Greenhouse cultivation method of tomatoes

Abstract

The invention discloses a greenhouse cultivation method of tomatoes, which consists of the following steps of 1, selection of varieties: tolerant varieties with the advantages of cold resistance, shade resistance, fast growth, less leaves and high photosynthetic capacity in spring are selected; 2, seeding in optimum period: the growth period of tomatoes growing in a greenhouse is longer than that of tomatoes growing in open field from seeding to harvesting; 3, autumn and winter cultivation: greenhouse cultivation tomatoes which come into the market before and after Spring Festival are cultivated; 4, overwintering cultivation: the seeding date is generally at the beginning of September; and 5, winter and spring cultivation: greenhouse cultivation is carried out on tomatoes which are harvested in spring. Seedlings are completely raised in a greenhouse or a hotbed in a freezing season, if the temperature condition of the greenhouse is good, and the average temperature in the daytime can be enabled to be about 25 DEG C, sparse seeding can be generally carried out, seedling separating is not needed, proper bacteria thinning out is performed, the seedling stage is 30-40 days, and early planting is performed when six to seven main leaves grow out; and if the seedlings are seeded in the hotbed, seedling separating can be carried out for saving protecting equipment, and the seedling stage is prolonged to 70-80 days, so that early harvesting in spring can be ensured, and grow seedlings can be flexibly seeded in various regions. The method has the advantages that the plants grow in order, the yield is increased, and the plants are not easily infected with diseases, the grade of commodities is improved, disease prevention and continuous appearing on the market of products are favored, labor wasting and time wasting and premature senility of the tomatoes are avoided, and accordingly the economic benefit is improved.

Description

technical field [0001] The invention relates to a tomato cultivation method, in particular to a tomato greenhouse cultivation method. Background technique [0002] As we all know, tomato planting has a long history. In the 1980s, the main varieties planted were Maofen 802 and Xifen No. 3. In the 1990s, L-402 was the main variety. The growth of the plants is uneven, the yield decreases, the coloring becomes poor, the deformed fruits increase, and the plants are susceptible to diseases. In terms of cultivation technology, the cultivation density is too high, which is not conducive to disease prevention. There is no habit of applying organic fertilizers in autumn and winter cultivation, which is prone to premature aging, less fruit per plant, and short fruiting period, which is not conducive to continuous marketing of products. Re-cultivation after a year is labor-intensive Time-consuming, especially during New Year's Day and Spring Festival. Due to the limited facilities and...

AI Technical Summary

Problems solved by technology

In terms of cultivation technology, the cultivation density is too high, which is not conducive to disease prevention. There is no habit of applying organic fertilizers in autumn and winter cultivation, which is prone to premature aging, less fruit per plant, and short fruiting period, which is not conducive to continuous marketing of products. Re-cultivation after a year is labor-intensive Time-consuming, especially during New Year's Day and Spring Festival

Due to the limited facilities and high product efficiency, a certain regional effect has been formed, so it is often planted year after year, which causes poor growth. Even if a large amount of fertilizer is used, it will not be completely improved. The growth points shrink, and the new branches and leaves cannot be stretched normally, causing tomato Premature senility; although tomato does not have strict requirements on soil conditions, the oxygen content in the soil has a great influence on the growth of tomato root system. One-sided application of chemical fertilizers often leads to soil compaction, reduced soil permeability, and poor root growth and development. premature aging of tomato

Or some vegetable farmers apply too much fertilizer at one time in order to obtain high yield as much as possible, resulting in increased soil concentration, hindered root growth, and premature senility of tomatoes; After the stubble is vacated, older seedlings and leggy seedlings have formed. After planting, because the main root is damaged, it is difficult for the adventitious root to satisfy the crop's absorption of water and inorganic salts, often causing the plant stem to be hollow