CN1136388A

CN1136388A - Factory raising seedling method for one-step establishment by rice seedling throwing

Info

Publication number: CN1136388A
Application number: CN95105897A
Authority: CN
Inventors: 陈邦奎
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-05-25
Filing date: 1995-05-25
Publication date: 1996-11-27
Anticipated expiration: 2015-05-25
Also published as: CN1051671C

Abstract

The invented method prepares the culturing nutrient soil by mixing the sticky red earth and fat soil in accordance with the proportion of 1:1 or 1:2 and uses the hole planting culturing disc of the machinezed seeding productive line to seed the germinated seeds in the nutrient soil, then covers the earthing, under the condition of sunlight-free and 29-35 deg.C of temp. conducts the germination establishment for over 48 hrs, then transplants in the green house for greenery establishment. Said method features saving seeds (0.75-0.85 Kg of seeds per mu), even emergence of seedlings, well developed root group, quickly growing, easy surviving when throwing to the open field, and capable of increasing yield of 30-50 kg/mu.

Description

A kind of factory raising seedling method for one-step establishment by rice seedling throwing

The present invention relates to a kind of paddy seedling culture method, especially a kind of factory raising seedling method for one-step establishment by rice seedling throwing.

Traditional Rice Production all is to adopt at field seedling raising, pulls seedling then, inserts the method in other land for growing field crops again, and the area that takies the land for growing field crops when growing seedlings is big, sowing quantity is many, during rice transplanting working time long, intensity is big; In recent years in order to alleviate the work of rice transplanting, the rice seedling throwing technology is used more and more extensivelyr, this method has been removed heavy field rice transplanting work from, has shortened man-hour greatly, sowing quantity, land used amount obviously reduce, but growing seedlings of rice seedling throwing all is to adopt the method for floppy disk in field handwork at present, this method, and the various bioenvironmental conditions of growing seedlings can not be controlled, the needed biotic factor of rice seedling be difficult to satisfy, cause seed sprouting irregular, become seedling stage longer; Though there is the batch production seedling cultivation of rice in Japan, it is segmented into seedling and designs at machine rice transplantation, can not be used for rice transplanting, therefore needs the factory's seedling-cultivating method that solves the rice seedling throwing once-seedling forming badly.

The purpose of this invention is to provide a kind of energy and control the various bioenvironmental conditions of growing seedlings, it is neat to germinate, and becomes seedling stage shorter, and cost is low, the factory raising seedling method for one-step establishment by rice seedling throwing that output is high.

Order of the present invention is achieved in that with the mechanical planting production line nutrition soil is broadcast in the hole, multi-hole type of seedling raising disc cave, to broadcast on the nutrition soil in hole, multi-hole type of seedling raising disc cave through the seed after seed selection, seed soaking, the temperature control vernalization, repave earth backing, the growing floor of putting into unglazed photograph then adopts the steam heating method upright seedling that germinates, 29～35 ℃ of temperature controls, germinateing promptly moves into booth more than 48 hours, at 25～30 ℃, after 6～8 days once-seedling forming time, can go out canopy to the land for growing field crops rice transplanting.

The present invention is owing to adopt multi-hole type of seedling raising disc, the specific soil of growing seedlings, and the sowing of mechanical planting production line, therefore the method for booth greening once-seedling forming rice transplanting, saves time, economizes ground, seed sprouting is neat, the bud ratio height; Bring out the rice shoot root mass prosperity that comes, grow fast, easily survive, sowing quantity is few, and every mu only needs 1.5～1.7 jin, a traditional unit of weight of seeds, and can increase production 30～50 kilograms.

Below in conjunction with accompanying drawing the present invention is described in further detail.

Accompanying drawing 1 is a process chart of the present invention.

As shown in Figure 1, at first be immersion, the sterilization of seed, the seed after sorting seed by salt water is washed 1～2 time with clear water, formalin steaming with 50 times of liquid smoked 3 hours again, put into the pond after the sterilization and soaked seed, and water temperature maintains more than 20 ℃, soaked 3 days, and changed clear water every day one time.

Seed carries out temperature control vernalization after soaking well, and seed is put into the electric heating germinating box, and germination temperature is controlled at 30～36 ℃, and about 12～15 hours, the broken chest of seed showed money or valuables one carries unintentionally, and long 0.5～1 millimeter of bud can be sowed.

