CN107810789A

CN107810789A - Utilize the method for the heavy salinized soil of salt-tolerant lawn grass quick improvement

Info

Publication number: CN107810789A
Application number: CN201711327308.7A
Authority: CN
Inventors: 傅金民
Original assignee: Ludong University
Current assignee: Ludong University
Priority date: 2017-12-13
Filing date: 2017-12-13
Publication date: 2018-03-20

Abstract

The invention discloses a kind of method using the heavy salinized soil of salt-tolerant lawn grass quick improvement, it is related to strand heavy salinized ground ecological management field.This method is：1. saline-alkali soil arranges；2. sod salt tolerant turf；3. maintenance management.The present invention is easy, inexpensive, efficiently quick；Growth is rapid, fast rapid-result level ground, reduces soil water evaporation, effectively suppresses soil salt and rises, beneficial to beach saline land quick improvement；The ground winter low temperatures such as Hebei China, Tianjin, Dongying, Jiangsu are adapted to, and there is excellent Landscape arrangement effect；Suitable for Hebei, Tianjin, Shandong, the heavy salinized area of Jiangsu Coastal ecological recovery, be particularly useful to the stabilization of the heavy salinized ecologically fragile areas ecosystem in strand.

Description

Utilize the method for the heavy salinized soil of salt-tolerant lawn grass quick improvement

Technical field

The present invention relates to strand heavy salinized ground ecological management field, more particularly to one kind are quick using salt-tolerant lawn grass The method for improveing heavy salinized soil.

Background technology

China possesses all kinds of using 5.5 hundred million mu of saline alkali land resource, heavy salinized 33,700,000 mu of ground, be it is maximum after make preparation for ploughing and sowing Ground resource.Ten ministries and commissions such as the joint Department of Science and Technology of National Development and Reform Committee, the Ministry of Finance in 2014 issue and implement jointly《On strengthening salt-soda soil The instruction of improvement》.No.1 Central File first in 2015, which is important to note that, " to implement Food Production science and technology engineering and saline and alkaline Ground transformation science and technology demonstration ".Domestic alkaline land improving Application way and technology be summed up approximately as：It is 1. physically improved；2. water Profit improvement；3. chemical modifying；4. biological modification.

In the measures of improvement saline-alkali soil, renovation dynamics, salt discharge effect from salt-soda soil and scope is promoted the use of See, in a variety of alkaline land improving technical methods, utilizing works Drainage of salt is an important hydrotechnics measure, only strong Full pumping equipment, other measures can just play one's part to the full.But in the restriction of water resource at this stage, environmental degradation aggravation and life Under the conditions of producing cost raising, great change will occur for the improvement pattern that the past consumes excessively merely by water resource.

Salt-tolerant lawn grass can not only beautify the environment, purify air, adjust miniclimate, reduce noise, conserve water and soil and Disaster etc. is prevented, and can effectively cover exposed table soil within a short period of time, moisture-salt transport is hindered, reduces ground moisture and steam Hair, reduce the salt content of topsoil.

The content of the invention

The purpose of the present invention be that overcome East China strand heavy salinized ground salt content is high, soil texture is poor, crop can not Growth, improvement cost are high and the problem of the time is long, there is provided a kind of using the heavy salinized soil of salt-tolerant lawn grass quick improvement Method.

The object of the present invention is achieved like this：

Specifically, this method comprises the following steps：

1. saline-alkali soil arranges

Sticked when for heavy salinized wet, hard when doing, ventilation, permeable bad feature, every mu uses the organic of 10-15 cubic meters Fertilizer, including barnyard manure, compost and peat, deep plough 10-30 centimetres, pay attention to prepartion of land during site preparation and fertilization, loose table soil are ploughed, with roller bearing pressure It is flat, make its consolidation, must be filled and led up at hollow, otherwise ponding, Bermuda grass can be caused dead, be unfavorable for trimming again；

