Root salt control method with ceramsite percolation layer and application of root salt control method with ceramsite percolation layer to planting melia azedarach in saline-alkali land

A technology of percolation layer and saline-alkali land is applied in the field of agricultural utilization, which can solve the problems that the soil salt content cannot well control the suitable growth range of plants, the improvement effect of soil physical and chemical properties is poor, and the adjustment effect of soil ion concentration is poor. Achieving good improvement effect, good adjustment effect and high safety effect

Inactive Publication Date: 2016-11-16
SHANDONG SUNWAY LANDSCAPE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 1. The effect of improving the physical and chemical properties of soil in saline-alkali land is poor;
[0007] 2. The salt content in the soil cannot be well controlled within the range suitable for plant growth;
[0008] 3. Poor adjustment effect

Method used

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  • Root salt control method with ceramsite percolation layer and application of root salt control method with ceramsite percolation layer to planting melia azedarach in saline-alkali land
  • Root salt control method with ceramsite percolation layer and application of root salt control method with ceramsite percolation layer to planting melia azedarach in saline-alkali land
  • Root salt control method with ceramsite percolation layer and application of root salt control method with ceramsite percolation layer to planting melia azedarach in saline-alkali land

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Example 1 A root salt control method using ceramsite percolation layer

[0037] Step 1 Selection of saline-alkali land

[0038] The moisture content of the soil in the selected saline-alkali land is 12.1-15.2%, the total porosity of the soil is 34.2-40.7%, the pH value of the soil is 8.1-9.2, the salt content of the soil is 0.68-0.81%, and the bulk density of the soil is 1.43 ~1.51g / cm 3 , Cl - The content is 3.76g / kg, Na + The content is 2.12g / kg.

[0039] Step 2 Excavate the saline-alkali land for planting

[0040] Dig the planting soil to a depth of 138cm, compact the bottom, lay an impermeable membrane on the bottom, and build a waterproof retaining wall around it.

[0041] Step 3 Laying the salt drainage layer

[0042] Concealed pipes are buried at the bottom of the excavated planting ground. The hidden pipes are made of 110 diameter PVC perforated corrugated pipes, the thickness of the outer sand filter material is not less than 8 cm, the gradient is 0.5‰, ...

Embodiment 2

[0054] Embodiment 2 A kind of root salt control method that adopts ceramsite percolation layer

[0055] Step 1 Selection of saline-alkali land

[0056] The moisture content of the soil in the selected saline-alkali land is 12.1-15.2%, the total porosity of the soil is 34.2-40.7%, the pH value of the soil is 8.1-9.2, the salt content of the soil is 0.68-0.81%, and the bulk density of the soil is 1.43 ~1.51g / cm3, the content of Cl- is 3.76g / kg, and the content of Na+ is 2.12g / kg.

[0057] Step 2 Excavate the saline-alkali land for planting

[0058] Dig the planting soil to a depth of 146cm, compact the bottom, lay an impermeable membrane on the bottom, and build a waterproof retaining wall around it.

[0059] Step 3 Laying the salt drainage layer

[0060] Concealed pipes are buried at the bottom of the excavated planting ground. The hidden pipes are made of 110 diameter PVC perforated corrugated pipes, the thickness of the outer sand filter material is not less than 8 cm, the...

Embodiment 3

[0072] Embodiment 3 A kind of root salt control method that adopts ceramsite percolation layer

[0073] Step 1 Selection of saline-alkali land

[0074] The moisture content of the soil in the selected saline-alkali land is 12.1-15.2%, the total porosity of the soil is 34.2-40.7%, the pH value of the soil is 8.1-9.2, the salt content of the soil is 0.68-0.81%, and the bulk density of the soil is 1.43 ~1.51g / cm 3 , the content of Cl- is 3.76g / kg, and the content of Na+ is 2.12g / kg.

[0075] Step 2 Excavate the saline-alkali land for planting

[0076] Dig the planting soil to a depth of 155cm, compact the bottom, lay an impermeable membrane on the bottom, and build a waterproof retaining wall around it.

[0077] Step 3 Laying the salt drainage layer

[0078] Concealed pipes are buried at the bottom of the excavated planting ground. The hidden pipes are made of 110 diameter PVC perforated corrugated pipes, the thickness of the outer sand filter material is not less than 8 cm, ...

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Abstract

The invention provides a root salt control method with a ceramsite percolation layer. The root salt control method includes the step of percolation layer laying; the percolation layer comprises ceramsite, litchi-wood active carbon, peach-shell active carbon, maize straw and Kanuma soil. The root salt control method has the advantages that the root salt control method with the percolation layer has the good improvement effect on physicochemical properties of soil in saline-alkali land; three months later, the total porosity of soil in the middle of a melia-azedarach main root is 46% to 53%, the total porosity of soil at the lower portion of the melia-azedarach main root is 49% to 55%, the salt content of the soil in the middle of the melia-azedarach main root is 0.14% to 0.19%, and the salt content of the soil at the lower portion of the melia-azedarach main root is 0.13% to 0.18%.

Description

technical field [0001] The invention relates to a root salt control method using a ceramsite percolation layer and its application in neem planting in saline-alkali land, belonging to the technical field of agricultural utilization. Background technique [0002] At present, my country's water and soil resources can only guarantee 500 million tons of grain production capacity, which is far from meeting the huge demand of the growing population. At the same time, my country's energy shortage contradiction is becoming increasingly acute, and the development of biomass energy must ensure the premise of "food security". my country currently owns coastal tidal flats with a total area of ​​nearly 40 million mu, which are important reserve land resources in my country. The development and utilization of saline-alkali soil in coastal tidal flats can not only provide food sources, but also become the production carrier of important salt-tolerant plants such as energy. [0003] From t...

Claims

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Application Information

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IPC IPC(8): A01B79/02A01G9/10
CPCA01B79/02A01G24/00Y02A40/10
Inventor 王胜
Owner SHANDONG SUNWAY LANDSCAPE TECH
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