CN101543162B

CN101543162B - Rapid giant reed reproducing method

Info

Publication number: CN101543162B
Application number: CN200910013835XA
Authority: CN
Inventors: 郑浩; 李锋民; 王震宇
Original assignee: Ocean University of China
Current assignee: Ocean University of China
Priority date: 2009-01-09
Filing date: 2009-01-09
Publication date: 2010-12-01
Anticipated expiration: 2029-01-09
Also published as: CN101543162A

Abstract

The invention relates to a rapid giant reed reproducing method which belongs to the technical field of marsh ecological restoration. To solve the problems of high reproducing technical cost and low survival rate of the giant reed in the marsh ecological system restoring process, the invention disclose a rapid giant reed reproducing method. In the period from June to October of every year, healthy giant reeds of over 2 meters in height are selected, and root stocks and ground stems of the giant reeds are together dug out for spare use. After the land is leveled, the giant reed plants are planted. In the planting process, the included angle between the ground stem of the giant reed and the ground is 0 to 45 DEG, the root stock of the giant reed is completely buried in the soil, and the ground stem is bent to be parallel to the ground and is buried by soil of 10-30 cm deep at the leaf node part every few leaf nodes. After being planted, the giant reed plants are irrigated, new leaf buds can grow on the leaf nodes after about 5 days, and the new bud can be 1 to 2 meters high in the first year and about 3 meters in the second year. The invention has simple giant reed planting method, rapid giant reed reproducing speed, high survival rate of giant reed of up to 98percent and greatly-reduced giant reed planting cost.

Description

A kind of rapid giant reed reproducing method

Technical field

The invention belongs to Wetland ecological recovery technique field, be specifically related to a kind of rapid giant reed reproducing method.

Background technology

Giantreed (Arundo donax L) has another name called Lu Dizhu, for the grass family giantreed belongs to herbaceos perennial, the root-like stock that tool is sturdy.The giantreed well developed root system, root-like stock is deep-rooted; Stem is grown thickly, and stalk is upright, and high 2～6m often has branch; Blade is flat, long 30～60cm, wide 2～5cm; Give birth on circular cone titbit top, long 30～60cm, small ear and Xiao Hua Mi Shengbaimao; 9～November of flowering fruit bearing stage.

Giantreed is rich in fiber, and its fibre length is only second to wood pulp, is first-class paper making raw material.The giantreed rhizome is pharmaceutically acceptable, and the effect of clearing heat-fire, clearing stomach antiemetic is arranged.Giantreed is a kind of Wetland ecological rehabilitation plant that the researcher finds through research screening for many years.Its adaptive faculty is strong, to saline and alkaline, drought and waterlogging, barren certain endurance is arranged all, and does not find damage by disease and insect, is a kind of plant of managing simple saving of labor.Than serious area, can absorb and accumulate the heavy metal ion of particular types in soil pollution, rehabilitating soil is had certain effect by the plantation giantreed.Strand wetland soil salinization and alkalization height, ecological environment frailty especially arrives annual spring, because arid, wind in addition short of rain are many, it is serious to desertify, strand wetland area sharply reduces.Behind the establishing in large scale giantreed, can form in the giantreed and only be with, help the improvement of saline land, sand ground, improve vegetation coverage, improve the ecological environment, well protect the strand wetland, be that Ecological Environment and Developing Ecological Tourism is created good condition.Suitably plant giantreed in the wet land system, can obtain good landscape effect.The end of spring and the beginning of summer, the stem stalk leave that sprouts, Yu Mi and dark green, verdant tall and straight as bamboo; In the time of the year when autumn changes into winter, flaxen panicle is extracted on the plant top out, and the feather of bird flickers in gentle breeze seemingly.

The modes of reproduction of giantreed has root-like stock plantation, terrestrial stem cuttage plantation and artificial breeding to transplant three kinds at present.Though root-like stock plantation survival rate height, the amount of labour is too big, and cost is too high.Low and the conditional request harshness to external world of terrestrial stem cuttage plantation survival rate.The giantreed percentage of seedgermination is low, is the maximum constraints factor of giantreed seedling-cultivating method.

Summary of the invention

Purpose of the present invention is exactly the defective that exists at artificial cultivation giantreed technology, and a kind of cultivation of giantreed quickly and easily propagation method is provided.

Technical scheme of the present invention is: in annual June-October, select the healthy and strong giantreed of plant height more than 2 meters as rice shoot, dig out together with the whole strain of root-like stock, the giantreed root-like stock is implanted smooth seedbed after good, the angle in giantreed terrestrial stem and seedbed is advisable for the 0-45 degree when planting, and the curved ground that is labelled to of terrestrial stem is buried soil every 2-10 leaf segment with pressure and buried terrestrial stem 10-30 centimetre, the position of burying soil is positioned at the leaf segment part, buried depth 5-10 centimetre.The cultivation spacing in the rows is a 1-2 rice, and line-spacing is a 1-3 rice, and the first place joins.Plant and irrigate after finishing, terminal bud 5-20 centimeters is surfaced get final product; 1 year 6-10 month,, imbed in the soil according to said method pressing the height that grows on the giantreed rice shoot bury to reach that new talent overwhelms to both sides more than 1 meter in 1 year.Irrigate then, keep 0-10 centimetre of water layer.

