Basic characteristics of the 1st palm tree
Trees of palms, such as trees of up to 5 to 10 metres, with silver and white twigs and brown twigs, sometimes with thorns. Its blades are elliptical or narrow in shape, ranging from 4 to 8 centimetres in length, with sharp or blunt pretenses, and its base in broad wedge, with silver-white scales on both sides. Flowers usually have one to three clusters in the lower armpits of a small branch, which are swarms of bells, white outside and yellow inside, with a lovely fragrance. The fruit is elliptical, approximately 1 cm in diameter and becomes yellow when mature. The date-palm period is usually around june, while the fruit matures in october。
The sand-trees enjoy abundant sunlight, which is extremely cold and resistant to drought and poor soil conditions, and the requirements for the soil are not stringent. However, it is not suitable to grow in heavy clay. In addition, sand-trees have excellent salin resistance, especially to sulphate, but relatively weak resistance to chloride. In sulfate soil, date trees can grow well as long as the total salinity is below 1. 5%. On the chlorinated sulfate soil, the whole salt quantity is below 0. 6 per cent for its growth. In the case of sulphate chloride salts, date trees cannot grow normally when the total salt quantity exceeds 0. 4 per cent。
02 conservation elements
Implant and manure management
The palm trees, because of their well-developed roots, are more resistant to migration, even if they are larger in size. Replanting is appropriate before the onset of the first spring or after the fall of the leaves at the end of the autumn, with care to maintain the appropriate root band. At the spring shift, shallow planting is recommended and at the end of the autumn it should be duly deep. For palm trees planted at the end of the autumn, some of the topsoil of the pit is to be dug in the early spring, thereby contributing to the warming of the earth。
The requirements for water fattening are not stringent, but in gardening, in order to promote its rapid growth and preserve the beauty of the tree, it is recommended that the management of water fattening be strengthened at an early stage of planting, followed by extensive management. In fertilizing, it is possible to choose decomposed or dry chicken dung as base fertilizer to be applied during planting. Since then, a combination of freezing water and another application of farm fat at the end of the autumn is sufficient。
The first year after planting needs special attention for the water needs of palm trees. In order to ensure survival and accelerate the restoration of tree positions, water should be poured out once a month, in addition to the first three waters. Since the second year, frozen water has been frozen and unfrozen in late autumn and early spring, respectively, while natural precipitation is the main source of growth for the rest of the year。
Motion point
The mowing of sand-trees should take place between winter and early spring. For the plastic trim of the larvae, the key is to build the basic form of the date tree by choosing the main branches at the predefined dry height, which should be distributed evenly and in different directions. In the case of long branches during growth, they shall be removed from their base in a timely manner. In winter, the main branches will be briefly cut in order to adjust the distribution and growth of the new branches and to cut out the overlapping, long, dead, infested and useless branches。
In addition, care needs to be taken to maintain the robustness of the trunk extension branches, to remove the branches that may create competition in a timely manner and to strengthen the fine management of the side branches and of the inner corks, thus ensuring that the palm trees are splattered and stymied。
[reproduction mode]
The breeding of date palms can be carried out by embroidery or sowing。
Implantation
A strong, disease-free and disease-free date-planting plant is selected from which a year-long branch with a high degree of woodification and full sprouts is cut off. The length of the plug is controlled by approximately 15 centimetres, with the lower end cut to the horse's feet and the upper end kept flat. Plumbing may take place in the spring or autumn, and should take place sooner rather than later in the spring, usually before the aberration begins; and in the autumn before the soil freeze. Before emits, a suitable quantity of abt can be taken to facilitate rooting. Plugs are then inserted into the soil at a depth of about 8 cm and are immediately fully watered to ensure close contact with the soil. When water is watered, the roofs are constructed in a timely manner to keep the temperature and humidity, usually after approximately 30 days of careful maintenance, so that the stem can take root。
Planting seedlings
The fruit of the date is usually harvested in late october. In order to ensure the quality of seeds, we should choose a good single plant of age, disease-free pests and full fruit as a parent tree. The fruits of the harvest need to be laid in dry air in order to prevent mold. When the fruit is dried, the meat is removed by crushing and pure seeds are stored in clean bags. The planting of seedlings takes place mostly in the spring and seeds need to be sprung before seeding occurs。
[pest control ]
Pests that may be faced by date palms include vermin, cyanide and cyanide. For fertilized fertilizers, 25 per cent of the amphibians can be killed with a dispersant of 4,000 times the fluid; for saplings, 25 per cent of lice humid particles can be sprayed with 1,000 times the fluid or 48 per cent of the larvae cream; and for larvae, the larvae of spring feet can be sprayed with 20 per cent of the vermin suspension of 7,000 times the fluid。
In addition, date palms may also be threatened with brown spots. Small dots of yellow or black are often visible on the symptoms. A range of measures are needed to combat lignoma. First, the management of water fertilizers should be strengthened to ensure that palm trees are robust and increase their resilience. Second, regular cutting of branches, keeping the tree canopy luminous and reducing the likelihood of disease. Once the symptoms of lignoma are detected, the agent should be sprayed immediately. The further development of the condition can be effectively controlled by an option of 50 per cent of the estincian zinc, 300 to 500 times the fluid, or 75 per cent of the bacteria, 600 to 800 times the fluid, sprayed every 10 days, three to four times。
