CN211152666U

CN211152666U - Saline and alkaline land lotus root field improvement system

Info

Publication number: CN211152666U
Application number: CN201922084573.8U
Authority: CN
Inventors: 周玉田
Original assignee: Shandong Merie Agricultural Development Ltd By Share Ltd
Current assignee: Shandong Merie Agricultural Development Ltd By Share Ltd
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-08-04
Anticipated expiration: 2029-11-26

Abstract

The utility model discloses a saline-alkali soil lotus root field improvement system, which comprises a planting unit and a drainage ditch (5); the planting unit comprises a saline-alkali layer (1), a buffering neutralization layer (2), a water storage layer (3) and a planting layer (4) from bottom to top in sequence; the drainage ditch (5) is arranged between the adjacent planting units; the saline-alkali layer (1) is saline-alkali soil, and bricks (6) are laid on the periphery of the saline-alkali layer; the buffering neutralization layer (2) is composed of gravel, gravel and carbon slag, and a circle of drainage bricks (7) are built around the buffering neutralization layer; the drain hole of the drain brick (7) faces the drain ditch (5); the water storage layer (3) is made of sand and soil, and bricks (6) are laid around the sand and soil; the planting layer (4) comprises a nutrition substrate layer (41) for providing nutrition and a lotus root field ridge (42), bricks (6) are laid on the outer side of the lotus root field ridge (42), and a lotus root pool (43) is arranged on the inner side. The utility model provides a lotus root field improvement system has effectively prevented saline and alkaline to planting the layer infiltration, has guaranteed the healthy growing environment of lotus root.

Description

Saline and alkaline land lotus root field improvement system

Technical Field

The utility model relates to a saline and alkaline land improvement technical field specifically is a saline and alkaline land lotus root field improvement system.

Background

The lotus root can be eaten raw or boiled and is a plant with high medicinal value. The lotus root contains starch, protein, vitamin C and oxidase. Eating fresh lotus root can clear heat, relieve restlessness, quench thirst and stop vomiting, and boiled lotus root can invigorate spleen and stimulate appetite. The lotus root powder can nourish the body and prevent internal bleeding, and people with weak and sick people can eat more lotus root for nourishing. The lotus root is a high-yield and high-efficiency aquatic economic crop, is a vegetable variety which is commonly eaten by people, is widely cultivated in various regions, and has the tendency of continuously expanding the cultivation area along with the adjustment of industrial structures in various regions.

The yellow river alluvial accumulation plain, which is originally a land for returning to the sea, is a saline-alkali land which is not developed and utilized. The saline-alkali soil is a new silt land formed by silt falling, and the silt falling process passes through the processes of starting water flow, then slowing down the flow, finally making water not flow and gradually drying. When the flow velocity is fast, the sand carrying capacity of water is strong, coarse sand can be carried, and along with the reduction of the flow velocity, gravel becomes small and then becomes fine sand-soil-fine mud. Finally forming a soil structure of sandy soil, fine mud and sandy soil, namely the uppermost layer of the soil is mixed sandy soil, the middle layer is a soil layer structure of a compact red mud plate, and the lower layer is mixed sandy soil.

The lotus roots planted in the saline-alkali soil is a good method for improving the saline-alkali soil in places with water sources. However, because some technologies are not overly sensitive, success often cannot be achieved in the first year. Although the lotus root water is placed in a lotus root field for enough water, the alkali is not well pressed and washed in the current year, so that the lotus root grows badly, the yield is low, even the lotus root cannot grow, and the economic benefit is poor.

The current techniques for improving saline-alkali soil mainly comprise: 1, physical methods including engineering methods such as concealed conduit alkali removal, alkali removal ditch excavation and the like, and hydraulic methods such as washing alkali with water; 2, chemical method, chemical neutralization method, ion exchange method and the like; 3, a biological method for increasing the humus of soil by planting saline-alkali tolerant plants. Thereby gradually improving the soil structure and reducing the influence of salt and alkali.

