Dry culture seedling method of paddy rice in saline-alkali soil

A technology for saline-alkali land and rice seeds, which is applied in the fields of rice cultivation, botanical equipment and methods, horticulture, etc., can solve the problems that the dry rice seeding technology cannot be applied on saline-alkali land, waste of water resources, labor-intensive and labor-intensive, etc. Easy to manage, early seedling effect

Inactive Publication Date: 2013-01-16
河北省农林科学院滨海农业研究所
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Problems solved by technology

[0011] The purpose of the present invention is to address the deficiency that the existing rice dry planting technology cannot be applied on saline-alkali land, and for the existing saline-alkali land water direct-seeding technology, it is necessary to first soak the field to rinse the saline-alkali, and then carry out wat

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Embodiment Construction

[0034] The present invention will be further described below.

[0035] The method for growing seedlings of rice in saline-alkaline land disclosed by the present invention includes a method for treating rice seeds and a method for growing seedlings in dry-planting, that is, dry-sowing treated rice seeds on saline-alkali paddy fields that have not been soaked in the field and drenched with salt The method for dry seeding of rice in saline-alkali land.

[0036] A. The treatment method of rice seeds:

[0037] a. Seed soaking stage: if the water temperature for soaking seeds is 24~26°C, the soaking time is 2~6 days; if the water temperature for soaking seeds is 27~32°C, soak seeds for 1~4 days; all of them should stop soaking when a small amount of seeds are white at the latest . After soaking the seeds, enter the next stage. After soaking, the seeds are dried in the sun and are ready for dry sowing. The soaked seeds are also allowed to be directly used for dry sowing without b...

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Abstract

The invention provides a dry culture seedling method of paddy rice in saline-alkali soil. The dry culture seedling method is characterized by dryly seeding treated paddy rice seeds into the saline-alkali soil not performed field steeping and salt spraying. The method comprises the following stages: a seed soaking stage, a seed sunning stage, a rotary harrowing and field sunning stage, a dry seeding and seed sunning stage, a salt spraying and sprouting stage, a drying and seedling germinating stage, a continuous irrigating stage, an irrigating stage before seedling emergency and the irrigatingstage after the seedling emergency. The method provided by the invention makes use of water used for washing the salt and the alkali and the time used for washing the salt, the alkali and the water in the whole land to sprout and germinate the seeds absorbed with the water. With the adoption of the method, continuous irrigation is adopted after the seedling emergency and before the expansion of afirst leaf of the seedling, or continuous seedling-flooded irrigation is adopted or a shallow water layer is started to establish, so that the whole salt content in the soil is further effectively decreased, so as to realize the dry culture of the paddy rice in the saline-alkali soil.

Description

technical field [0001] The invention relates to a rice cultivation method, in particular to a method for dry-planting rice seedlings in saline-alkali land. Background technique [0002] Traditional rice cultivation is far from meeting the needs of modern rice cultivation. At present, commonly used rice cultivation methods include rice dry planting water pipes and rice direct seeding in saline-alkali land. [0003] About the cultivation method of rice dry planting water pipe: [0004] Yang Yufeng (Hubei Yuanan County Agricultural Technology Center) reported in 2006 that the water pipe for dry rice cultivation refers to a kind of drought-resistant and water-saving method for rice seeds to be sown under dry farming conditions without seedling cultivation and transplanting, and to establish water layer management within a certain period of time. Sowing method. This technology can better solve the problem of delaying rice seedling raising and transplanting due to drought and le...

Claims

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Application Information

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IPC IPC(8): A01G16/00A01G22/22
Inventor 周汉良孙昌禹吴新海刘善资薛志忠杨雅华王风芝刘艳辉左永梅
Owner 河北省农林科学院滨海农业研究所
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