Seedling raising method suitable for mechanical transplanting of leafy vegetables

Abstract

The invention discloses a seedling raising method suitable for mechanical transplanting of leafy vegetables. The seedling raising method comprises the following steps that peat and coco coir are uniformly mixed according to a volume ratio of (4-5): 1 to prepare a seedling raising substrate; the substrate is filled in a seedling hole tray, and planting seeds are sowed; after cotyledons are developed on the seeds, propiconazole diluent is sprayed to the surface of the substrate in the hole tray; and a microelement water-soluble fertilizer is applied into the substrate when the seeds grow to a two-leaf one-core stage. According to the seedling raising method, root systems of seedlings cultivated and planted by the seedling raising method are easy to form lumps and free of lump scattering, hypocotyls grow strongly and are not prone to lodging when hole tray seedlings come out of a nursery, leaves become small and thicker, adjacent leaves are not shaded, and the seedling raising method is suitable for the mechanical transplanting.

Description

technical field [0001] The invention relates to the technical field of vegetable cultivation, in particular to a seedling raising method suitable for mechanized transplanting of leafy vegetables. Background technique [0002] Leafy vegetables are the most consumed vegetables in people's daily life, with a high degree of production intensification, a large multiple cropping index, and the cultivation scale ranks first among vegetables. For the planting methods of leafy vegetables, there are generally two kinds, one is direct sowing, and the other is to grow seedlings first and then transplant. [0003] Direct sowing is a traditional planting mode, which has the following disadvantages: First, this planting method not only wastes seeds, but also requires a lot of labor and increases production costs due to the need for multiple thinning during the direct seeding planting process; The seedlings in the direct seeding method grow irregularly, which leads to unstable product qual...

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Problems solved by technology

[0003] Direct sowing is a traditional planting mode, which has the following disadvantages: First, this planting method not only wastes seeds, but also requires a lot of labor and increases production costs due to the need for multiple thinning during the direct seeding planting process; The seedlings in the direct seeding method grow irregularly, which leads to unstable product quality and low commodity rate; thirdly, the plants grow in the field for a long time, take up a long time, and pose a great threat of pests and diseases, which leads to an increase in the use of pesticides and food safety cannot be guaranteed ; Fourth, the plants have a long growth cycle in the field, and the production process is more likely to be affected by bad weather or natural disasters, and the production risk increases; , leading to an increase in field operations such as fertilization and weeding, and an increase in production costs

In China, although more than 1,500 enterprises and cooperatives are currently engaged in large-scale vegetable seedling cultivation, and the total annual intensive vegetable seedling cultivation is about 300 billion plants, most of the commercialized seedling species are based on the age of seedlings and the cultivation density. Self-rooted seedlings and grafted seedlings of small melons and solanaceous vegetables are mainly used, and there are very few commercial leaf vegetable seedlings

For a long time, there are no strict and uniform standards for the types and specifications of leafy vegetable seedling containers, seedling substrate formulations, seedling management methods, and seedling emergence standards. Requirements for the development of vegetable industry

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