Open field culture method for tomatoes in spring

Abstract

The invention discloses an open field culture method for tomatoes in spring. The method comprises the following steps: (1) selection of a variety of tomatoes, wherein the variety of Jinfenzaoguan can be used for open field culture of a spring tomato; (2) cultivation of a strong seedling of the right age, wherein early sowing is carried out at proper time, and normally, the age of the seedling is in a range of 60 to 70 d; (3) early transplanting and close planting, wherein a setting date is in the first and second thirds of April; (4) timely irrigation, wherein after recovery of the tomato seedling planted in a field, deep intertillage is carried out; (5) application of fertilizers, wherein since the growing period of the spring tomato is short, a base fertilizer should be sufficiently applied at a time, and topdressing frequencies should be a few and centralized; and (6) dipping of flowers, wherein dipping of the flowers should be carried out as fast as possible when a temperature is more than 30 DEG C, because falling of flowers and fruit frequently happens in a high temperature season in a later stage of fruit-retaining yield-increasing late-maturing tomatoes. The method provided by the invention enables plants to neatly grow and output to be increased and allows the plants not susceptible to diseases; with the method, a commodity grade can be improved, diseases prevention is realized, tomatoes can come into the market continuously, and consumption of labor and time and premature senility of the tomatoes are avoided.

Description

technical field [0001] The invention relates to a method for cultivating tomatoes, in particular to a method for cultivating tomatoes in the open field 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 Spring Festival. Due ...

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