Special matrix for soilless paddy rice seedling breeding and preparation method thereof

Abstract

The invention discloses a special matrix for the soilless paddy rice seedling breeding and a preparation method thereof. The special matrix for the soilless paddy rice seedling breeding comprises the following raw materials, 10-20% of a biological organic fertilizer, 80-85% of an organic matter which comprises materials of carbonized rice husk, rice husk ash and plant straw ash, 1-1.5% of a fertilizer, 0.2-0.5% of sulfuric acid, and 0.2-0.4% of a bactericide. According to the biological organic fertilizer of the special matrix for the soilless paddy rice seedling breeding of the invention, the content of the organic matter is greater than 30%, the content of humic acid is greater than 15%, the number of live beneficial microbe strains in 1ml of the biological organic fertilizer is 60 millions, the content of quick-acting N, P and K is high to above 6%, and the biological organic fertilizer is rich various medium trace elements of Ca, S, Si, Fe and Mg needed by crops. By adopting the special matrix of the invention to breed seedlings, the seedlings have a large number of roots and root hairs and have a large root capacity, no seedling diseases are generated, the seedling packing is good, the seedlings take root and do not need seedling recovering period after transplanting, the seedlings survive after being directly rooted, and effective tillering is started in advance, so the yield increase and the income increase are realized.

Description

Technical field

[0001] The invention relates to the technical field of agriculture, in particular to a special substrate for soilless rice seedling raising and a preparation method. Background technique

[0002] Since the 1980s, rice dry-raising and sparse-planting cultivation technology has been widely used in my country through introduction, experimentation, and demonstration. It has been 30 years of history, making my country's rice production from direct seeding cultivation to dry-raising seedling transplanting cultivation. The rapid development of rice production has shown a gratifying situation today. The cultivation area is large, the yield per unit area is high, the total output steadily ranks first in grain output, and the economic benefits are significant.

[0003] The essence of the technology of transplanting rice dry seedlings and sparse planting is: using fertile and loose dry field soil, in the dry environment of the seedbed, cultivating seedlings with strong and deve...

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