Saline-alkali soil trace-element-rich brackish water irrigation method and application thereof in indian lettuce planting

A technology of trace elements and brackish water, applied in the agricultural field, can solve the problems of low annual yield of fresh grass, low nutrient content of bitter gourd, low planting survival rate, etc. The effect of increasing the annual yield of fresh grass

Inactive Publication Date: 2015-10-28
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 the prior art has the following defects: adopt the irrigation method of the prior art, and the annual yield of the fresh grass of planting bitter weed in saline-alkali land is low; The survival rate of planting is low; the nutrient content of the planted bitter cabbage is low

Method used

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  • Saline-alkali soil trace-element-rich brackish water irrigation method and application thereof in indian lettuce planting

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1 Application of a saline-alkali land-rich micro-salt water irrigation method in the cultivation of bitter spinach

[0026] Step 1. Site preparation

[0027] The planting area is saline-alkali soil, the salt content of the 0-40cm soil layer is 0.6-0.8, the pH is 8.4-8.6, and the alkalization degree is 21-22%.

[0028] Before sowing, the ground should be carefully prepared to facilitate sowing and emergence.

[0029] Sowing time is from late February to late March. 30-35 days before sowing, improve the soil, apply 230 kg of soil improver per mu, plow 30 cm, rake the surface soil, and pour water once. The soil conditioner includes the following components in parts by weight: 7-9 parts of phosphogypsum, 10-12 parts of citric acid, 4-6 parts of biochar, 8-11 parts of desulfurized gypsum, 6-9 parts of seaweed powder, water retention 10-15 parts of humic acid, 31-32 parts of humic acid, 2-3 parts of ferrous sulfate, 1-2 parts of zinc nitrate, 1-2 parts of calcium n...

Embodiment 2

[0062] Example 2 Application of a saline-alkali land rich micro-salt water irrigation method in the planting of bitter gourd

[0063] Adopt the planting method of embodiment 1, only change the step 3 irrigation, carry out embodiment 2 planting bitter grass.

[0064] The irrigation steps of embodiment 2 are as follows:

[0065] (1) Seedling irrigation

[0066] Irrigate using brackish water and fresh water rotation irrigation, the ratio of brackish water and fresh water rotation irrigation is 1:3, irrigate once every 4 days, and the amount of irrigation each time is 300m3 / ha; the salinity of the fresh water is less than 1g / L, the salinity of the brackish water is 3.0g / L, the pH is 8.2, the salt content is 0.10%, and the sodium salt content accounts for 82% of the total salt content.

[0067] (2) Irrigation during growth period:

[0068] Irrigate with brackish water and fresh water in rotation, the ratio of brackish water and fresh water rotation is 1:2, irrigate once every 8 ...

Embodiment 3

[0077] Example 3 Application of a saline-alkali land rich micro-salt water irrigation method in the planting of bitter gourd

[0078] Adopt the planting method of embodiment 1, only change the step 3 irrigation, carry out embodiment 3 planting bitter root.

[0079] The irrigation steps of embodiment 3 are as follows:

[0080] (1) Seedling irrigation

[0081] Irrigate using brackish water and fresh water rotation irrigation, the ratio of brackish water and fresh water rotation irrigation is 1:3, irrigate once every 5 days, and the amount of irrigation each time is 320m3 / ha; the salinity of the fresh water is less than 1g / L, the salinity of the brackish water is 3.2g / L, the pH is 8.4, the salt content is 0.12%, and the sodium salt content accounts for 84% of the total salt content.

[0082] (2) Irrigation during growth period:

[0083] Irrigate with brackish water and fresh water in rotation, the ratio of brackish water and fresh water rotation is 1:2, irrigate once every ...

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Abstract

The invention discloses a saline-alkali soil trace-element-rich brackish water irrigation method and an application thereof in indian lettuce planting. The saline-alkali soil trace-element-rich brackish water irrigation method comprises: seedling-stage irrigation, growth-stage irrigation, and fast-growing stage irrigation. The fast-growing stage irrigation adopts an alternating irrigation mode in a ratio of times adopting trace-element-rich brackish water to times adopting fresh water of 1 to 2, wherein irrigation volume at every turn is 550-650 m3/hectare. The trace-element-rich brackish water is prepared by dissolving a trace element fertilizer in brackish water. The seedling-stage irrigation adopts an alternating irrigation mode in a ratio of times adopting brackish water to times adopting fresh water of 1 to 3, wherein irrigation volume at every turn is 280-320 m3/hectare. The growth-stage irrigation adopts an alternating irrigation mode in a ratio of times adopting brackish water to times adopting fresh water of 1 to 2, wherein irrigation volume at every turn is 430-470 m3/hectare. The saline-alkali soil trace-element-rich brackish water irrigation method disclosed by the invention is adopted for planting indian lettuce, wherein the annular output of fresh grass is 11000-12000kg/mu.

Description

technical field [0001] The invention belongs to the field of agriculture, and relates to a brackish water irrigation method, in particular to a brackish water irrigation method rich in trace elements in saline-alkali land and its application in planting bitter weed. Background technique [0002] Agriculture is developing very rapidly in coastal areas now, and many coastal saline-alkali lands are being used to grow various pastures or other cash crops. However, the lack of coastal fresh water resources and serious soil salinization 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. [0003] The underground of coastal areas is rich in brackish water and salt water resources. If they are utilized, they can not only meet the needs of irrigation water resources, but also improve salinized soil. [0004] But there is following...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G25/00A01G1/00A01C21/00C05G1/00
CPCA01C21/005A01G22/00A01G25/00C05C3/00C05D9/00C05D9/02C05G5/23Y02A40/22
Inventor 王胜
Owner WEIFANG YOURONG IND
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