In heavy saline-alkali soil, particularly heavy saline-alkali soil with salt content more than 2%, multiple tests are carried out through the technology of discharging water pressure alkali and planting lotus roots, the root of unsuccessful discharge water pressure alkali is found in a soil structure of sandy soil, fine mud and sandy soil, the soil layer with a compact red mud plate in the middle layer has poor permeability, and the water pressure alkali is difficult to generate beneficial effects within one or two years, so that the soil structure needs to be improved.

In conclusion, how to realize the rapid dealkalization of the coastal saline-alkali soil, prevent the alkali return, improve the soil structure and the fertility of the plough layer, ensure the healthy growth environment of the lotus roots and improve the economic benefit is a problem to be solved urgently at present.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a saline and alkaline land lotus root field improvement system. The specific technical scheme is as follows:

A saline-alkali soil lotus root field improvement system comprises a planting unit and a drainage ditch; the planting unit comprises a saline-alkali layer, a buffering neutralization layer, a water storage layer and a planting layer from bottom to top in sequence; the drainage ditch is arranged between the adjacent planting units;

Building bricks around the salt-alkali layer; the brick is a common building brick; digging deep grooves around the saline-alkali soil according to the size of a target lotus root field, digging the deep grooves below a saline-alkali layer and reserving a certain depth to construct drainage ditches, digging surface soil above the saline-alkali layer, and building bricks around the reserved saline-alkali layer;

The buffering neutralization layer is composed of gravels, gravel and carbon slag, and a circle of drainage bricks are built around the buffering neutralization layer; the drain hole of the drain brick faces the drain ditch; the fillers such as gravel, gravel carbon residue and the like in the buffer neutralization layer are sharp in shape and do not lock water, so that saline-alkali pieces from the saline-alkali layer can be cut into easily-soluble fragments, the fragments are washed and dissolved by fresh water permeating from the buffer neutralization layer, and finally the fragments are discharged through the drainage bricks, so that the problem of alkali resistance is effectively prevented; the drainage brick is a brick with a drainage function as the name implies, and the drainage brick is used for draining accumulated water and is one of drainage means adopted in the urban road construction of China at present; the drainage brick is generally internally provided with a drainage channel, water permeating in the earth surface or soil enters the drainage channel and then is drained into a drainage ditch through a drainage hole at the tail end of the drainage channel, and accumulated water in roads or soil can be drained timely and effectively.

The water storage layer is made of sandy soil, and bricks are laid around the sandy soil; the sandy soil is soil formed by mixing more than 80% of sand and less than 20% of clay, is loose in soil quality, has good water and air permeability but poor water and fertilizer retention capacity, is laid on the buffering neutralization layer, can reduce resistance when fresh water permeates, and is beneficial to permeation of the fresh water to the buffering neutralization layer.

The planting layer comprises a nutrient substrate layer which provides nutrition, the lotus roots can grow in loam, sandy loam and clay loam, but humus rich in organic matters is most suitable, the requirement on the pH value of soil is 6-8.5, acidity is too high, soil hardening is not beneficial to the growth of the lotus roots, the lotus roots are too loose, the formed lotus roots are short in internodes, thick in skin and meat and poor in quality; arranging a lotus root field ridge around the nutrient matrix layer, building bricks on the outer wall of the lotus root field ridge, compacting the internal soil to form a lotus root pond, introducing fresh water into the lotus root pond, and requiring the water depth in the lotus root pond to be 0.5-0.6 m;

Preferably, the planting units are in a trapezoidal structure. The trapezoid is not easy to collapse, and the safety of the lotus root field structure in the process of continuously scouring and permeating water flow can be ensured. The drainage ditch is V type structure.

