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

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...

AI Technical Summary

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 water land preparation, and then water land preparation to cause flooding. Insufficient waste of resources and labor-intensive efforts, providing a method of dry-planting rice seedlings in saline-alkali land that has not been soaked in the field and soaked in salt on the saline-alkali land paddy field with treated rice seeds