2. sod salt tolerant turf

The 6-8 months are rainy season, and soil salt content reduces, is the optimum season for sodding salt tolerant turf heavy salinizedly, turf is cut into （30-50cm）×（30-100cm）Divot, it is unsuitable blocked up with native 1-2cm, it is also inconvenient when sodding in order to avoid too heavy, sod During turf, turf seam crossing should be made not stay distance, turf seam crossing is filled out with fine earth；With the rolling of 500-1000kg or so weights on careless face Cylinder presses and scrapes, and makes careless face equal with surrounding soil face, and turf touches with soil；

3. maintenance management

All should fully it be watered before laying turf and after sodding；According to salt-soda soil nutrient situation and Turfgrass Growth needs, really Determine nitrogen phosphoris and potassium fertilizer ratio, compounding application trace element, carry out rational application of fertilizers, N：P：K=1：2：2；Water of surviving the winter is poured before facing frost, in advance Anti- spring arid, ground temperature is stabilized, strengthen the cold tolerance of turfgrass；The accumulation of salt in the surface soil phase in spring pours permeable, the suppression accumulation of salt in the surface soil.

Working mechanism：

Contained salinity in alkaline land soil underearth and underground water, because evaporation from land acts on, with soil capillarity The waterborne of contained salinity is raised to surface layer, after moisture evaporation, salinity is stayed in upper soll layer, build up and form salt-soda soil （Soil）.Salt tolerant lawn grass soil texture is fine and close, and establishment speed is fast, can quickly form surface vegetation, can be effective within a short period of time Exposed table soil is covered, moisture-salt transport is hindered, reduces ground moisture evaporation, reduce the salt content of topsoil

The present invention has following advantages and good effect：

It is 1. easy, inexpensive, efficiently quick；

2. growth is rapid, fast rapid-result level ground, soil water evaporation is reduced, effectively suppresses soil salt and rises, beneficial to beach saline land Quick improvement；

3. adapting to the ground winter low temperatures such as Hebei China, Tianjin, Dongying, Jiangsu, and there is excellent Landscape arrangement effect；

4. suitable for Hebei, Tianjin, Shandong, the ecological recovery in the heavy salinized area of Jiangsu Coastal, strand severe salt is particularly useful to The stabilization of the alkali ecologically fragile areas ecosystem.

Brief description of the drawings

Fig. 1-1 is the preceding picture of embodiment 1；

Fig. 1-2 is the rear picture of embodiment 1；

Fig. 2-1 is the preceding picture of embodiment 2；

Fig. 2-2 is the rear picture of embodiment 2；

Fig. 3-1 is the preceding picture of embodiment 3；

Fig. 3-2 is the rear picture of embodiment 3.

Embodiment

Described in detail with reference to embodiment：

First, embodiment

1st, embodiment 1：

1）Construction seasons are in July, 2014, and place is in Tianjin Dagang Oilfield；

2）Soil be strand heavy salinizedly, soil salt content 2.1%, 13 cubic metres of cow dungs of every mu of administration as base fertilizer, with reference to 30 centimetres of soil is ploughed, cow dung is mixed into soil, raked；

3）Salt-tolerant lawn grass is sodded, turf is 33-100 centimetres of stick, closely sods, leaves no gaps as far as possible, after sodding, uses iron Spade makes real, and keeps ground moistening, until root system is established；

4）Pour freeze-up water in by the end of November, 2014, spring in 2014 turn green before pour permeable, the season of growth monthly applies composite fertilizer NPK：17-20-8,20 kgs/acre；

5）Grass is cut in strict accordance with 1/3 principle（I.e.：Every time during trimming, the blade-section cut should be less than the 1/3 of blade total amount）, greatly Cut within about 7 days grass once, cutting-height 3cm；

6）Effect assessment：

Such as Fig. 1-1,1-2；

Salt-tolerant lawn carelessly sod 3 days and take root by skin, after 15 days, salt tolerant turfgrass survival rate to more than 90%；

Salt-tolerant lawn carelessly level ground 2014-2015 safe overwinterings, turn green good, landscape effect is good；

Carelessly level ground spends safely 2014 to salt-tolerant lawn, 2015, accumulation of salt in the surface soil phase spring in 2016；

Soil salt content significantly reduces, content of organic matter increase, structural improvement.

