Transformation Technology of barren Jujube Orchard

1 the broken board is deeply turned over to eliminate famine and tillers.

Deep ploughing can remove weeds, remove excess roots and tillers, and increase soil permeability and the ability to store water and melt fertilizer. And can turn the eggs and larvae of pests to the surface to die or pick out the table to kill.

Deep ploughing should be carried out when the soil is suitable for ploughing. Too dry or too wet is easy to form bumps and break the structure. Deep flip should also master the depth of adaptation, the far crown area should be deep, up to about 20 cm, and the near crown area should be shallow, about 10 cm. So as not to hurt the roots too much and affect the tree. Deep turning creates good conditions for root re-growth, because jujube horizontal roots are well developed, strong outward extension and regeneration ability, hurt part of the roots, but also sprout more uneven roots.

(2) overall fertilizer increase depends on moisture watering.

Due to the continuous release of wasteland in the barren jujube garden, jujube trees grow side by side with weeds and root tillers, the nutrient loss is serious, and the tree body is weak. therefore, topdressing in time after eliminating wasteland and removing tillers is the key to cultivate tree potential.

Fertilizer should grasp the principle of early and complete, because jujube is a tree species in advance of melting and fertilizing period, after topdressing and decomposing in autumn, making use of the functional period of leaves to make nutrients stored in the tree body, which can be used for flowering and fruit setting in the following year. The research shows that the effect of fertilizing in autumn and spring is often better than that of topdressing in spring.

Because there are many kinds of weeds and tillers in the barren jujube orchard, all kinds of hidden nutrients in the soil are scattered, resulting in poor soil, so we should master the comprehensive supplement of nitrogen, phosphorus and potassium in fertilization, combine with organic and inorganic fertilizer, and mix with appropriate amount of micro-fertilizer. The way of fertilization is applied in radioactive ditch, the coverage of fertilizer is large, and the effect is good.

After fertilization, soil moisture should be watered and water should be used to melt fertilizer, so as to avoid the physiological drought phenomenon of excessive concentration of soil culture solution, backflow of root water and fertilizing trees due to the lack of soil moisture.

(3) thinning, pruning and cultivating tree potential.

Due to the continuous release of wasteland and disordered tree shape, the inferior branches in the chamber consume nutrients due to improper position, such as breeding overgrown branches and whorled branches, useless disease and insect branches and dry withered branches, fine oblique branches overlapping branches, overdense endophytic branches and crossed branches, and drooping branches and senescent branches. These branches not only affect ventilation and light transmission, but also have no economic yield, and preservation is harmful but not beneficial, so they should be thinned or pruned and cultured, so that the effective fruiting branches of the whole jujube tree should be increased, and the amount of auxiliary branches should be increased, so as to enhance the tree potential and improve the fruiting ability.

4 timely prevention and control of diseases and insect pests

The wild jujube orchard has more species and serious harm than the general jujube orchard because the diseases and insect pests are out of control, arbitrary breeding and iterative reproduction, so it is difficult to control to a certain extent. Therefore, the prevention and control of diseases and insect pests in barren jujube orchard should be combined with key control and comprehensive control. In addition to the treatment of one of the major diseases and insect pests at the same time other diseases and insect pests, strive not to miss every stage of prevention and control, so that it can be timely and thorough. As long as the jujube trees in the fruiting period control their diseases and insect pests, they will get more than half of the harvest.

5. Open armour and promote fruit.

After 1-2 years of cultivation, the tree potential of the barren jujube garden will be enhanced under the comprehensive action of various measures. With the ability to bear fruit, opening armour has become the key to the flowering and fruiting of jujube trees. The correct method should be taken to open the armour at the right time, which will make the original empty tree full of fruit and receive the ideal yield.