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2. Sowing Period and Time of Listing The planting time for the production of tomato plants in Cong Guilin Daylight Temperatureing advances year by year, sowing on October 15, 1988, planting on December 9th, listing on February 25th, planting on October 14th, 1989, December 7th Colonization began on February 22. Planted on October 1, 1990, planted on November 27, and began listing on February 15. Sowing on September 16, 1991, planting on November 20, the first panicles began to be listed on February 8, 1992, the third panicle was harvested on April 19, and the fourth panicles began to be listed on May 5, On June 5th, the sixth panicle was harvested. On June 20, the seventh panicle began to be harvested. On July 20th, the ninth panicle and ten panicle were harvested, and then the panicle was picked.
3. The key to nurturing strong seedlings and nurturing strong seedlings is to control leggy and promote flower bud differentiation. The preparation of nursery nutrition must be strict, not only have sufficient nutrition, but also have good water retention and good air permeability. Seedlings are generally used to transfer seedlings (sub-seedlings) at one time, and the seedlings are gradually poured (seedlings) to increase the light-receiving area of ​​the seedlings. Before sowing, the seedlings were soaked and soaked. After germination, germination was carried out. Before sowing, the seeds were sowed on the sowing bed until two leaves of the true leaves were transplanted. Seedlings generally do not control the moisture, temperature management generally during the day at 20-25 °C, 8-13 °C at night. Seedlings should be strengthened with light management. The seedlings are generally placed in the best conditions of temperature and light in the greenhouse. Between seedlings and seedlings, they must be guarded against each other. For example, the closeness between the seedlings and the larvae should be increased. This is the key to the cultivation of strong seedlings. After sowing, about 60 tomato seedlings are to be flowered, and the vast majority of buds are to be colonized.
4. Soil preparation for planting shall be 1 meter wide, 10 cm high and then covered with plastic film. Generally 1 meter open two ditch (each row of tomato sweat - ditch), ditch depth of about 30cm, fertilization using gully application of 15,000 kilograms per mu farmhouse fertilizer, 50 kg of diammonium phosphate. The hose drip irrigation equipment was laid under the mulch before the membrane was covered. Planting density: 1 meter planted double row, 30-33 centimeters from the plant, the greenhouse slightly dense, and the back slightly dilute. Roots are planted along the wall at the back wall. The method of colonization is to cut the mulch cross with a blade, pick up the planting with a small rate by hand, reconstruct and seal the mulch after planting, and compact it with soil.
5. Management after planting (1) Flowering and fruit protection Planting 2 After 3 to 3 days, flowering begins. During the flowering period, artificial pollination of plants or shaking of inflorescences to assist in pollination was used to treat inflorescences with tomato fruit hormones. With the Department of Horticulture, Shenyang Agricultural University, the tomato production and production of No. 2 silk flowers or spray flowers.
(2) Warming and heat preservation After the planting, pay attention to warming and heat preservation, cover the paper quilt, and make the grass curtains thick, uniform and firm. Severe weather is artificially heated. The temperature is maintained between 5°C and 25°C.
(3) Enhanced light and weak light compensation management adopts a well-lighted, energy-efficient solar greenhouse. New plastics are used in plastics and polyvinyl chloride-free dripping films are used. Clean plastic often. Under low-light conditions, as little as possible irrigation, night temperature management should be appropriately low.
(4) The new method of pruning adopts the method of continuous regeneration and pruning. The first three panicles were singly pruned and the remaining lateral branches were left with 1 leaf topping. About 80 days after planting, the first inflorescence was no longer pruned when it was harvested, and all lateral branches were placed at this time. When most of the lateral branches grew, one or two robust collaterals were selected as the resulting shoots in the middle and upper part of each plant, and the remaining lateral branches were left with the leaves removed. If you leave one result branch, then use the single stem pruning method, and then leave 3 ear fruit, leave the leaves topping. If you leave 2 result branches, leave 1-2 fruits for each result and leave leaves topping. The results showed that the branches on the branches were left to leave the heart. When the fourth ear begins to harvest, the lateral branches are reintroduced, and the strong lateral branches are selected as the resulting branches and the results are continued. Generally, when the open tomatoes are marketed in mid-July, the tomato cultivation in the greenhouse in winter and spring continues to produce. Although there is yield, the economic benefit is not great.
(5) Prevention and treatment of disease prevention and treatment mainly adopts proper low temperature and dry conditions. Frequent spraying of fertilizers. Once the central diseased plant was found, it was sprayed in time.
(6) Fertilizers The fertilizer and water are mainly based fertilizers, and the fourth inflorescence is generally not top-dressing before harvesting. Strengthen the fertilizer later. Winter is not particularly arid and generally not watered.
(7) Harvesting and artificial germination are usually harvested when the fruit turns red. The fruits on the plants were smeared with 2000 ppm ethephon during the green period of the fruit.
1. Variety Selection Variety Lichun was cultivated by the Chinese Academy of Agricultural Sciences. The outstanding characteristics of this variety are low light, low temperature, good tolerance, high fruit setting rate, fast fruit growth, and malformed fruit rate. Low, concentrated collection period, good quality, and good merchandise.