2nd, embodiment 2：

Construction seasons are summer, and place is in Dongying city Long Ju towns.

1）Soil is strand Sha Xing salt-soda soils, soil salt content 1.1%.13 cubic metres of cow dungs of every mu of administration as base fertilizer, With reference to 30 centimetres of soil is ploughed, cow dung is mixed into soil, raked；

2）Salt-tolerant lawn grass is transplanted, per cave about 15-20 grass blades, according to 1：5 ratios are transplanted, and keep ground moistening, Zhi Daogen System establishes；

3）Pour freeze-up water in by the end of November, 2014, spring in 2014 turn green before pour permeable, the season of growth monthly applies composite fertilizer NPK：17-20-8,20 kgs/acre；

4）Grass is cut in strict accordance with 1/3 principle, about and does not cut within 7 days grass once, cutting-height 3cm；

5）Effect assessment：

Such as Fig. 2-1,2-2；

After salt-tolerant lawn grass plant 15 days, survival rate to more than 90%, September coverage reaches more than 90%；

3rd, embodiment 3：

1）Construction seasons are in July, 2016, and place is in Hebei province；

2）Soil be strand heavy salinizedly, soil salt content 3.1%.13 cubic metres of cow dungs of every mu of administration as base fertilizer, with reference to 30 centimetres of soil is ploughed, cow dung is mixed into soil, raked；

3）Salt tolerant turfgrass is sodded, turf is 33-100 centimetres of stick, closely sods, leaves no gaps as far as possible.After sodding, spade is used Make real, keep ground moistening, until root system is established；

5）Effect assessment：

Such as Fig. 3-1,3-2；

Salt-tolerant lawn carelessly sod 3 days and take root by skin, after 15 days, salt-tolerant lawn grass survival rate to more than 95%；

Claims

A kind of 1. method using the heavy salinized soil of salt-tolerant lawn grass quick improvement, it is characterised in that：

1. saline-alkali soil arranges

Sticked when for heavy salinized wet, hard when doing, ventilation, permeable bad feature, every mu uses the organic of 10-15 cubic meters Fertilizer, including barnyard manure, compost and peat, deep plough 10-30 centimetres, pay attention to prepartion of land during site preparation and fertilization, loose table soil are ploughed, with roller bearing pressure It is flat, make its consolidation, must be filled and led up at hollow, otherwise ponding, salt tolerant Bermuda grass can be caused dead, be unfavorable for trimming again；

2. sod salt tolerant turf

The 6-8 months are rainy season, and soil salt content reduces, and is the optimum season for sodding salt tolerant Bermuda grass turf heavy salinizedly, by grass Skin is cut into（30-50cm）×（30-100cm）Divot, it is unsuitable blocked up with native 1-2cm, in order to avoid too heavy, also not side when sodding Just, when sodding turf, turf seam crossing should be made not stay distance, turf seam crossing is filled out with fine earth；It is left with 500-1000kg on careless face Right heavy roller presses and scrapes, and makes careless face equal with surrounding soil face, and turf touches with soil；

3. maintenance management

All should fully it be watered before laying turf and after sodding；According to salt-soda soil nutrient situation and Turfgrass Growth needs, really Determine nitrogen phosphoris and potassium fertilizer ratio, compounding application trace element, carry out rational application of fertilizers, N：P：K=1：2：2；Water of surviving the winter is poured before facing frost, in advance Anti- spring arid, ground temperature is stabilized, strengthen the cold tolerance of turfgrass；The accumulation of salt in the surface soil phase in spring pours permeable, the suppression accumulation of salt in the surface soil.