CN102763554B

CN102763554B - Asexual propagation and cultivation method of podostemales No.3 which is phalaris arundinacea

Info

Publication number: CN102763554B
Application number: CN201210277015.3A
Authority: CN
Inventors: 白史且; 李达旭; 张昌兵; 鄢家俊; 游明鸿; 刘刚; 邓永昌
Original assignee: Sichuan Academy of Grassland Science
Current assignee: Sichuan Academy of Grassland Science
Priority date: 2012-08-06
Filing date: 2012-08-06
Publication date: 2015-06-03
Anticipated expiration: 2032-08-06
Also published as: CN102763554A

Abstract

The invention discloses an asexual propagation and cultivation method of podostemales No.3 which is the phalaris arundinacea. The sowing method which is used for the rhizome propagation is as follows: preparing soil, digging shallow trenches of 8-10cm, cutting the root stocks of the phalaris arundinacea with two buds, putting into the shallow trenches by the row and line spacing of 45-50cm, earthling up at a thickness of 6-8cm, and watering. The podostemales No.3 which is the phalaris arundinacea is perennial sparse high bush and can grow for 6-8 years generally. By sowing and cultivating the podostemales No.3 which is the phalaris arundinacea, the yield of the pasture and the seeds are both low in the second year, and the yield of the pasture and the seeds can be stable and high in the third year. By adopting the asexual propagation, the yield of the pasture and the seeds can be stable and high in the second year.

Description

River grass draws No. 3 Phalaris grass asexual propagation cultivation method

Technical field

The present invention relates to agricultural technology field, in particular a kind of river grass draws No. 3 Phalaris grass asexual propagation cultivation method.

Background technology

" river grass draws No. 3 " Phalaris grassland place of production U.S., introduces a fine variety Aba Prefecture Hongyuan County, Sichuan Province for 1979.Introduction and acclimatization is carried out in Sichuan Province Grassland research institute Hongyuan selection experiment base, and successively in Dangxiong County, Tibet, Ganzi Daofu County, the area such as Dardo County and Aba Prefecture Mao County carry out regional test and production test, within 2007, by the authorization of national grass product kind validation board, formally name as " river grass draws No. 3 " Phalaris grass.The sturdy prosperity of root-like stock, tillers many, and stem is sturdy, circular, and Chang Dansheng or minority are grown thickly, uprightly, and Glabrous, more than Gao Keda 150cm.Blade is flat roomy.Panicle is closely long and narrow forms spike, seed spindle, taupe, glossy.125 ~ 138 days breeding times, regeneration power is strong, ripe neat and consistent of earing.Waterlogging, cold-resistant, resistance against diseases is strong, wide adaptability.Initial bloom stage cradles, and palatability is good, ox, sheep eating, and fresh grass can ensiling, and hay can be processed into concentrated feed.Be of high nutritive value, crude protein content and this landlord plant grass seeds siberian wildrye quite, the ecological herbage being excellent forage grass and conserving water and soil.The conventional seed growing method of employing in the past, because Phalaris grass ripening rate is low, the breeding cycle is long, causes spread to breed difficulty.

Summary of the invention

Technical problem to be solved by this invention provides a kind of river grass to draw No. 3 Phalaris grass asexual propagation cultivation method for the deficiencies in the prior art.

Technical scheme of the present invention is as follows:

A kind of river grass draws No. 3 Phalaris grass asexual propagation cultivation method, and seeding method adopts Propagation of Rhizomes: after readjustment of field plot, open 8-10cm shallow ridges, shear the Phalaris grass root-like stock containing 2 bud points, keep flat in shallow ridges with strain, line-spacing 45-50cm, earthing 6-8cm, then water permeable.

Described river grass draws No. 3 Phalaris grass asexual propagation cultivation method, and field management comprises:

1) apply fertilizer: seedling stage or period of seedling establishment Nitrogen Top Dressing 10kg/ mu; Tillering and jointing stage imposes ammonium phosphate composite fertilizer 7.5kg/ mu; Later after cradling or herding, then mend nitrogen fertilizer application 10kg/ mu, ammonium phosphate composite fertilizer 7.5kg/ mu;

2) removal of impurities: weed a garden before and after First Year is tillered and when turning green early spring;

3) irrigate: the place having irrigation conditions, should combine to topdress in the shooting stage and pour water;

4) pest control: after mythimna separata hazard symptoms appears in blade, should spray mythimna separata insecticide, can prevent and treat infringement within mythimna separata 3 ~ 5 length of time.

Described river grass draws No. 3 Phalaris grass asexual propagation cultivation method, seedtime: the high and cold area sowing time be mid-April to mid-May, be no more than mid-June at the latest.

" river grass draws No. 3 " Phalaris grass system Perennual, top grass, generally can grow 6-8.If sowing cultivation, Second Year herbage and seed production are all lower, and the 3rd year herbage and seed production could stable yields and high yields.Adopt rhizome vegetative propagation, Second Year herbage and seed production just can stable yields and high yields.

Embodiment

Below in conjunction with specific embodiment, the present invention is described in detail.

1, readjustment of field plot

Sowing plot should be ploughed deeply autumn.Sow first 20 days, with all green plantss in raw type weed killer herbicide removing plot of going out, and kill except the insect in soil.After one week, with plough real tillage, degree of depth 18cm ~ 20cm.After turning over, use 18000kg/hm ²~ 22500kg/hm ²base manure made by barnyard manure after becoming thoroughly decomposed, is evenly sprinkling upon surface, again with heavy duty harrow smooth, light rake rake fine earth ground.

