The planting direction of jujube
The direction of jujube planting not only directly affects the growth and development of jujube itself, but also affects the growth status of intercropping plants. The amount of light accumulated under the canopy of jujube trees planted in the north-south direction was greater than that under the east-west direction. At the same time, there is little difference in light time between the north and south sides of jujube trees planted in the north-south direction, but there is a great difference in the light time between the north and south sides of the jujube trees planted in the east-west direction. The difference of direction not only affects the time of receiving light, but also causes the difference of the amount of light received. From the needs of jujube planting itself, the north-south direction is the best.
In addition, the direction of jujube planting has a great influence on the intercropping plants, and the crops between the rows of jujube trees planted in the north-south direction are well exposed to light. Crops under the canopy are also exposed to some light, while those near the north side of the canopy in the east-west direction receive very little light. Therefore, whether using pure jujube orchard or jujube-grain intercropping, the north-south is the best.
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Peach Management in Cold shed before and after Spring Festival in Beijing-Tianjin area
The main results are as follows: 1 the cold shed peach in the buckle shed period, because the cold shed peach has no cold protection facilities, only rely on daylight temperature increase and greenhouse film heat preservation, so the temperature difference between day and night is large, so the suitable greenhouse period is about February 20, so the flowering period is March 25-31, and the peach ripening period is early June. Ripening 10-15 days earlier than open-field peach. Heating type cold shed peach shed every 350 square meters, install a heating machine in the center of the cold shed, burn wood or coal, the gas is discharged out of the shed through the chimney in the middle of the furnace, and the air is preheated through the interlayer of the furnace before passing through.
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The emergence, packing and Transportation of Jujube seedlings
Packaging and transport: after the seedling should be corrected in time, mainly to cut the injured roots, and to cut the secondary branches, leaving 1cm around, and then tie them into bundles according to a certain number. If the transport distance is greater, the roots should be dipped in mud immediately and packed with soaked bunches or straw bags. If several varieties of seedlings are packed and transported at the same time, a label indicating the variety, grade and number of plants should be bolted inside and outside the package. In the case of long-distance transportation, soaked straw or water straw should also be filled between the gaps of seedlings to prevent the roots from being dried by the wind.
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