Selection of seed: picking fruit on a dry, tree-to-tree plant, then extracting the seed and then spreading it after it swells. 2. Cultivation of seedlings: the nursery beds should be selected for a permutation of water with light feet, once they are well-soiled, and basic tasks such as manure management, pest control and weeding and pine soil should be strengthened during the nursery period. 3. Fertilizer management: cultivated fermented cow and horse dung are used as base manure and water is used depending on soil conditions。
I. Selected seeding
The breeding of soft dates is generally done by sowing. When the fruit matures, it is harvested on a dry, tree-shaped plant, and the fruit is laid dry in a cool and dry place, the seed is removed and washed and kept in clean bags. The seeds were immersed in warm water at 40°c for two days in late march of the following year, and the seeds swelled and then planted。
Ii. Employment
Slender beds should be selected in areas where there is sufficient sunlight and well drained, seeded to cover 0. 5 centimetres of soil, water permeable with a soft foot and permutation immediately, and after 30 days a young child may choose the shade for intersortation and additional nitrogen fertilizer. During the nursery period, basic tasks such as management of water fertilizers, pest control and weeding and pine soil should be strengthened. The following spring can be transplanted, the third year can be second transplanted, with plants 4-6 metres apart。
Iii. Fertilizer management
1. The root of soft dates is well developed and more hairy, and seedlings below 10 centimetres at the time of planting can be grown nakedly, and seedlings above 10 centimetres should be brought with earthballs, but earthballs can be dug a little bit, with trees five times the diameter and 60 per cent of the diameter. The planting of soft dates can take place after spring and late autumn, so it is appropriate to plant it late because it is late, but it must be done before it does, and if it does, the rate will be low。
2. Cultivated fermented cow and horse manure shall be used as base fertilizer, which shall be fully mixed with the planted soil, and shall be refilled in a manner that allows the soil to be laid down on a layer-by-soil basis, with a timely watering of the head, two waters in five days and three waters in about ten days. In subsequent management, water can be watered on the basis of soil acreage, the general principle being to keep the soil in a semi-state. After each watering, the pine soil is carried out in a timely manner. Water accumulations should be eliminated in a timely manner in summer and rain days. The end of the autumn was filled with freezing water。
3. In the early spring of the following year, unfrozen water will be poured in time and a nitrogen fertilizer will be applied once in the bud. If the plant is not strong, a page spray of 0. 5 per cent urea solution can be used in may, once for 10 days, with two to three consecutive effects. In july, potassium phosphorus fertilizer was applied once and frozen water was put in place at the end of the autumn. In the third year, water fertilization was carried out on a second year basis. Since the fourth year, agricultural fattening has been applied once a year at the end of the autumn, so that the unfrozen water is fertilized, so that the frozen water is fully fertilized, and at other times reliable natural precipitation, if not particularly arid, does not have to be watered separately。
Iv. Cutting trees
1. When soft dates are used more often in forest production in the form of an evacuation stratification, the usual tree shape is a natural crown when used in the garden as a side or shade tree. Therefore, it is important to develop straight trunks from the nursery age, and to do so as required。
The canopy shall consist of three to four branches, which shall be evenly distributed and divided. Four to five branches can be selected for each branch, leaving sufficient space for the branch to be selected and for the whole tree to grow evenly. When the basic tree formation takes place, competition branches, overlapping branches, overtows, cross branches and insect branches must be eliminated in a timely manner。