2, land occupation condition

1) adaptation zone: all can grow in the temperate zone of height above sea level 1650m ~ 3800m to cold temperate regions;

2) soil: meadow soil, requires soil separate 0.2cm during sowing;

3) temperature: at the low temperature energy safe overwintering of-30 DEG C.Seed suitable germination temperatures is 8 DEG C ~ 12 DEG C, needs accumulated temperature 1500 DEG C ~ 2000 DEG C from turning green to maturation.

4) moisture: can dry farming cultivation in the area of annual precipitation 350mm ~ 700mm; High yield can be realized there being the ground of irrigation conditions.During sowing, plow layer water content requires to reach 35% ~ 40%.

3, seedtime

The high and cold area sowing time is that mid-April is to mid-May.Be no more than mid-June at the latest.

4, seeding method-Propagation of Rhizomes

After readjustment of field plot, open 8 ~ 10cm shallow ridges.Shear the Phalaris grass root-like stock containing 2 bud points, keep flat in shallow ridges with strain, line-spacing 45 ~ 50cm, earthing 6 ~ 8cm, then water permeable.7 ~ 10 days, 70% rhizomatic bud point director went out 3 ~ 5 adventive root, and started to germinate; After 15 days, whole root-like stock grows adventive root and seedling.

5, field management

1) apply fertilizer: seedling stage or period of seedling establishment Nitrogen Top Dressing 10kg/ mu; Tillering and jointing stage imposes ammonium phosphate composite fertilizer 7.5kg/ mu; Later after cradling or herding, then mend nitrogen fertilizer application 10kg/ mu, ammonium phosphate composite fertilizer 7.5kg/ mu.

2) removal of impurities: weed a garden before and after First Year is tillered and when turning green early spring.

3) irrigate: the place having irrigation conditions, should combine to topdress in the shooting stage and pour water.

6, effect

1) 7-10 days, 70% rhizomatic bud point director goes out 3-5 root adventive root, and starts to germinate; After 15 days, whole root-like stock grows adventive root and seedling.

2), in 2 ~ 5 years after Propagation of Rhizomes, initial bloom stage cradles hay yield can reach 12000kg/hm every year ²above, there is good Yield potential, the problem run in the actual production such as effectively solve Northwest Sichuan alpine pastoral regions plantation Phalaris grass Second Year forage yield and seed production is low, the reproduction speed that river grass draws No. 3 Phalaris grass can be improved fast, for this grass provides technical support and guarantee at the large-scale promotion application of China Qinghai-xizang Plateau Region.

7, utilize

Initial bloom stage cradles utilization, late August next year maturing stage sowing, seed production can reach 675kg/hm ²above.

Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to claims of the present invention.

Claims

1. river, high and cold area grass draws No. 3 Phalaris grass asexual propagation cultivation method, comprises the following steps:

A1, sowing time: seed suitable germination temperatures is 8 DEG C-12 DEG C, the sowing time be mid-April to mid-May, be no more than mid-June at the latest;

A2, geographic range: temperate zone to the cold temperate regions of height above sea level 1650m ~ 3800m, minimum temperature are not less than-30 DEG C, ensure that Phalaris grass is turned green to ripening period accumulated temperature 1500 DEG C ~ 2000 DEG C;

A3, readjustment of field plot

Sowing plot should be ploughed deeply autumn; Sow first 20 days, with all green plantss in raw type weed killer herbicide removing plot of going out, and kill except the insect in soil; After one week, with plough real tillage, degree of depth 18cm ~ 20cm; After turning over, use 18000kg/hm ²~ 22500kg/hm ²base manure made by barnyard manure after becoming thoroughly decomposed, is evenly sprinkling upon surface, then use heavy duty harrow smooth, light rake rake fine earth ground, and soil is meadow soil, and during sowing, soil separate reaches 0.2cm, and during sowing, plow layer water content requires to reach 35%-40%;

A4, seeding method-Propagation of Rhizomes

After readjustment of field plot, open 8cm ~ 10cm shallow ridges; Shear the Phalaris grass root-like stock containing 2 bud points, keep flat in shallow ridges with strain, line-spacing 45cm ~ 50cm, earthing 6cm ~ 8cm, then water permeable; 7 days ~ 10 days, 70% rhizomatic bud point director went out 3 ~ 5 adventive root, and started to germinate; After 15 days, whole root-like stock grows adventive root and seedling;

A5, field management

1) apply fertilizer: seedling stage or period of seedling establishment Nitrogen Top Dressing 10kg/ mu; Tillering and jointing stage imposes ammonium phosphate composite fertilizer 7.5kg/ mu; After cradling or herding, mend nitrogen fertilizer application 10kg/ mu, ammonium phosphate composite fertilizer 7.5kg/ mu;

2) removal of impurities: weed a garden before and after First Year is tillered and when next year, early spring turned green;

3) irrigate: carry out dry farming cultivation in the area of annual precipitation 350mm-700mm; There is the place of irrigation conditions in all the other areas, combine to topdress pour water in the shooting stage;

4) pest control: after mythimna separata hazard symptoms appears in blade, sprays mythimna separata insecticide within mythimna separata 3 ~ 5 length of time.