Early-spring transplantation and seedling protection method for facility-grafted jujube seedlings

Abstract

The invention discloses an early-spring transplantation and seedling protection method for facility-grafted jujube seedlings and belongs to the technical field of plant seedling cultivation. The method comprises the following steps: disinfection and sterilization, root system awaking, root and head protecting, planting pit fertilizing, seedling planting and temperature control management. Compared with the prior art, the survival rate of the seedlings treated with the method is increased by 15.38 percent when compared with that of seedlings treated with the conventional planting seedling protection technology, and jujube trees can germinate 5-10 days in advance. The jujube seedlings are transplanted before the germination stage, and various technical measures are combined for seedling protection. The germination rate of the jujube seedlings is advanced and promoted, and the survival rate of the jujube seedlings is ensured and increased. The established practice that the survival rate is too low due to untimely jujube tree transplantation in spring is broken down, and the method lays a foundation for thriving of facility early-spring jujube seedlings. The method can be widely applied to planting seedling protection of seedlings of fruit trees and woods.

Description

technical field [0001] The invention belongs to the technical field of plant seedling cultivation, and relates to the technique of transplanting and preserving seedlings of grafted tree seedlings, in particular to a method for transplanting and preserving seedlings of grafted jujube seedlings in early spring. Background technique [0002] Traditional jujube seedling transplantation often causes a large number of seedlings to lose water and damage, resulting in low survival rate, dead seedlings, lack of seedlings, and unhealthy growth after planting. With the accumulation of practical experience and the development of modern agricultural science and technology, the method of transplanting jujube seedlings is becoming more and more mature. [0003] The general elements of existing jujube seedling transplantation technology include: (1) choose suitable soil, grow best on neutral, acidic soil with sufficient light, fertile soil, deep soil layer, good drainage, and avoid heavy dr...

AI Technical Summary

Problems solved by technology

If possible, cover 80-100cm around the tree tray 2 Plastic film to store heat and moisture, increase ground temperature, and promote root healing; ⑼ Reasonably set the dryness. After seedlings are raised, it is necessary to set the dryness in time and cut off all secondary branches to reduce the evaporation of water in the tree and the consumption of nutrients. The dry height depends on the irrigation conditions. If the watering conditions are good, the fixed dry height is 60-70cm; if the watering conditions are average, the fixed dry height is 40-50cm; if the watering conditions are poor, the fixed dry height is 20-30cm, and the cut must be smooth. Slightly inclined, the cut is generally about 1cm away from the bud position, and the cut that is too large should be sealed with oil or wax; ⑽Take care management measures in a timely manner, strengthen the management of newly planted seedlings, loosen the soil and weed in time, eliminate weeds and Save nutrients, stimulate the germination of new roots, and enhance the drought resistance of the tree. The management of saplings in the year of planting is divided into two periods: the early stage and the late stage. The early stage management of saplings is timely loosening the soil, weeding, draining water, drought resistance, wiping buds, and topping to promote the recovery of seedlings. Vigorous growth, post-management should control fertilizer and water, rational pruning, control the extension of new shoots, adjust tree nutrition, reduce diseases, promote continuous thickening and lignification of trunks, and create good conditions for young trees to survive winter safely; Jujube trees germinate late, drop leaves early, have sparse branches, and have a short annual growth period. They can be reasonably interplanted with dwarf crops such as beans and peanuts. Plowing instead of caressing is very beneficial to the growth of young trees. benefit, but you must leave enough tree trays, about 100-150cm, if the tree trays are small, the intercropping crops and jujube seedlings will compete for water, and the growth of jujube seedlings that have not fully recovered will be affected due to their weak absorption function. Poor ventilation and light transmission can easily cause stuffy seedlings, which is not conducive to the survival of seedlings

[0004] The existing transplanting technology of jujube seedlings requires transplanting in the germination period in spring to increase the survival rate. At this time, the sap flows, the tree begins to grow, and the restoration and regeneration of the injured root system will require a lot of water and nutrients, which requires underground nutrition and water transportation. However, when transplanting, a small amount of soil and miscellaneous fertilizers are applied in order not to burn the root system. In addition, the root system of the jujube tree is less, so that the demand for water and nutrients for the normal growth and recovery of the jujube tree is greater than the supply of the jujube tree root. However, jujube seedlings lack nutrients during the bud opening period, and phenomena such as seedling death, bud withering, and unhealthy bud growth occur. Therefore, although the existing methods have improved the possibility of survival during the transplanting period, it will lead to subsequent growth of jujube trees. Underdeveloped phenomena occur