Method for planting sunflowers in serious saline and alkaline land by sea

A technology for saline-alkali land and oil sunflower, which is applied in the fields of water resources utilization and soil improvement, can solve the problem of not providing the operation method for planting specific crops, and achieves the effect of ensuring survival and normal growth, inhibiting soil evaporation, and reducing upward migration.

Active Publication Date: 2012-01-25
INST OF GENETICS & DEVELOPMENTAL BIOLOGY CHINESE ACAD OF SCI
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Problems solved by technology

However, the above research does not give specific operation methods for planting specific crops. Due to the different habits of different plants, it is ...

Method used

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Embodiment 1

[0026] Below is the application example of the applicant's planting oil sunflower in coastal heavy saline-alkali land. The base is located in Haixing County, Hebei Province, which has a warm temperate continental monsoon climate, with an annual average temperature of 12.1°C, an average temperature of -4.6°C in January, an extreme minimum temperature of -19.9°C, and a frost-free period of 217 days. The annual sunshine hours are 2718.8 hours, and the average annual precipitation is 627.9mm, mainly concentrated in July to August, accounting for 74% of the annual precipitation. This area is a coastal plain, low-lying and flat, with an altitude of 1.3-3.6m, and the soil is coastal saline soil with a salt content of more than 0.8%, which is coastal heavy saline-alkali land. The groundwater level is shallow, with an average of about 1 meter, and the groundwater is highly mineralized, with a salt content of 7-20g·L -1 .

[0027] The method for planting oil sunflower in seaside heavy...

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Abstract

The invention discloses a method for planting sunflowers in serious saline and alkaline land by the sea. The method comprises the following steps: A. preparing land, and constructing strip fields or raised fields; B. irrigating and icing with saline water in winter; C. covering with mulching films; D. sowing seeds; E. managing in the growing period; and F. harvesting when the sunflowers are grown up. According to the invention, through the series measures of arranging land, irrigating and icing with saline water in winter, ice melting and showering by saline water in spring, covering with mulching films for inhibiting saline and preserving soil moisture and the like, the saliferous content of soil at the root layer of the sunflowers is reduced, and the normal development of the sunflowers is ensured; and the method provided by the invention is simple to operate, has low cost, is suitable for being used in saline and alkaline regions by the sea, and has prominent economic, social and ecological benefits.

Description

technical field [0001] The invention relates to the technical field of water resources utilization and soil improvement, in particular to a method for planting oil sunflowers in heavy saline-alkali coastal areas. Background technique [0002] Soil saline-alkali drought is the main factor restricting the development of agriculture. The traditional improvement of saline-alkali land is mainly realized through irrigation and drainage measures such as spraying salt with fresh water, extracting groundwater, and lowering the groundwater table. The application of this measure is limited due to the scarcity of fresh water resources. Especially along the coast of the Bohai Sea, more than 20 million mu of coastal saline-alkali land is difficult to use due to lack of fresh water, and it is difficult for crops to grow. However, although freshwater resources are scarce in coastal areas, saltwater resources are abundant. [0003] Referring to the applicant's previous patent "Method for I...

Claims

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Application Information

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IPC IPC(8): A01G1/00A01G13/02A01B79/02
Inventor 刘小京张秀梅郭凯谢志霞陈丽娜巨兆强
Owner INST OF GENETICS & DEVELOPMENTAL BIOLOGY CHINESE ACAD OF SCI
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