Jujube tree cultivation technology to provide soil, apply water and fertilizer, pruning, turning the soil and weeding. Management of weeding and loosening the soil, seasonal moisture conservation, reasonable fertilizer.
A, cultivation techniques
1, provide soil
planting date palm, to select a soft soil, deep and high organic matter content of the land, and then use the hoe, the land will be turned over once, remove the weeds and stones, and then apply nitrogen, phosphorus, potassium and other composite fertilizers. Compound fertilizer.
2, apply water and fertilizer
In the process of maintenance of date palm, it is necessary to water every 5 days or so, so that the soil is dry and wet, and at the same time for date palm every 15 days to apply a diluted fertilizer to promote the growth of branches and leaves and fruits, pay attention to the need to stop fertilizing in winter.
3, pruning
Jujube trees have two pruning a year, respectively, spring and summer pruning, spring pruning is generally carried out in March-April, at this time the main pruning of the plant's weak branches and wilting branches, while the summer pruning in June-July, at this time for the jujube tree heavy pruning, pruning to be planted in the long branches, dense branches, as well as pests and diseases. Cut off all the branches.
4, turn the soil weed
In the spring and fall of each year, to date palm trees around the range of 2 meters for turning, pay attention to the process of deep turning, the need to remove weeds in the soil.
Two, management
1, weeding and loosening the soil, in order to preserve moisture
According to the status of weeds and soil moisture, timely weeding and drought, adhere to the soil moisture, date palm soil moisture is poor plots, but also the need for timely watering, the beginning of September until the harvest, every l0-20 days spraying of 300mg / L of calcium chloride water solution.
2, reasonable fertilizer, advance the tree
Jujube tree bottom fertilizer increased organic fertilizer, biofungus fertilizer, trace elements. Jujube trees need more fertilizer in the late stage, seize the fertilizer is necessary. Fertilizer varieties of phosphorus and potassium fertilizer with composite bio-fertilizer-based, generally 50% composite fertilizer, composite bio-fertilizer 40%, calcium fertilizer 10% ratio, the number of fertilizer varies from place to place, generally about 0.5 kg of urea per tree. Extra-root fertilizer can be sprayed 03% urea plus 05% of potassium phosphate.
Jujube morphology
Deciduous small trees, sparse shrubs, up to more than 10 meters; bark brown or gray-brown; there are long branches, short branches and non-budding twigs (i.e., the new branch) than the long branch is smooth, purplish-red or grayish-brown, zig-zag zigzag, with two leafy spines, the long spines can be up to 3 centimeters, straight, the short spines recurved, 4-6 mm; short branches of short thick spines, the short spines of the short spines are curved, 4-6 mm long, and the short spines of the short spines are curved. -Short branches short and thick, rectangular, emanating from old branches; current year's branchlets green, pendulous, solitary or in clusters of 2-7 on short branches.
Leaves papery, ovate, ovate-elliptic, or ovate-rectangular; 3-7 cm long, 1.5-4 cm wide, apical part obtuse or rounded, sparsely acute, aculeate, base slightly asymmetric, nearly rounded, margin crenate-serrate, dark green and glabrous above, light green and glabrous below, or sparsely hirsute along veins only. The leaves are very green above, glabrous or more or less sparsely hirsute only along the veins, with basal ternate veins; petiole 1-6 mm long, or up to 1 cm on long branches, glabrous or sparsely hirsute; stipular spines slender, often deciduous in later stages.