CN1568643A - High efficiency planting method for improving common saline land and serious saline land of dig-built type platform field - Google Patents

Abstract

The invention discloses a highly effective planting comprising the steps of, shoveling with a ditching machine and raising the field, controlling the elevated ground surface height to 1.6-2.0m, stabilizing the groundwater under the trench water level, pumping alkali with fresh water in spring, and conducting salt washing and desalination with river water. The method can reduce the salt content from 0.4-1.0% to below 0.2%.

Description

Dig-built type raised fields improvement common saline land and serious saline land and high-efficiency grow method

One, technical field:

The invention belongs to agricultural planting technique, be applicable to that mainly coastal region carries out a kind of high-efficiency grow method of dig-built type raised fields improvement common saline land and serious saline land.

Two, background technology:

At coastal region, the common saline land and serious saline land improvement is the key subjects of numerous scientific workers' research always, some improvement ways and measure in the past all do not reach the effect of thorough radical cure, prior art does not also form new raised fields method by mechanical means on heavy saline, do not reach improvement before the soil plough horizon salt content reduce to record below 0.2% by 0.4-1.0%.

Three, summary of the invention:

According to the situation on above coastal region geavy salt, alkali ground, the invention provides a kind of dig-built type raised fields improvement common saline land and serious saline land and high-efficiency grow method, solve the method for radical cure heavy saline.The present invention adopts trencher shoveling raised fields, make the soil plough horizon after the exploitation have suitable hollow billet space of ratio and ventilation space, the dig-built type raised fields is raised ground level and is as the criterion at 1.6-2.0 rice, and underground latent water is stabilized under the bar ditch water level, effectively reduces the underground latent water buried depth; In addition, adopt the hydraulic pressure alkali of storing fresh water spring,, effectively reduce the safeguard of soil plough horizon salt content with twice desalinization of soil by flooding or leaching desalination of river.Realize exploitation then, volume increase then obviously.

The invention has the beneficial effects as follows, then the exploitation, yield increase effect is big then, can with the soil plough horizon salt content by the exploitation before 0.4-1.0% reduce to below 0.2%.

Four, embodiment:

According to said method, carrying out underground latent water mean value during exploitation measures, generally be determined as in annual 7-9 month, with the underground latent water is to raise height according to definite raised fields, generally raises height and is as the criterion at 1.6-2.0 rice, adopts trencher to cut the earth to lift and adds, do not destroy soil aggregate, make the soil total porosity surpass 50%, aeration porosity＞10% makes the soil plough horizon after the exploitation have suitable hollow billet space of ratio and ventilation space.In addition, the water of storing fresh water makes the row's of filling facility supporting simultaneously, carry out twice fresh water desalinization of soil by flooding or leaching desalination in spring, the soil plough horizon salt content is reduced to below 0.2% by 0.4-1.0%, and the kind method for planting of cropping index such as increasing dish cotton, melon cotton, jujube cotton is adopted in its efficient plantation, improves the unit benefit.Reach the radical cure common saline land and serious saline land.

Claims (1)

1, dig-built type raised fields improvement common saline land and serious saline land and high-efficiency grow method, it is characterized in that adopting trencher to cut the earth and lift the field, the dig-built type raised fields is raised ground level and is as the criterion at 1.6-2.0 rice, underground latent water is stabilized under the bar ditch water level, adopt the hydraulic pressure alkali of storing fresh water spring, quote twice desalinization of soil by flooding or leaching desalination of river, adopt the kind method for planting of the cropping index that increases dish cotton, melon cotton, jujube cotton.