A method suitable for cultivating wheat in soil with a salinity of 0.3%-0.4%

Abstract

The invention discloses a method suitable for cultivating wheat in soil with a salinity of 0.3%-0.4%, that is, before the wheat is sown, the base fertilizer is applied to the wheat field, and the base fertilizer is monoammonium phosphate and urea; after sowing, the wheat field is covered with Vinegar dregs, the amount of vinegar dregs is 3 t / mu; 10 kg of urea per mu is used for fertilization during the greening period; 10 kg of urea is used per mu for jointing and booting stage, and 10 kg of potassium sulfate compound fertilizer with a nitrogen, phosphorus and potassium potency ratio of 15-15-15 is applied at the same time; Compared with the conventional wheat cultivation technology, this application increases the covering of vinegar residue on the surface of the wheat field after sowing, which can reduce the water evaporation of the surface soil of the wheat field in saline-alkali land, maintain sufficient water content in the growth layer of the wheat root system in the winter drought season, and reduce weed damage at the same time. During the growth period, the salinity (conductivity) of saline-alkali soil and the concentration of chloride ions, which are more harmful to crops, are reduced, the growth of wheat seedlings and the whole growth period are promoted, and the yield of wheat is increased.

Description

technical field [0001] The invention relates to a method for improving the growth of low-yield farmland crops in saline-alkali land, in particular to a method for cultivating wheat in soil with a salinity of 0.3%-0.4%, and belongs to the crop cultivation technology. Background technique [0002] Wheat is an annual or perennial herbaceous plant belonging to the Gramineae family (Gramineae), and it is an important food crop worldwide. About 35% to 40% of the world's population takes wheat as their main grain (Jin Shanbao. Chinese Wheat Science [M]. Beijing: China Agricultural Press, 1996: 1~3.). my country's wheat is the second largest food crop after rice, with an annual planting area of ​​2.7×10 8 hm 2 About 30% of the country's cultivated land area. [0003] Saline-alkaline soils generally have a high salt content and are alkaline at the same time. Saline-alkali soil is widely distributed in more than 100 countries in the world, with a total area of ​​1.0×10 9 hm 2 . ...

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Problems solved by technology

[0007] The purpose of the present invention is: for the bad influence of the wheat field saline-alkali that develops on the beach of Jiangsu Province on the growth of wheat, it is urgently needed to improve the difficult problem of yield per mu. wheat method

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