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Root salt-controlling method adopting diatomaceous earth diafiltration layer and application of method in iris ensata thunb plantation of saline land

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

Method used

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  • Root salt-controlling method adopting diatomaceous earth diafiltration layer and application of method in iris ensata thunb plantation of saline land
  • Root salt-controlling method adopting diatomaceous earth diafiltration layer and application of method in iris ensata thunb plantation of saline land
  • Root salt-controlling method adopting diatomaceous earth diafiltration layer and application of method in iris ensata thunb plantation of saline land

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Example 1 A root salt control method using a diatomite percolation layer

[0038] Step 1 Selection of saline-alkali land

[0039] The moisture content of the soil in the selected saline-alkali land is 13.7-16.8%, the total porosity of the soil is 36.2-42.3%, the pH value of the soil is 8.1-9.2, the salt content of the soil is 0.54-0.67%, and the bulk density of the soil is 1.35 ~1.48g / cm 3 , Cl - The content is 3.12g / kg, Na + The content is 1.95g / kg.

[0040] Step 2 Excavate the saline-alkali land for planting

[0041] Dig the planting soil to a depth of 115cm, compact the bottom, lay an impermeable membrane on the bottom, and build a waterproof retaining wall around it.

[0042] Step 3 Laying the salt drainage layer

[0043] 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

[0055] Embodiment 2 A kind of root salt control method that adopts diatomite percolation layer

[0056] Step 1 Selection of saline-alkali land

[0057] The moisture content of the soil in the selected saline-alkali land is 13.7-16.8%, the total porosity of the soil is 36.2-42.3%, the pH value of the soil is 8.1-9.2, the salt content of the soil is 0.54-0.67%, and the bulk density of the soil is 1.35 ~1.48g / cm 3 , Cl - The content is 3.12g / kg, Na + The content is 1.95g / kg.

[0058] Step 2 Excavate the saline-alkali land for planting

[0059] Dig the planting soil to a depth of 120cm, compact the bottom, lay an impermeable membrane on the bottom, and build a waterproof retaining wall around it.

[0060] Step 3 Laying the salt drainage layer

[0061] 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 g...

Embodiment 3

[0073] Embodiment 3 A kind of root salt control method that adopts diatomite percolation layer

[0074] Step 1 Selection of saline-alkali land

[0075] The moisture content of the soil in the selected saline-alkali land is 13.7-16.8%, the total porosity of the soil is 36.2-42.3%, the pH value of the soil is 8.1-9.2, the salt content of the soil is 0.54-0.67%, and the bulk density of the soil is 1.35 ~1.48g / cm 3 , Cl - The content is 3.12g / kg, Na + The content is 1.95g / kg.

[0076] Step 2 Excavate the saline-alkali land for planting

[0077] Dig the planting soil to a depth of 130cm, compact the bottom, lay an impermeable membrane on the bottom, and build a waterproof retaining wall around it.

[0078] Step 3 Laying the salt drainage layer

[0079] 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 g...

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Abstract

The invention provides a root salt-controlling method adopting a diatomaceous earth diafiltration layer. The root salt-controlling method comprises the step of laying the diafiltration layer. The diafiltration layer comprises diatomaceous earth, beech activated carbon, activated carbon for melon seed shells, paddy rice straw and sandy soil. The root salt-controlling method adopting the diatomaceous earth diafiltration layer has following beneficial effects: the root salt-controlling method containing the diafiltration layer has the effect of bettering physical and chemical properties of soil; after 3 months, soil in the middle of iris ensata thunb roots is 1.23-1.23g / cm<3> in unit weight, soil at the lower parts of iris ensata thunb roots is 1.24-1.34g / cm<3> in unit weight, soil salt-containing amount in middles of iris ensata thunb roots is 0.12-0.17% and the soil salt-containing amount in lower parts of iris ensata thunb roots is 0.10-0.16%.

Description

technical field [0001] The invention relates to a root salt control method using a diatomite percolation layer and its application in the planting of horse iris 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. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/02A01G1/00
CPCA01B79/02A01G22/00Y02A40/10
Inventor 王胜
Owner SHANDONG SUNWAY LANDSCAPE TECH
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