Coastal saline alkali soil treatment method for remarkably reducing salt stress to crops

The invention discloses a coastal saline alkali soil treatment method for remarkably reducing salt stress to crops. The method comprises four steps: rice planting; common seepweed herb plating; addition ofzeolite, lignite and powdered rock phosphate; and addition of soil conditioners for roots of plants during planting. Through the rice planting, salt is pressed to deep soil by utilizing irrigation and the soil fertility is improved by utilizing the rice planting; through the common seepweed herb plating, the salt of 0-30 cm plough layer soil is removed; through the addition of the zeolite, lignite and powdered rock phosphate, the physicochemical property of the saline alkali soil is effectively improved, and 2-5 parts of zeolite, 1-3 parts of lignite and 3-5 parts of powdered rock phosphate respectively are added; and through the addition of soil conditioners for roots of plants during planting, the rhizosphere soil is loosened to ensure that a barrier is formed between the crop rootsystems and surrounding s