CN104221794A - Germination-free rice seedling raising method - Google Patents

Abstract

The invention discloses a germination-free rice seedling raising method, which specifically comprises the following steps of (1) soaking seeds, namely soaking rice seeds for 18 to 30 hours in 1 to 1.5 mass percent of lime water, fishing up the rice seeds, and cleaning the rice seeds with clear water to obtain un-germinated rice seeds; (2) directly spreading the un-germinated rice seeds into an upland field rice seedling raising bed, pouring irrigation water over the un-germinated rice seeds, covering the un-germinated rice seeds with fine soil which is 1 to 1.5cm thick, and raising the temperature for seedling raising by virtue of a bow covering film. According to the method, a germination process is creatively eliminated, so that germ heating and germ damage are avoided, and the germination rate and the seedling rate are increased; the germination rate of a rice seedling bed is 84 to 89 percent, and is increased by 11 to 14 percent compared with the conventional seedling raising germination rate of 70 to 78 percent, the seedling rate is 81 to 85 percent, and is increased by 9 to 10 percent compared with the conventional seedling rate of 71 to 76 percent, and the using amount of the rice seeds is reduced by 10 to 15 percent.

Description

The paddy rice nursery method of not vernalization

Technical field

The invention belongs to arviculture field, be specifically related to the paddy rice nursery method of not vernalization.

Background technology

Conventional rice method of raising seedling is: seed rice 1-1.5% limewash is soaked 24 hours, pick up after cleaning with clear water, load in thin bamboo strip basket or wooden barrel and put into ground space for collecting ashes in a stove or the thermal environment vernalization such as abundant stack of rice straw or abundant fresh pigweed heap, grow after radicle plumule until seed rice, " bud paddy " is sprinkled into seedling in the smooth good mother field for seedling of fertilising, adopts bow epiphragma to heat seedling.

The defect that this method exists is:

1, easily " burning bud ".Pregermination procedure produces amount of heat, and " broken chest ", as removed sealing condition not in time, very easily high temperature burns bud, and lose one's life power.

2, easily " rotten bud ".Bud paddy after " broken chest " need through 24 hours time Extensive root, bud, if rotten bud will occur the finite concentration smell such as contact acid, alkali, ethanol around here, lose one's life power.

3, troublesome poeration, time-consuming.

Summary of the invention

In order to avoid " burning bud " or " rotten bud ", improve germination rate and percentage establishment of seedling, the present invention proposes the paddy rice nursery method of not vernalization.

For this reason, technical scheme of the present invention is: the paddy rice nursery method of not vernalization, and concrete steps are:

(1) soak seed, be that the limewash of 1-1.5% soaks 18-30 hour by seed rice mass percent concentration, pick up and clean with clear water, obtain " mute paddy ";

(2) directly spread " mute paddy " and enter medium for dry breeding of seedling bed, water enough moisture water, lid fine earth 1-1.5 cm thick, adopt bow epiphragma to heat seedling.

Beneficial effect: omission " vernalization " process of the present invention's innovation, avoids " burning bud " and " rotten bud ", improve germination rate and percentage establishment of seedling.Rice seedling bed germination rate 84-89%, percentage establishment of seedling 81-85%, improve 11-14 percentage point and 9-10 percentage point than conventional seedling vernalization germination rate 70-78%, rice seedling bed percentage establishment of seedling 71-76% respectively, saves seed rice consumption 10-15%.

Embodiment

embodiment 1

The paddy rice nursery method of not vernalization, concrete steps are:

(1) soaking seed, is that the limewash of 1% soaks 18 hours by seed rice mass percent concentration, picks up and cleans with clear water, obtain " mute paddy ";

(2) directly spread " mute paddy " and enter medium for dry breeding of seedling bed, water enough moisture water, lid fine earth 1 cm thick, adopt bow epiphragma to heat seedling.

embodiment 2

The paddy rice nursery method of not vernalization, concrete steps are:

(1) soaking seed, is that the limewash of 1.5% soaks 30 hours by seed rice mass percent concentration, picks up and cleans with clear water, obtain " mute paddy ";

(2) directly spread " mute paddy " and enter medium for dry breeding of seedling bed, water enough moisture water, lid fine earth 1.5 cm thick, adopt bow epiphragma to heat seedling.

embodiment 3

The paddy rice nursery method of not vernalization, concrete steps are:

(1) soaking seed, is that the limewash of 1% soaks 24 hours by seed rice mass percent concentration, picks up and cleans with clear water, obtain " mute paddy ";

(2) directly spread " mute paddy " and enter medium for dry breeding of seedling bed, water enough moisture water, lid fine earth 1 cm thick, adopt bow epiphragma to heat seedling.

In the present invention, mass percent concentration is the preparation of the limewash of 1-1.5%: joined by 1-1.5 kilogram of calcium oxide after dissolving in 98.5-99 kilogram of clear water, elimination lime mud.

Claims (1)

1. the paddy rice nursery method of not vernalization, concrete steps are:

(1) soak seed, be that the limewash of 1-1.5% soaks 18-30 hour by seed rice mass percent concentration, pick up and clean with clear water, obtain " mute paddy ";

(2) directly spread " mute paddy " and enter medium for dry breeding of seedling bed, water enough moisture water, lid fine earth 1-1.5 cm thick, adopt bow epiphragma to heat seedling.