The utility model has the advantages that:

The utility model provides a by salt alkali layer, buffering in the lotus root field planting system of layer, water-storage layer, planting layer and the common formation in escape canal, when salt alkali upwards permeates in the saline and alkaline land, cut apart by the stone cinder in the buffer layer, then the fresh water that is pressed by the infiltration erodees in the middle and layer to in the escape canal outside the lotus root field is arranged to the drainage brick through both sides, effectively prevented saline and alkaline to planting the layer infiltration, guaranteed the healthy growth environment of lotus root.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Description of reference numerals:

1. A salt-alkali layer, 2, a buffer neutralization layer, 3, a water storage layer, 4, a planting layer, 5, a drainage ditch, 6, bricks, 7 and drainage bricks;

41. A nutrient matrix layer 42, a lotus root field ridge 43 and a lotus root pond.

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings and examples:

It should be noted that the structures, ratios, sizes, etc. shown in the drawings of the present specification are only used for matching with the contents disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, and any modifications of the structures, changes of the ratio relationships, or adjustments of the sizes should fall within the scope that the technical contents disclosed in the present invention can cover without affecting the functions and the achievable purposes of the present invention.

Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.

Example (b):

With reference to the attached figure 1, a saline-alkali soil lotus root field improvement system comprises:

Planting units and gutters 5; the planting unit comprises a saline-alkali layer 1, a buffering neutralization layer 2, a water storage layer 3 and a planting layer 4 from bottom to top in sequence; the drainage ditch 5 is arranged between the adjacent planting units;

Bricks 6 are built around the salt-alkali layer 1, and the bricks 6 are common building bricks;

The buffer neutralization layer 2 is composed of gravel, gravel and carbon slag, and a circle of drainage bricks 8 are built around the buffer neutralization layer; the drain hole of the drain brick 7 faces the drain ditch 5;

The water storage layer 3 is made of sandy soil, and bricks 6 are laid around the sandy soil;

The planting layer 4 comprises a nutrition substrate layer 41 for providing nutrition, lotus root field soil ridges 42 are arranged around the nutrition substrate layer 41, bricks 6 are built on the outer side of the lotus root field soil ridges 42, a lotus root pond 43 is arranged on the inner side of the lotus root field soil ridges, the nutrition substrate layer 41 is humus soil rich in organic matters, the pH value of the soil is 6-8.5, fresh water is introduced into the lotus root pond 43, and the water depth is 0.5-0.6 m.

Preferably, the planting units are in a trapezoidal structure; the drainage ditch 5 is of a V-shaped structure.

Many other changes and modifications can be made without departing from the spirit and scope of the invention. It is to be understood that the invention is not to be limited to the specific embodiments, and that the scope of the invention is defined by the appended claims.

Claims

1. A saline-alkali soil lotus root field improvement system is characterized by comprising a planting unit and a drainage ditch (5); the planting unit comprises a saline-alkali layer (1), a buffering neutralization layer (2), a water storage layer (3) and a planting layer (4) from bottom to top in sequence; the drainage ditch (5) is arranged between the adjacent planting units;

Bricks (6) are built around the salt-alkali layer (1); the brick (6) is a common building brick;

The buffering neutralization layer (2) is composed of gravel, gravel and carbon slag, and a circle of drainage bricks (7) are built around the buffering neutralization layer; the drain hole of the drain brick (7) faces the drain ditch (5);

The water storage layer (3) is made of sand and soil, and bricks (6) are laid around the sand and soil;

The planting layer (4) comprises a nutrition substrate layer (41) for providing nutrition, a lotus root field ridge (42) is arranged around the nutrition substrate layer (41), bricks (6) are built on the outer side of the lotus root field ridge (42), a lotus root pond (43) is arranged on the inner side of the lotus root field ridge, and fresh water is introduced into the lotus root pond (43).

2. The system for improving the lotus root field in saline-alkali soil according to claim 1, wherein the planting units are in a trapezoidal structure.

3. The improvement system of lotus root field in saline-alkali soil according to claim 2, wherein said drainage ditch (5) is of V-shaped structure.

4. The system for improving the lotus root field in the saline-alkali soil as claimed in claim 1, wherein the nutrient matrix layer (41) is humus rich in organic matters, and the pH value of the soil is 6-8.5.

5. The improvement system of the lotus root field in the saline-alkali soil according to claim 1, wherein the depth of the fresh water in the lotus root pond (43) is 0.5-0.6 m.