Fruit tree cultivation new technology

Fruit tree facility cultivation is the use of solar greenhouses, plastic greenhouses and other facilities to artificially create a controlled and controlled residential environment for fruit trees in order to achieve the artificial control of fruit production targets.

I. Selection of facility types Promote cultivation of facilities The varieties with short natural dormancy period, low required coldness and strong self-cultivation ability should be selected for early or ultra-early protection of production; delaying late-maturing cultivation to select long natural dormancy period and large amount of cold, Good late-maturing varieties.

Second, the establishment of gardening technology to increase the planting density, the general spacing of 12 meters; implementation of "cluster planting" cultivation; widely used ridge planting system, increase the application of organic fertilizer.

Third, promote long-push flowers to take before the promotion of control technology. From the time of planting to the mid-July, it is mainly to take measures to expand the crown, 0.3% nitrogen fertilizer outside the root, sufficient underground fertilizer and water, etc.; in mid-July to the defoliation stage to promote the flowering stage, it mainly adopts open branch angle, leaf spraying 0.3% phosphoric acid dihydrogen, water control nitrogen, chemical flowering (200 to 300 times paclobutrazol) and other technical measures.

4. Manually breaking the dormancy can be achieved by manually concentrating pre-cooling to break the dormancy, and the grapes can be broken by using lime nitrogen.

Fifth, environmental regulation to improve the ground temperature earlier, in the 30 to 40 days before warming ridges and ground cover black mulch; using slow heating method, flowering to maintain appropriate temperature and dry environment, the temperature during the day at 18 ~ 22 °C, the night temperature is not low At 10°C, during the other days, the daytime temperature is not higher than 30°C; the air is relatively moderate at 50%-60%; in case of continuous rainy weather, artificial light may be applied.

Sixth, flower and fruit management flowering artificial pollination in vivo or planting bees, wall bees pollination, spraying 0.3% borax; control the new shoot long, about 10 cm topping; thinning and thinning fruit to improve quality; early coloring period , Implement adversity management, increase the temperature difference between day and night, and increase sugar accumulation.

Seven, CO2 gas fertilizer technology in the new shoot speed long-term, fruit expansion, hard nuclear phase, coloring period of CO2 fertilization, acid-base reaction can be used to control the concentration of 800 mg / liter, 2 hours per day, overcast Stopping fertilization on days can effectively improve the fruit quality of the fruit trees in the facility.

VIII. Post-harvest update and prevention of alternate year results. After the fruit is harvested, selective retrieving is performed to perform the updated pruning to prevent biennial results; the renewed pruning must be combined with the underground rooting treatment.

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