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(1)Preparation of seedlings and seedlings: If seedlings are grown by artificial domestication, the seedlings may be lifted at the end of October or early November, and the seedlings will be placed in a cool place after being lifted out to avoid stacking so as to avoid Injury, loss of water, affect the survival, such as seedlings close to the greenhouse, can raise seedlings, while transplanting.
If there are no artificially domesticated seedlings, collect seedling roots in the densely growing areas of D. oleifera. In late September, no heavy frost is present before heavy rain or frost. Seedlings cannot be rooted. When the roots are taken, the dried stems and leaves are removed, and the roots are poked out with a hoe so that they cannot be damaged. After collection, they are brought back to the greenhouse and ready for transplanting. When stored, they must not be damaged by heat or water.
(2) Soil preparation and fertilization: Clean up the greenhouses from the end of October to the beginning of November, use 3,000 kg of farmyard manure (1000 kg for the mu), spread the rest of the farmland, and then turn the land, rake the soil, make a bed, and make the bed north and south. For "concave" shaped trough bed, bed depth 15cm, filled with sifted hillside soil and leave out the farmyard manure (filling quantity 1000 kg farmyard fertilizer 2000 kg hillside soil), and then flat, bed width 1.2 to 1.5 meters, The length of the bed depends on the span of the greenhouse. The width of the trail between the bed and bed is 10 to 15 cm.
(3) Transplanting: Before planting, planting water (5 cm soil temperature is saturated) before planting. After slightly drying, put 400 or 500 seedlings (roots) in the bed per square meter of seedlings or roots. , The production of products of large leaf celery (generally 50 meters long, 7 meters wide in the greenhouse, the number of planting large celery 100,000 to 120,000 seedlings), the above method is uniform pendulum seedlings (root), pendulum when each root, seedlings The growth point is upwards. The second method is to plant the ditch with a spacing of 5 cm, a spacing of 3 cm, and transplanting the seedlings. Use the second method, first planting and pouring the bottom water, no matter what kind of cultivation method is used, after planting the hillside soil that has been screened, the thickness is 2 cm, and after the soil is covered, the water is poured with a watering can and the water is locally dewed. Places are covered with soil.
(4) Field management: Pay attention to the management of moisture and temperature before planting, water content depends on soil moisture, bed soil humidity should be 65% to 75%, temperature is controlled at 25 to 30°C, minimum must not be lower than 5°C. Pre-emergence temperature can shorten the emergence time, the suitable temperature after emergence is 18-22 °C, the maximum can not exceed 25 °C, the minimum must not be lower than 5 °C, the temperature is too high, stems and leaves easy to aging, the temperature is too low, affecting the growth rate, lower At 5°C, the big celery basically stopped growing.
According to the light requirements, the growth of D. oleifera does not require strong light. Therefore, after emergence, shade nets are hung under the greenhouse film in the greenhouse to avoid strong light irradiation and create a suitable production environment.
Timely weeding, timely weeding according to the growth of weeds in the field.
(5) Harvesting: The main criteria for harvesting are that the stems and leaves are fresh. When the plants grow to 15-20 cm, they can be harvested and marketed. When harvesting, the standard plants can be cut off from the surface with a sickle to press the plants. The length of the products is divided into grades, and a small amount (0.5 to 1.0 kg) is packaged and put on the market. During transportation, attention should be paid to insulation, avoid frostbite and affect quality.
Harvest time: From the end of December to the end of April, wild Tamarisk can be listed. Winter production can harvest 2 to 3 tons, and the output per square meter can reach 2-3 kilograms.
Third, raise root fertilizer
At the end of April harvesting, the upper part of the greenhouse cultivated phyllostachys lucidum was cleared, and 3,000 kg of fertilized farmyard manure was applied to the bed to spread the soil moisture to allow it to germinate. At this time, temperature, moisture, and light were After the above standard management, after the frost period expires, remove the shed film, leave a shade net, weed regularly, and from late August to mid-September, harvest the seeds in time, collect the seeds as they are harvested, and harvest the seeds too late. Shedding, long flowering to maturity, so the harvest period is also long.
In order to make full use of greenhouses to increase economic efficiency, cowpea or small-fruited tomatoes can be cultivated at the end of the harvesting of the large-leaved parsley.
The cultivation of tall fruit-type tomatoes can use the United States yellow sheep persimmon and cherry tomatoes, plant tall, strong resistance. To raise seedlings in advance, from the end of January to the beginning of February, cultivate the seedlings, and collect the end of the harvest time. Each row of plants is lined with a row of plants with a spacing of 40 cm. The front corner of the greenhouse is planted horizontally. The plant spacing is the same as above and the plant height is up to 3 meters. Above 2,500 kg, some benefits can be obtained, and more importantly, shading effects of the root culture of the giant-leaf parsley are provided.
In mid-November, all the litter on the ground in the greenhouse was cleared, 3000 kg of farmyard fertilizer was applied, and plastic sheds were used for winter production. The method is the same as above.
IV. Asexual breeding seedlings
1, tissue culture
There are conditions in which biotechnology can be used for tissue culture and breeding of seedlings, but this method cannot be implemented by farmers at present.
2. Breeding
From mid-to late April to early May, the wild phyllostachys lucidum roots, together with the stems and leaves of the aboveground parts, can be collected for open cultivation. The method is basically the same as in the greenhouse cultivation in winter. The difference is that the density of cultivation is thinner, and the number of acres per plant is different. 45,000 to 55,000 strains, spacing 20 centimeters, spacing 6 to 7 centimeters, do bed, ditch planting, management methods ibid. This cultivation method can achieve the purpose of cultivating seedlings. First, some seeds can be harvested in the same year, and seedlings can be planted in the second year; second, new roots can be replanted after one year of cultivation, and can be planted before freezing. Root out, enter the greenhouse for winter production. If winter production is not carried out, early in the spring and early March, the plastic sheeting will be put in place early in the year, and the production will be carried out using a greenhouse or a small shed. The product will be available in the middle and early April. Late release of normal management.
Seed breeding can also be carried out in greenhouses. In the middle and late March, small hole nutrition tanks are used to raise seedlings in the greenhouse. The seedlings emerge in the middle and early April, and the seedlings emerge in the late April. After the final frost period in late May, the seedlings are transplanted to open fields for planting. , the method is planted with the open field.
Daerqin winter greenhouse cultivation technology
The greenhouse production in winter mainly utilizes the seedlings cultivated in the year and is transplanted into a solar greenhouse for winter production.