The present invention has two big advantages, and the one, save rice shoot; The 2nd, enlarge cultivated area fast; and it is simple to have cultivation method; survival rate is up to 98%; planting cost reduces greatly; newborn giantreed quality better, output height, soil property require low; be particularly suitable in the cultivation of the relatively poor barren beach of nutrient condition, wetland, and be widely used in the Wetland ecological reparation and gardens are made in the scape greening work, to improving the ecological environment, improving vegetation protection and environmental protection is significant.

Embodiment

Embodiment 1

In June at new Xue of Nansi Lake river artificial swamp, the healthy and strong giantreed of selecting 2 meters of plant heights is as rice shoot, dig out together with the whole strain of root-like stock, the giantreed root-like stock is implanted smooth seedbed after good, the angle in giantreed terrestrial stem and seedbed is 40 degree when planting, and the curved ground that is labelled to of terrestrial stem is buried soil every 3 leaf segments with pressure and buried 10 centimetres of terrestrial stem, the position of burying soil is positioned at the leaf segment part, 5 centimetres of buried depths.Plant and irrigate after finishing, keep 0 centimetre of water layer, make terminal bud locate to surface more than 6 centimetres.The leaf segment place can grow sprouting after 7 days, and average every strain germinative number is 12, and the sprouting average height reaches 18 centimetres after 10 days, and average height reaches 70 centimetres after two months, and average strain directly reaches 3.8 millimeters.

Will deep plough in the plant soil of giantreed, the tilling depth standard is 25 centimetres, with good conditionsily carries out before will being arranged in the winter, and can freeze to death so a collection of worm's ovum of surviving the winter and germ are of great benefit to the control of damage by disease and insect.Accomplish fluently the rand ridge, will fix escape canal simultaneously.In the early stage of growth, draining regularly prevents from that water level from surpassing to require height.Generally not draining of later stage, but if meet continuous rainfall, for protecting ridge safety, suitably draining still can not all drain water.After the giantreed rice shoot is planted, in time pour water, water layer should not be dark excessively, is advisable for 0-10 centimetre.If water level is dark excessively, the giantreed growth rate slows down, and softization occur, causes output to descend, and has a strong impact on income.Otherwise reedization will occur, increase output and income.

After the giantreed rice shoot was pressed and buried, leaf segment place, 6 days left and right sides can grow sprouting, and average every strain germinative number is 12-20, and the sprouting height can reach 1-2 rice then, can reach about 3 meters in 1 year.After pressure was buried once more in 1 year, the stand density of giantreed can reach every square metre of about 75 strains.

Every mu of this method is with seedling 400-700 strain, and saving rice shoot than traditional root-like stock propagation method, near half is many.The giantreed rice shoot of being pressed, can both the branch evil go out a large amount of new seedling and new rhizome every year.

Embodiment 2

In August at new Xue of Nansi Lake river artificial swamp, the healthy and strong giantreed of selecting 3 meters of plant heights is as rice shoot, dig out together with root-like stock, with giantreed more the shape stem implant smooth seedbed after good, giantreed terrestrial stem and seedbed angle are 0 degree when planting, and terrestrial stem is curved to be labelled to ground, buries 15 centimetres of terrestrial stem every 5 leaf segments with soil, 10 centimetres of buried depths, the position of burying soil is positioned at the leaf segment part.Spacing in the rows is 1 meter when planting, and line-spacing is 2.5 meters, and giantreed is the first to link to each other.Plant and irrigate after finishing, make the terrestrial stem top locate to surface more than 20 centimetres.The leaf segment place can grow sprouting in 5 days, and average every strain germinative number reaches 20, and the sprouting average height reaches 35 centimetres after 10 days, and average height reaches 95 centimetres after two months, and average strain directly reaches 4.5 millimeters.Overwhelm the rice shoot that the height that grows on the rice shoot that the previous year last year, pressure was buried reaches more than 1 meter in July, second to both sides, press according to same method and bury.Keep 5 centimetres of water levels.After one month, average plant height reaches 30 centimetres, and average strain directly reaches 3.2 millimeters, and stand density reaches every square metre 80 strain.

Claims

1. a rapid giant reed reproducing method is characterized in that this method comprises the steps:

In annual June-October, select the healthy and strong giantreed of plant height more than 2 meters as rice shoot, dig out together with the whole strain of root-like stock, the giantreed root-like stock is implanted smooth seedbed after good, and the angle in giantreed terrestrial stem and seedbed is advisable for the 0-45 degree when planting, and the curved ground that is labelled to of terrestrial stem is buried soil every 2-10 leaf segment with pressure and buried terrestrial stem 10-30 centimetre, the position of burying soil is positioned at the leaf segment part, buried depth 5-10 centimetre; The cultivation spacing in the rows is a 1-2 rice, and line-spacing is a 1-3 rice, and the giantreed rice shoot is end to end; Plant and irrigate after finishing, and keep terminal bud 5-20 centimeters is surfaced; 1 year 6-10 month, pressing the height that grows on the giantreed rice shoot bury to reach that new talent overwhelms to both sides more than 1 meter in 1 year, imbed in the soil according to said method again, irrigate then and keep water layer.

2. propagation method according to claim 1 is characterized in that above-mentioned maintenance water layer is in the 0-10 cm range.