Brackish water and fresh water rotation irrigation method for saline and alkaline land and application thereof to red clover planting

A technology of red clover and fresh water wheel, which is applied to brackish water and fresh water rotary irrigation in saline-alkali land, and the application field of red clover planting, can solve the problems of low nutrient content of red clover, low annual yield of fresh grass, low planting survival rate and the like , to achieve the effect of improving planting survival rate, increasing dry matter content, and increasing nutrient content.

Inactive Publication Date: 2015-10-07
WEIFANG YOURONG IND
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  • Summary
  • 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 fresh grass annual yi

Method used

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  • Brackish water and fresh water rotation irrigation method for saline and alkaline land and application thereof to red clover planting

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1 Application of a saline-alkali land brackish water and fresh water rotation irrigation method in red clover planting

[0028] Step 1. Select the plot

[0029] The selected planting area is saline-alkali land, the salt content of the 0-30cm soil layer is 1.0-1.4%, and the pH is 7.6-7.8.

[0030] Step 2. Soil Improvement

[0031] 30-35 days before sowing, carry out soil improvement, and apply 180kg of soil improver per mu; after applying the improver, plow the soil 40cm deep, rake the surface soil, and water it once.

[0032] The soil improver components include 10-12 parts of biochar, 2-3 parts of polyvinyl alcohol, 8-9 parts of diatomaceous earth, 19-20 parts of water-retaining agent, 9-10 parts of ferric citrate, urea-formaldehyde-sulfonated 8-9 parts of humic acid, 4-6 parts of desulfurized gypsum, the above-mentioned parts are all parts by weight.

[0033] Step 3. Sowing

[0034] The sowing method is drill sowing, and the row spacing is 15-20cm. The so...

Embodiment 2

[0074] Example 2 Application of a saline-alkali land brackish water and fresh water rotation irrigation method in red clover planting

[0075] Adopt the planting method of embodiment 1, only change step 4 irrigation, carry out embodiment 2 planting red clover .

[0076] The irrigation steps of embodiment 2 are as follows:

[0077] (1) Seedling irrigation

[0078] Irrigate using brackish water and fresh water rotation irrigation, the ratio of brackish water and fresh water rotation irrigation is 1:4, irrigate once every 5 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 2.6g / L, the pH is 8.0, the salt content is 0.11%, and the sodium salt content accounts for 79% of the total salt content.

[0079] (2) Irrigation during the growth period

[0080] It is irrigated by rotating irrigation with organic-rich salt water and fresh water, the ratio of organic-rich salt water and fres...

Embodiment 3

[0091] Example 3 Application of a saline-alkali land brackish water and fresh water rotation irrigation method in red clover planting

[0092] Adopt the planting method of embodiment 1, only change step 4 irrigation, carry out embodiment 3 planting red clover .

[0093] The irrigation steps of embodiment 3 are as follows:

[0094] (1) Seedling irrigation

[0095] Irrigate using brackish water and fresh water rotation irrigation, the ratio of brackish water and fresh water rotation irrigation is 1:4, irrigate once every 6 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 2.8g / L, the pH is 8.2, the salt content is 0.12%, and the sodium salt content accounts for 80% of the total salt content.

[0096] (2) Irrigation during the growth period

[0097] Irrigate with organic-rich saline water and fresh water in rotation, the ratio of organic-rich salt water to fresh water rotation...

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Abstract

The invention provides a brackish water and fresh water rotation irrigation method for a saline and alkaline land. Irrigation includes irrigation in the seedling period, irrigation in the growing period and irrigation in the cutting period. According to irrigation in the growing period, the ratio of rotation irrigation number of times of the organic-matter-enriched brackish water to that of the fresh water is 1:2, the land is irrigated once every 8-10 days, and the one-time irrigation volume is 450-500 m<3>/hectare. A preparing method for the organic-matter-enriched brackish water includes the step that organic-matter-enriched fertilizer is dissolved in the brackish water. The organic-matter-enriched fertilizer comprises, by weight, 24-26 parts of seaweed residues, 10-12 parts of chicken manure, 1-3 parts of microbial agent, 2-4 parts of magnesium-containing phosphate, 5-8 parts of fulvic acid and 2-3 parts of glutelin cystine. The irrigation method is adopted to plant red clover, the planting survival rate is 98.6-99.2%, and the annual output of red clover fresh grass is 6800-6900 kg/mu.

Description

technical field [0001] The invention belongs to the field of agriculture, and relates to a brackish water and fresh water mixed irrigation method, in particular to a saline land brackish water and fresh water wheel irrigation method and its application in red clover planting. Background technique [0002] At present, agriculture in the coastal areas is developing rapidly, and the irrigation problem has always been concerned by the people. The saline-alkali land in the coastal area lacks fresh water resources, and the underground brackish water and salt water resources are abundant. [0003] In view of the groundwater resources in saline-alkali land in coastal areas, it is particularly important to study how to irrigate reasonably. That is to say, it is an important research direction to rationally use saline groundwater to realize the purpose of irrigation in planting. At present, salt water irrigation technology mainly includes individual irrigation and mixed irrigation. T...

Claims

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Application Information

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IPC IPC(8): A01G1/00A01G25/00
CPCA01G22/00A01G25/00
Inventor 王胜
Owner WEIFANG YOURONG IND
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