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Method for irrigating saline and alkali land with amino-acid-enriched brackish water and application thereof to festuca arundinacea planting

A technology of reed fescue rich in amino acids, applied in the field of agriculture, can solve the problems of low yield per mu of fresh grass, low survival rate of reed fescue planting, and low nutrient content of reed fescue, so as to improve the planting survival rate , increase the yield per mu, increase the effect of dry matter content

Inactive Publication Date: 2015-10-07
WEIFANG YOURONG IND
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] But the brackish water irrigation technology of prior art has following defect: adopt the irrigation method of prior art, the planting survival rate of planting reed-shaped fescue in saline-alkali land is low; Fresh grass yield per mu is low; lower content

Method used

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  • Method for irrigating saline and alkali land with amino-acid-enriched brackish water and application thereof to festuca arundinacea planting

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1 Application of a saline-alkali land rich in amino acid brackish water irrigation method in the planting of reed fescue

[0028] Step 1. Site preparation

[0029] The planting area is saline-alkali land: the salt content of the 0-30cm soil layer is 0.56-0.58%, the pH is 8.0-8.2, and the humus content is 0.2-0.4g / kg.

[0030] Prepare the soil carefully before planting. First carry out soil improvement, and apply 290kg of soil improver per mu; the soil improver components include 5-7 parts of polyvinyl alcohol, 9-10 parts of biochar, 2-3 parts of Suaeda salsa powder, and 18-20 parts of diatomaceous earth , 15-18 parts of water-retaining agent, 7-8 parts of ferric citrate, 12-13 parts of urea-formaldehyde-sulfonated humic acid, the above-mentioned parts are parts by weight. After applying the improver, the soil should be plowed 40cm deep, and the surface soil should be raked and leveled.

[0031] Step 2. Sowing

[0032] Sow in spring, after rain. Apply organi...

Embodiment 2

[0056] Example 2 Application of a saline-alkali soil-rich amino acid-rich brackish water irrigation method in the planting of reed fescue

[0057] Adopt the planting method of embodiment 1, only change step 3 irrigation, carry out embodiment 2 and plant reed fescue.

[0058] The irrigation steps of embodiment 2 are as follows:

[0059] (1) Seedling irrigation:

[0060] Irrigate with brackish water and fresh water in rotation, the ratio of brackish water and fresh water rotation is 1:4, irrigate once every 8 days, and the amount of irrigation each time is 420m3 / ha;

[0061] The salinity of the fresh water is less than 1g / L, the salinity of the brackish water is 2.6g / L, the pH is 7.9, the salt content is 0.1%, and the sodium salt content accounts for 74% of the total salt content.

[0062] (2) Mid-term irrigation:

[0063] Irrigate with amino acid-rich salt water and fresh water in rotation, the ratio of amino acid-rich salt water to fresh water rotation is 1:3, irrigate once...

Embodiment 3

[0070] Example 3 Application of a saline-alkali land rich in amino acid brackish water irrigation method in the planting of reed fescue

[0071] Adopt the planting method of embodiment 1, only change step 3 irrigation, carry out embodiment 3 and plant reed fescue.

[0072] The irrigation steps of embodiment 3 are as follows:

[0073] (1) Seedling irrigation:

[0074] Irrigate with brackish water and fresh water rotation, the ratio of brackish water and fresh water rotation is 1:4, irrigate once every 10 days, and the amount of each irrigation is 450m3 / ha;

[0075] The salinity of the fresh water is less than 1g / L, the salinity of the brackish water is 2.8g / L, the pH is 8.2, the salt content is 0.11%, and the sodium salt content accounts for 76% of the total salt content.

[0076] (2) Mid-term irrigation:

[0077] Irrigate with amino acid-rich salt water and fresh water in rotation, the ratio of amino acid-rich salt water to fresh water rotation is 1:3, irrigate once every 7...

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Abstract

The invention provides a method for irrigating a saline and alkali land with amino-acid-enriched brackish water. The method includes middle-stage irrigation adopting the mode of rotation irrigation with the amino-acid-enriched brackish water and fresh water. The ratio of the rotation irrigation number of times of the amino-acid-enriched brackish water to that of the fresh water is 1:3, and the irrigation amount each time is 500-700 m<3> / hectare. Amino acid fertilizer comprises 5-6% of valine, 7-9% of cystine, 3-4% of asparaginic acid, 2-3% of hydroxyproline, 3-5% of tryptophan, 3-6% of serine, 7-8% of threonine and 10-16% of microelement. The method for irrigating with the amino-acid-enriched brackish water is adopted to plant festuca arundinacea, the planting survival rate is 89.8-98.9%, the fresh grass yield per mu is 4100-4300 kg / mu, and the dry matter content of festuca arundinacea fresh grass is 28.4-32.1%.

Description

technical field [0001] The invention belongs to the field of agriculture, and relates to a brackish water irrigation method, in particular to an amino acid-rich brackish water irrigation method in saline-alkali land and its application in planting reed fescue. Background technique [0002] The lack of fresh water resources in the coastal areas and the serious salinization of the soil seriously restrict the economic benefits of agriculture. Moreover, for a long time, underground freshwater resources will lead to aggravation of salinization, which will even threaten ecological security. The use of shallow underground brackish water to irrigate farmland is an important way to save limited freshwater resources, alleviate drought, and meet the water demand of crops in critical periods. [0003] The underground of coastal areas is rich in brackish water and salt water resources. If rationally used, it can not only meet the needs of irrigation water resources, but also improve the...

Claims

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Application Information

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IPC IPC(8): A01G25/00A01G1/00A01N43/647A01P19/00C09K17/40C09K101/00
CPCA01G22/00A01G25/00A01N27/00A01N31/04A01N31/06A01N35/02A01N37/02A01N37/10A01N37/40A01N43/647A01N2300/00C09K17/40Y02A40/22Y02P60/21
Inventor 王胜
Owner WEIFANG YOURONG IND
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