Film mulching and ridging salt-tolerance planting method for sweet sorghum in coastal beach saline-alkali soil

Abstract

The invention discloses a film mulching and ridging salt-tolerance planting method for sweet sorghum in coastal beach saline-alkali soil, and belongs to the technical field of crop growing. According to the method, base fertilizer is sufficiently applied in the saline-alkali soil in a coastal beach area, wherein the salt content of the saline-alkali soil is lower than 0.5%; after the soil is finely prepared, ditching is carried out to make beds according to the standard that the width of each bed face is 3-4m; the sweet sorghum is planted in large lines and small lines in suitable density according to the salt content of the soil, wherein the large line spacing is 80cm, and the small line spacing is 40cm; sweet sorghum species of which the growth period ranges from 110 days to 120 days are selected and used to be seeded in the last ten-day period of May and the first ten-day period of June; if soil moisture content is low, irrigation can be carried out to improve the soil moisture content, and seeding is carried out after the soil moisture content reaches a suitable value; after seeding and earthing, the small lines are covered by mulching film, small high ridges with the height of about 5cm and the width of about 10cm are heaped at the film edges, and seedlings are led out of the film timely after emerging. The high-yield culture techniques such as final singling and seedling keeping management, base fertilizer application, jointing fertilizer dressing and disease pest and weed integrated control are adopted after seedling emerging for field management, and the high yield of the sweet sorghum with the stem and leave fresh weight reaching 4-5ton per mu can be achieved.

Description

technical field [0001] The invention relates to a salt-tolerant planting method of sweet sorghum "covered and ridged" in saline-alkali coastal tidal flats, a salt-tolerant cultivation technique for sweet sorghum, and a new method for planting sweet sorghum in saline-alkali coastal tidal flats with a salt content below 0.5%, which belongs to cultivation technology field. Background technique [0002] Jiangsu Province has a large population, less arable land, and the prominent contradiction between man and land has become an important restrictive factor for the sustainable development of agriculture in Jiangsu Province. Coastal tidal saline-alkali land is an important reserve resource for agricultural development in Jiangsu Province. The development of tidal saline-alkali land is of great significance for alleviating the contradiction between population increase and land reduction, realizing the dynamic balance of total cultivated land and sustainable agricultural development....

AI Technical Summary

Problems solved by technology

At present, the cultivation technology of sweet sorghum is mainly researched and developed for the cultivation of sweet sorghum on normal land or inland dry land, and the guidance effect on the cultivation of sweet sorghum in tidal flat saline-alkali land is not obvious, which limits the development of sweet sorghum cultivation in saline-alkali land

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