The cultivation of fruit trees is the basis. The selection of suitable and superior varieties is the fundamental guarantee for the successful cultivation of fruit trees and the realization of high-quality, high-yield, and high-efficiency. Fruit tree cultivation is a high-intensity, capital- and technology-intensive fruit tree high-tech industry. It is the use of greenhouses, plastic greenhouses or other facilities to control fruit production under the conditions of artificial control of the growth and development of fruit trees. Under the protective ground conditions, artificial changes in the environmental patterns of normal growth and development of fruit trees will also affect the normal rhythm of fruit tree growth and development. Therefore, conservation cultivation of fruit trees has some special requirements for the tree species and varieties cultivated. In order to achieve the purpose of production, it is necessary to properly select and utilize the resources of excellent varieties suitable for cultivation in protected areas. Variety requirements 1. Wide adaptability to cultivation and strong weather resistance, especially high temperature resistance, high humidity, and strong photosynthetic efficiency under low light conditions. 2. Crown opening, easy to control, easy to plastic, suitable for dwarf close planting. 3. For the promotion of cultivation, it is required that sprouting, early flowering, and short fruit growth period; for delayed cultivation (mainly refers to grapes and peaches), it requires budding, late flowering, and long fruit growth period. 4. The fruit is big, fruit shape is correct, the fruit surface is smooth, easy to full color, red color brilliant; pulp hardness, high sugar content, excellent quality, resistance to storage and transportation. 5. Strong disease resistance. Protected cultivation of fruit trees According to incomplete statistics, currently there are 38 kinds of species cultivated in protected areas of fruit trees worldwide, including 24 species of evergreen fruit trees and 14 species of deciduous fruit trees. In the case of deciduous fruit trees, the status of various tree species by size of cultivated area is as follows: 1. Foreign strawberry, grape, peach, nectarine, sweet cherry, fig, persimmon, kiwi, plum, apricot, pomegranate, apple, pear, date. 2. Domestic strawberries, grapes, sweet cherries, Chinese cherries, nectarines, peaches, apricots, and plums. Cultivation mode The promotion of cultivation of cultivated fruit trees is a cultivation mode aimed at early maturation and early listing. It is the mainstream of cultivation of fruit trees in China, and guarantees the supply of fresh fruits in early spring and early summer. The maturity of the grape and peach in the solar greenhouse is generally 40 to 60 days earlier than that of the bare land, and the plastic greenhouse is 20 to 30 days ahead of schedule. Delayed cultivation of late-cultivated fruit trees is a cultivation mode aimed at prolonging fruit ripening, delaying harvesting, and improving fruit quality. It can produce high-quality fruit, save the storage cost of fresh fruit, increase the shelf life of fresh fruit, and reduce fruit weight. Cost, get a higher market spread. Use late-maturing varieties to delay harvesting. Wet rain cultivation in southern China is hot and rainy, and the air has high humidity. The fungal diseases of grapes are serious. Some places use drugs more than 20 times a year. The control effect is still unsatisfactory, which causes great difficulties in cultivation and management and limits the development of grapes. The use of a rain-fighting cultivation technique reduced the disease, thereby reducing the number of fights and improving the quality of the fruit. Disclaimer: Some articles in this website have been transferred from the Internet. If you are involved in third party legal rights, please inform this website. phone This 50m distance measuring meter is made of two parts: the laser distance outside unit and the sole part laser measure module. Great distance range is from 3cm to 50 meters with ±1.5mm high accuracy. Digital distance measuring device is quick and reliable measure with one hand pushing the button. It is designed for hand helding, very convenient to put in your jacket pocket or trouser pocket. 50M Laser Distance Measurer,Mini Laser Measurer, Laser Measure 50M,50M Laser Distance Meter Chengdu JRT Meter Technology Co., Ltd , https://www.accuracysensor.com
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