temperature tolerance, high reproduction rate, small range of activity (the general wall bee's activity range is less than 60 meters), mainly based on collecting pollen, the speed of visiting flowers is fast, and the pollination effect is good. Its management is simple, as long as the nest tube and nest box are made well, the wall bee is put into the orchard at the right time, and the future things are all done by the wall bee himself. The use of wall bee pollination, low cost, small investment, generally 150 to 300 bees per acre orchard can effectively complete fruit tree pollination.

Timely cleaning up the pests and inferior fruits should be cleaned up in time for the pests and diseases that are born on the trees, because the long-term retention of these fruits in the trees will consume the nutrients of the trees and increase the number of fights.

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Geogrid

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