Method for early maturing culture of tomatoes in plastic-covered tunnel in spring

Abstract

The invention discloses a method for early maturing culture of tomatoes in a plastic-covered tunnel in spring, which comprises the following steps of 1, selection of varieties: fine varieties suitable for early maturing culture are selected; 2, seeding in optimum period: seeding is carried out in the first ten days of January; 3, early planting in optimum period: big seedlings and strong seedlings are planted in the middle ten days of March, which is the basis of early maturing; 4, application of growth regulator: the tomatoes are subjected to fruit retention and mulching culture, and if plants grow vigorously in the earlier stage, flowers and fruits drop more easily; 5, reasonable utilization of ethephon for ripening: as the temperature in spring is lower, the fruits are slowly ripened; and 6, management reinforcement: in order to come into the market earlier, promoting is primarily adopted in culture and management for promoting the growth and the development, but measures of 'hardening after promoting' and 'hardening during promoting' need to be taken. 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 method for cultivating tomatoes, in particular to a method for precociously cultivating tomatoes in plastic greenhouses in spring. 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 Spri...

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 been 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