Dry farming cultivation method for amaranthus hypochondriacus in moderate-severe saline-alkali soil

A technology of severe saline-alkali soil and cultivation method, which is applied in the field of Qiansui Valley dry-farming cultivation in medium-to-severe saline-alkali land, can solve the problems of low survival rate, poor biological yield, and low plant emergence rate, so as to improve the emergence rate, avoid crazy growth and lodging, and ensure The effect of high-yield cultivation

Inactive Publication Date: 2014-06-18
HEBEI AGRICULTURAL UNIV.
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a kind of method that can cultivate Qiansui Gu by dry farming in medium and severe saline-alkali land with a salinity degree of 0.3~0.8%, which is used to solve the problem of low plant emergence rate, low survival rate and poor biological yield in traditional cultivation methods. and other problems, and the method of the present invention can reduce the salinity of saline-alkali land, and further have the effect of improving soil

Method used

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  • Dry farming cultivation method for amaranthus hypochondriacus in moderate-severe saline-alkali soil
  • Dry farming cultivation method for amaranthus hypochondriacus in moderate-severe saline-alkali soil
  • Dry farming cultivation method for amaranthus hypochondriacus in moderate-severe saline-alkali soil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Taking the saline-alkali land experiment field in Haixing County, Cangzhou City as an example, the dry-farming cultivation method of Qiansui Valley in medium-to-severe saline-alkali land is introduced in detail.

[0031] The pH value of the soil in the saline-alkali test field in Haixing County, Cangzhou City is 8.1, and the salinity degree is 0.34%. The soil composition analysis of the test site is shown in Table 1.

[0032] Table 1

[0033]

[0034] (1) Soil treatment before sowing

[0035] Land preparation: Before the summer rainy season, level the land and organize the land into fields with ridges on all sides. One side of the ridges is provided with a 0.5m long gap, and the area of ​​the fields is 15m 2 , the field slope is 3°.

[0036] Salt spraying: use the first moderate rain in June (about 40 m 3 Fresh water) spray salt, and after the rainfall ends, the remaining water in the field will be introduced into the drainage ditch;

[0037] Fertilization: On th...

Embodiment 2

[0046] Different fertilizers were used as basal fertilizers to detect the effects on the growth of Qiansui Gu. The fertilizers used are shown in Table 1. At the same time, blank fertilizers were used as controls. A total of 7 treatments were used, and each treatment was repeated 3 times. Field area is 10m 2 (2m×5m), the sowing rate of Qiansui Valley is 12kg / hm 2 , every block is planted 5 rows, and row spacing is 40cm; Other operations are identical with embodiment 1. See Table 2 for details.

[0047] The fertilizer adopted in the table 2 embodiment 2

[0048] Unit: (kg / hm 2 )

[0049]

[0050]Among them, the total nutrients of the applied organic fertilizer are more than 4% (of which total N is 1.38%, total P is 1.62%, and total K is 1.31%), and the organic matter is 32%. Calculate the amount of organic fertilizer based on the total potassium content of the organic fertilizer. If the nitrogen and phosphorus nutrients are insufficient, use chemical fertilizers to suppl...

Embodiment 3~5

[0057] Soils with different salinity were configured, and Chisui Valley was planted with different fertilization rates. Other experimental methods were the same as in Example 1. After 1 year of planting, the Qiansui Valley was cut for 3 times. Compared with the traditional planting method (comparative example), the experimental results are shown in Table 3. Compared with the traditional method, the method of the invention can remarkably improve the emergence rate, survival rate and yield of Qiansui Gu, is suitable for popularization in medium-severe saline-alkali land, and has the effect of improving soil.

[0058] The traditional cultivation method is as follows: apply nitrogen fertilizer, and the amount of application is enough to make the amount of pure nitrogen 15kg / mu (225 kg / hm 2 ); the seeding rate was 0.7 kg / mu; the row spacing was 50 cm; the seeding depth was 1.0 cm.

[0059] table 3

[0060]

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Abstract

The invention belongs to the technical field of plant cultivation, and particularly relates to a dry farming cultivation method for amaranthus hypochondriacus in moderate-severe saline-alkali soil. The method comprises the following steps of soil preparation before seeding, desalination, base fertilizer application, high-density wide and narrow row spacing summer seeding, planting and the like. According to the method, before a rainy season comes, cultivated land is prepared into a field piece which is slightly inclined by three degrees to five degrees, ridges are arranged around the field piece, and salt-leaching is carried out through the first moderate rain in May to June (or the field of each mu is irrigated with water of 40m<3>); after the rain, base fertilizer of 500 kg to 1000 kg is spread over the field per mu, and deep ploughing and seeding are carried out; mixtures formed by evenly and properly mixing seeds and fine sandy soil are adopted, the seeds of 0.6 kg to 1.0 kg are sown in strip per mu, and wide and narrow row spacing sowing in strip (wide row spacing ranges from 40 cm to 60 cm, and narrow row spacing ranges from 20 cm to 30 cm) is preferably adopted as the strip sowing mode. The seeding depth is 1.5 cm to 2 cm, and the row spacing after thinning is 5 cm to 10 cm. According to the method, full stand can be achieved in the dry farming saline-alkali soil with high salt content (the salinity ranges from 0.3 percent to 0.8 percent), uniform seedling emergence can be guaranteed, the problem of large-area ridge breaking and seedling lack in the saline-alkali soil without irrigation conditions is solved, and the biological yield is improved.

Description

technical field [0001] The invention belongs to the technical field of plant cultivation, and in particular relates to a dry-farming cultivation method for Qiansui Valley in medium-severe saline-alkali land. Background technique [0002] Currently, soil salinization has become a global problem. It is estimated that the saline soil in the world is reduced by 1 million to 1.5 million hm per year. 2 speed growth. Saline soil is widely distributed in more than 100 countries in the world, accounting for about 10% of the global land area. There are various types of saline-alkali land in my country 3.0×108hm 2 , accounting for about 7% of the state-owned arable land, many of which lack fresh water resources. Due to the lack of fresh water resources, the deep groundwater in some areas has formed a large area of ​​underground funnels due to overexploitation, and the shallow water is too salty and difficult to use, which seriously restricts and affects the sustainable development ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/00
Inventor 王红周大迈张瑞芳张爱军赵斌
Owner HEBEI AGRICULTURAL UNIV.
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