Direct sowing seedling matrix for bletilla striata seeds and preparation method of direct sowing seedling matrix

Abstract

The invention discloses a direct sowing seedling matrix for bletilla striata seeds and a preparation method of the direct sowing seedling matrix. The matrix is prepared from a seedbed layer matrix and a seed layer matrix, wherein the seedbed layer matrix is prepared from the following ingredients: 80 to 100 parts of hill sand, 8 to 30 parts of thoroughly decomposed organic matter, 3 to 10 parts of thoroughly decomposed sheep manure, 1 to 4 parts of ternary compound fertilizer and 0.1 to 1 part of zinc sulfate; and the seed layer matrix is prepared from the following ingredients: 30 to 60 parts of hill sand, 30 to 60 parts of thoroughly decomposed organic matter, 1 to 4 parts of ternary compound fertilizer, 0.1 to 1 part of zinc sulfate, 0.1 to 1.5 parts of carbendazim, 0.1 to 1 part of monopotassium phosphate and 0.1 to 1 part of ammonium molybdate. The direct sowing seedling matrix disclosed by the invention can provide nutritional ingredients required by seed cells for germination; the seeds can change color within 10 to 15 days; green appears within 15 to 20 days; a first leaf comes out within 25 to 30 days; the length of a underground bulb can be as long as 0.8 to 2.2cm within 180 to 250 days; a plant is 15 to 32cm high; the sprouts and seedlings are in good order and grow evenly; the weeds are very few; and moldy and browning seeds and seedlings do not exist.

Description

technical field [0001] The invention relates to a direct-seeding seedling-raising substrate of bletilla striata seeds and a preparation method thereof, belonging to the technical field of plant breeding. Background technique [0002] At present, most of the substrates for direct seeding of Bletilla striata seeds are commercially purchased special substrates, but there are large differences between batches of substrates in use, resulting in high and low emergence rates, irregular emergence, uneven growth, and incomplete treatment of weed seeds in the substrate. Grass damage is serious and other problems, and the purchase cost is high. However, although the use of sand to cultivate seedlings can avoid the harm of weeds, it has not been popularized and applied because of unreasonable nutrients, unsuitable organic matter ratio, excessive dosage, and easy mildew. Contents of the invention [0003] In order to solve the above problems, the present invention provides a Bletilla ...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above-mentioned problems, the present invention provides a Bletilla striata seed seedling-raising substrate for direct seeding and its preparation method, which can completely solve the problems of improper substrate ratio, unscientific nutrient coordination, excessive weed damage, irregular germination and seedling emergence, and uneven growth progress.