CN103503733A

CN103503733A - Cultivation method for hybrid rice autumn seedlings

Info

Publication number: CN103503733A
Application number: CN201310435894.2A
Authority: CN
Inventors: 钟荒年
Original assignee: Hubei Zheng He Meter Industry Co Ltd
Current assignee: Hubei Zheng He Meter Industry Co Ltd
Priority date: 2013-09-23
Filing date: 2013-09-23
Publication date: 2014-01-15
Anticipated expiration: 2033-09-23
Also published as: CN103503733B

Abstract

The invention discloses a cultivation method for hybrid rice autumn seedlings and aims to provide a cultivation method, wherein the cultivation method is high in rice yield, rice quality is excellent, and rice is good in mouthfeel. The cultivation method is characterized by including the following steps that in 3-5 days after the grain in ear day, Shanyou 63 seeds are immersed in limewater for 6 hours, water on the surface are drained off, then, water is sprayed to the seeds for moistening every 6 hours until the Shanyou 63 seeds naturally break through seed coats, after water on the surface is dried in the air, the seeds are immersed in a paclobutrazol solution for 10-20 minutes and then are fished up, and water on the surface is drained off; phosphorus potassium fertilizers are applied to soil in 3-4 days before seeding; seeding is performed according to 8-12kg, after seeding, water is drained off, a herbicide is used for hindering un-sprouted weeds from growing, a paclobutrazol solution is sprayed, irrigation is performed, then the seedlings naturally grow until 4-5 days before the great heat day, quick-acting nitrogenous fertilizers are continuously applied, and the seedlings grow to the great heat stage and are ready to be transplanted; nitrogenous fertilizers are applied in 3-4 days before the transplantation, mist spraying is performed with the paclobutrazol solution in 1-2 days before the transplantation, and then the seedlings can be transplanted. The cultivation method for the hybrid rice autumn seedlings belongs to the technical field of crop cultivation.

Description

The breeding method of the multiple autumn rice shoot of a kind of hybrid rice

Technical field

The present invention discloses a kind of breeding method of rice shoot, specifically, is the breeding method of the multiple autumn rice shoot of a kind of hybrid rice; Belong to crops culture technique field.

Background technology

Along with the sustainable growth of development and the population of economic society, the imbalance between supply and demand of the industrial or agricultural land used resource of China is increasingly sharp-pointed, strives soil plantation volume increase, improves grain yield, is extremely urgent task.

Shanyou 63 is after breeding in 1981 success, and from spread in 1984 so far, the whole nation has added up to promote nearly 900,000,000 mu of sowing.Famous rice breeding expert Yang Shouren says, Shanyou 63 has been rescued the life of hybrid rice.These words have no exaggeration, on Vietnam, Philippine and other places, Shanyou 63 is described as " refreshing rice ", and amount of increase in production is up to 69% to 133%, and benefit increases by 42% to 266%, the multiple advantage such as had both that output is high, better resistance, wide adaptability, rice matter are good, but the suitable One-season Planting of Shanyou 63, the Shanyou 63 output that multiple autumn planting is planted is lower, and damage by disease and insect is more, the rice mouthfeel of planting is poor, and this has brought very large puzzlement to agricultural producer.

How allowing the rice variety that is applicable to single cropping also can plant in the fall, is the problem that numerous agricultural producers study always and explore.

Summary of the invention

For the problems referred to above, the object of the present invention is to provide the breeding method of the multiple autumn rice shoot of a kind of hybrid rice, by the method, cultivate the paddy rice rice yield that autumn rice shoot is planted again high, good grain quality, mouthfeel is good.

For solving the problems of the technologies described above, technical scheme provided by the invention is such: the breeding method of the multiple autumn rice shoot of this hybrid rice, it is characterized in that, and comprise the steps: successively

1) in later 3～5 days in Grain in Ear, limewash for Shanyou 63 seed is soaked 6 hours, drain surperficial moisture content, after this, every 6 hours wetting seeds of water spray once, until Shanyou 63 seed breaks chest naturally;

2) the Shanyou 63 seed of broken chest is spread out and dried after surperficial moisture content, be immersed in 500～750 times of solution of 15% paclobutrazol, after 10～20 minutes, pick up and drain surface moisture;

3) sowing is executed phosphorus potash fertilizer to soil in first 3～4 days;

4) by 8～12 kilograms of sowings of every mu of Shanyou 63 planting seed amount, after sowing, put dry Tanaka's water, the weed growth germinateing with seeding bed herbicide sealing end, while allowing rice shoot to 4 slice leaf left and right, spray 500～750 times of solution of 15% paclobutrazol, this relief rice shoot self-sow, such seedling short strong, tiller is many, anti-ly suddenly grow (overgrowing);

5) rice shoot self-sow, to 2～3 days Nei Lianshi instant nitrogenousfertilizers before Great Heat, grows to the stage in Great Heat and prepares to transplant;

6) transplant nitrogen fertilizer application in first 3～4 days, transplant in first 1 to 2 day with 500 times of solution sprays of 15% paclobutrazol, can transplant.

