Two-stage seedling raising method using river sand as matrix

Abstract

The invention discloses a two-stage seedling raising method using river sand as a matrix and relates to the field of farming, forestry and gardening. The method comprises the following steps of: a, selecting fine river sand; b, laying a layer of woven bags or newspaper in a seedling raising disc or a flat bottom non-watertight container, laying sterilized river sand with the thickness of 3cm on the woven bags or newspaper, and flattening the surface; c, sowing sprouted crop seeds on the river sand at high density, wherein the distance between the seeds is kept between 0.5 and 1cm; d, coveringthe sterilized river sand with the thickness of 0.5 to 1cm on the seeds, and finally watering once to flatten the sand surface; e, putting the seedling raising disc or the flat bottom non-watertight container where the seeds are sown in a greenhouse or a plastic tent and other environments suitable for germination and growth for seedling stage management; and f, after seedling cotyledons are opened, transplanting the seedlings into a plug where the matrix is filled when the seedling cotyledons are strongly green and plump, lifting the woven bags from one side in the process of raising the seedlings, loosening the river sand, slightly lifting the seedlings, keeping seedling root systems complete, preventing the seedling root systems from being damaged, forming a hole in the center of the matrix in the plug through bamboo chopsticks, putting the seedlings into the hole, compacting the matrix, thoroughly watering, and managing according to the growth environment conditions of the seedlings.

Description

Technical field: [0001] The invention relates to the field of agriculture, forestry and gardening, in particular to a two-stage seedling raising method using river sand as a substrate, which is especially suitable for raising seedlings of vegetables, flowers, forest trees, medicinal materials, tobacco and other crops with a small thousand-grain weight. Background technique: [0002] Substrate seedling cultivation is not only suitable for small-scale seedling cultivation by farmers, but also suitable for large-scale industrial seedling cultivation. It has been widely used in our country. However, there are still shortcomings such as lack of seedlings, top shells, untidy emergence of seedlings, careless watering and easy dew seeds during production. Invention content: [0003] The purpose of the invention is to provide a two-stage seedling raising method in which river sand is used as a substrate. [0004] In order to solve the above technical problems, the present inventio...

AI Technical Summary

Problems solved by technology

However, there are still some shortcomings in production, such as lack of seedlings, top shell, untidy emergence, careless watering, and easy to dew seeds.