During sowing, use by soil spreading box, Seeding box, earth backing case, water spray (medicine) device and electric transmission system, broadcast the mechanical planting production line that auxiliary body such as quantity regulating device and frame are formed.Broadcast soil in the hole, cave on multi-hole type of seedling raising disc earlier, soil is selected the ratio mixing in 1: 1 or 2: 1 of dried pond sludge or paddy field soil and mountain reddle mud for use, make the soil on the seedling-cultivating tray have viscosity and the saturating property of pine simultaneously like this, help rice transplanting, the soil of growing seedlings preferably contains subacidity, should not sneak into chemical fertilizer, pulverizes after the native drying of growing seedlings again, make grogs can pass through 3 millimeters sieve apertures, broadcast the soil amount and reach 70～80% of cave hole depth; Broadcast soil, seed after the vernalization can be broadcast on the soil of growing seedlings, seeding quantity is that 3～5 seeds in every cave are advisable, then broadcast native topped seed, earth backing thickness is no more than 5 millimeters, is advisable with 3～4 millimeters, promptly spray water behind the earth backing, adopt little spray or spray, be advisable, do not make seedling-cultivating tray ponding with the drenched soil of growing seedlings.Broadcast and seedling-cultivating tray neatly is stacked on the germination car after planting, dish and dish should be gapped between up and down, so that it is even to heat.

With germination car after planting, push and have unglazed photograph, insulation, the growing floor of ventilatory function heats temperature control with electric automatic temperature control device, makes the constant temperature of 32 ℃ of indoor maintenances, neat fast, sturdy to guarantee seed sprouting, germinate more than 48 hours, just can send into booth and afforest into seedling when bud reaches 15～20 millimeters, this is the fast seedling growing key of success.

Seedling dish behind the upright seedling that germinates enters booth and is placed on the three-dimensional frame that wherein is provided with, the long lower floor that is put in of germinateing, the short upper strata that is put in, should leave spacing between the seedling-cultivating tray, be beneficial to upper and lower layer printing opacity, after seedling-cultivating tray is put on the shelf, spray medicine immediately, with mould proof, during the booth greening, should notice that insulation is about 25～30 ℃ with atomizers spray, should note the water spray insulation when not sending out true leaf, temperature height, humidity hour should be sprayed water more, otherwise then should spray less or not spray water; After rice shoot greening was sent true leaf in 3～4 days, should note temperature control and ventilation, should in noon and afternoon water spray, squirt to the upper strata with near the rice shoot of booth limit row, and upper and lower layer of seedling dish of seedling frame changed; When the rice shoot greening grew two leaves in 4～5 days, should notice that temperature control, control are wet and spray is fertile, and take to open the booth door, day and night gravity-flow ventilation, as the temperature commentaries on classics of ventilating is low, and should close the booth door night, prepares out the canopy rice transplanting when rice shoot and should stop water spray the previous day, it is loose to make seedling with adhering soil keep certain degree of hardness to be difficult for, and afforests 6～8 days rice shoot height and reaches 8～10 centimetres standard and can go out canopy disk stripping rice transplanting.

Factory raising seedling method for one-step establishment by rice seedling throwing both had been applicable to the conventional rice kind, also was applicable to assorted excellent rice varieties.

Claims

1, a kind of factory raising seedling method for one-step establishment by rice seedling throwing, it is characterized in that using the mechanical planting production line, nutrition soil is broadcast in the hole, multi-hole type of seedling raising disc cave, to broadcast on the nutrition soil in hole, multi-hole type of seedling raising disc cave through the seed after seed selection, seed soaking, the temperature control vernalization, and repave earth backing, the growing floor of putting into unglazed photograph then adopts the steam heating method upright seedling that germinates, 29～35 ℃ of temperature controls, germinateing promptly moves into booth more than 48 hours, 6～8 days once-seedling forming time, can go out canopy disk stripping rice transplanting.

2, factory raising seedling method for one-step establishment by rice seedling throwing as claimed in claim 1 is characterized in that nutrition soil mixes with the viscosity red soil with the soil that fertilizes the soil, and ratio is 1: 1 or 2: 1.

3, factory raising seedling method for one-step establishment by rice seedling throwing as claimed in claim 1 is characterized in that the soil amount of broadcasting in the hole, multi-hole type of seedling raising disc cave is 70～80% of cave hole depth; 3～5 in every bunch planting seed, earth backing thickness are no more than 5 millimeters, are advisable with 3～4 millimeters.

4, factory raising seedling method for one-step establishment by rice seedling throwing as claimed in claim 1, temperature is controlled at 30～36 ℃ when it is characterized in that temperature control vernalization, and about 12～15 hours of time, the broken chest of seed shows money or valuables one carries unintentionally, long 0.5～1 millimeter of bud.

5, factory raising seedling method for one-step establishment by rice seedling throwing as claimed in claim 1 is characterized in that the one-tenth seedling temperature in the booth is controlled at 25～30 ℃.