The invention discloses a method for relieving inhibition of high-concentration
ammonium nitrogen in soil on growth of wheat at the
seedling stage. The method comprises the following steps of (1) 1 to 14 days after applying a
fertilizer to a wheat field, selecting
rhizosphere soil of wheat seedlings, and detecting the
ammonium ion concentration of the
rhizosphere soil of the wheat; and (2) determining the application amount of a water-soluble
potash fertilizer applied to the wheat field per mu according to the
ammonium ion concentration value detected in the step (1) so as to prevent or relieve the inhibition of the high-concentration
ammonium nitrogen in the soil on the growth of the wheat at the
seedling stage, wherein the water-soluble
potash fertilizer is selected from but not limited to
potassium dihydrogen
phosphate,
potassium monohydrogen
phosphate,
potassium phosphate,
potassium sulfate, potassium
chloride,
amino acid potassium salt, potassium fulvate and potassium humate. According to the method, by enhancing the
photosynthesis of the wheat and improving the
carbohydrate synthesis capacity, the accumulation of ammonium radicals (NH4 +) is reduced, and the
balance of plant hormones in roots is promoted, so that the inhibition of the high-concentration
ammonium nitrogen in the soil on the growth of the wheat at the
seedling stage is prevented or relieved.