The breeding method of the multiple autumn rice shoot of above-mentioned hybrid rice, limewash soaks 6 hours for the seed described in step 1), as limewash for the seed of naming a person for a particular job at 7 in the morning or 9 soaks 6 hours.

Further, the breeding method of the multiple autumn rice shoot of above-mentioned hybrid rice, limewash is that the lime of 1 weight portion is dissolved in the water of 30 weight portions and forms described in step 1).

Further, the breeding method of the multiple autumn rice shoot of above-mentioned hybrid rice, the phosphorus potash fertilizer described in step 3) is the low nitrogenous fertilizer of high phosphorus.

Further, the breeding method of the multiple autumn rice shoot of above-mentioned hybrid rice, 10 kilograms every mu of the planting seed amounts described in step 3).

Compared with prior art, technical scheme provided by the invention is studied through field planting in a few years, and interval sowing is explored the breeding method that rice seedling is planted in the multiple autumn planting of Shanyou 63, realize the multiple autumn planting of Shanyou 63 rice varieties and planted, better brought into play the plantation advantage of Shanyou 63.The rice shoot bringing out with this seedling-cultivating method, exceeds 150～200 kilograms than every mu of other autumn variety output; And the Qualities Qf Ricr of planting is good, mouthfeel is good, is deeply subject to plantation product and consumer's dual welcome, simultaneously for alleviating the imbalance between supply and demand of industrial or agricultural land used resource.

Embodiment

Below in conjunction with embodiment; claim of the present invention is described in further detail; but do not form any limitation of the invention, the modification of any limited number of time of making within the scope of the claims in the present invention, still within claim protection domain of the present invention.

Embodiment 1

The breeding method that the invention discloses the multiple autumn rice shoot of a kind of hybrid rice, comprises the steps: successively

1), in later 3～5 days in Grain in Ear, as limewash for the Shanyou 63 seed of naming a person for a particular job at 7 in the morning or 9 soaks 6 hours, drain surperficial moisture content, after this, every 6 hours wetting seeds of water spray once, until Shanyou 63 seed breaks chest naturally; Described in step 1) described here, limewash is that the lime of 1 weight portion is dissolved in the water of 30 weight portions and forms.

3) sowing is executed phosphorus potash fertilizer to soil in first 3～4 days, preferably the low nitrogenous fertilizer of high phosphorus;

4) by 8～12 kilograms of sowings of every mu of Shanyou 63 planting seed amount, preferably 10 kilograms, sow complete, put dry Tanaka's water, the weed growth germinateing with seeding bed herbicide sealing end, while allowing rice shoot grow to 4 leaf left and right, spray 500～750 times of solution of 15% paclobutrazol, this relief rice shoot self-sow;

5) rice shoot self-sow, to 2～～3 days Nei Lianshi instant nitrogenousfertilizers before Great Heat, grows to the stage in Great Heat and prepares to transplant;

6) transplant nitrogen fertilizer application in first 3～4 days, transplant in first 1～2 day with 500 times of solution sprays of 15% paclobutrazol, can transplant.

The rice shoot that technical scheme seedling-cultivating method provided by the invention brings out, exceeds 150～200 kilograms than every mu of other autumn variety output; And the Qualities Qf Ricr of planting is good, and milled rice rate is high, mouthfeel is good, is deeply subject to plantation product and consumer's dual welcome.

Claims

1. a breeding method for the multiple autumn rice shoot of hybrid rice, is characterized in that, comprises the steps: successively

3) sowing is executed phosphorus potash fertilizer to soil in first 3～4 days;

4) by 8～12 kilograms of sowings of every mu of Shanyou 63 planting seed amount, after sowing, the weed growth germinateing with weed killer herbicide sealing end, while allowing rice shoot grow to 4 leaf left and right, spray 500～750 times of solution of 15% paclobutrazol, this relief rice shoot self-sow, such seedling short strong, tiller is many, anti-ly suddenly grow;

5) rice shoot self-sow, to 4～5 days Nei Lianshi instant nitrogenousfertilizers before Great Heat, grows to the stage in Great Heat and prepares to transplant;

2. the breeding method of the multiple autumn rice shoot of hybrid rice according to claim 1, is characterized in that, the seed described in step 1) soaks with limewash that within 6 hours, to be at 7 o'clock in the morning soak 6 hours to 9 limewash for Shanyou 63 seed of naming a person for a particular job.

3. according to the breeding method of the multiple autumn rice shoot of the hybrid rice described in claim 1 or 2, it is characterized in that, limewash is that the lime of 1 weight portion is dissolved in the water of 30 weight portions and forms described in step 1).

4. the breeding method of the multiple autumn rice shoot of hybrid rice according to claim 1, is characterized in that, the phosphorus potash fertilizer described in step 3) is the low nitrogenous fertilizer of high phosphorus.

5. the breeding method of the multiple autumn rice shoot of hybrid rice according to claim 1, is characterized in that, 10 kilograms every mu of the planting seed amounts described in step 3).