CN1051671C

CN1051671C - Factory raising seedling method for one-step establishment by rice seedling throwing

Info

Publication number: CN1051671C
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: 2000-04-26
Anticipated expiration: 2015-05-25
Also published as: CN1136388A

Abstract

The present invention discloses a factory seedling culturing method for seedling survival at a time by rice seedling throwing. Rich field soil and sticking red soil are mixed according to the proportion of 1 to 1 or 2 to 1 to be used as nutrient soil for culturing seedlings, a machine is used for sowing, and a cavity dividing seedling culturing tray is sown in a productive line. Seeds after pregermination are sown on the nutrient soil, covering earth is paved, gemmation and seedling standing are carried out for more than 48 hours at the temperature of 29 to 35 DEGC without illumination, and the seeds are moved into a greenhouse to be afforested into seedlings. The method has the advantages of small seed quantity, orderly seed gemmation, high bud ratio, upgrowth seedling root group and quick growth, only 1.5 to 1.7 catties of seeds are needed per mou, the seedlings are easy to survive when the seedlings are thrown into a field, and a yield is increased by 30 to 50 kilograms per mou.

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 be to adopt at field seedling raising, pull seedling then, insert the method in other land for growing field crops again, the area that takies the land for growing field crops when growing seedlings is big, sowing quantity is many, working time is long during rice transplanting, intensity is big, and the rice seedling throwing technology is used more and more extensivelyr in recent years, this method, removed heavy field rice transplanting work from, shortened man-hour greatly, sowing quantity, the land used amount obviously reduces, but growing seedlings of rice seedling throwing all is to adopt the method for floppy disk in field handwork at present, this method, the various bioenvironmental conditions of growing seedlings can not be controlled, and the needed biotic factor of rice seedling is difficult to satisfy, and causes 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.

Purpose of the present invention provides a kind of can control the various bioenvironmental conditions of growing seedlings, and 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.

The object of the present invention is achieved like this: 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 germinates, and 29～35 ℃ of temperature controls germinate more than 48 hours, when bud reaches 15～20mm, promptly move into booth, the one-tenth seedling temperature in the booth is controlled 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 soil and cover 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, promptly send into booth and afforest into seedling when bud reaches 15～20 millimeters, this is the fast seedling growing key of success.

Enter booth through the seedling dish after the germination and be placed on the three-dimensional frame that wherein is provided with, the long lower floor that is put in of germinateing is than the short upper strata that is put in, should leave spacing between the seedling-cultivating tray, be beneficial to, the upper strata 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 out true leaves 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, change low as temperature, 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, repave earth backing, the growing floor of putting into unglazed photograph then germinates, 29～35 ℃ of temperature controls, germinate more than 48 hours, bud reaches 15～20mm and promptly moves into booth, one-tenth seedling temperature in the booth is controlled at 25～30 ℃, 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 according to 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 according to 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 according to 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.