Aiming at the problem of soil salinization in Shendong mining area, based on the saline alkali soil improved by using desulfurized gypsum and fly ash, the influence of irrigation frequency and irrigation amount on salt removal and crop yield in the soil salinization area of loess subsidence area was studied in depth. In order to prevent the land salinization caused by improper irrigation and improve the saline alkali soil by planting crops, crops should be improved at the same time the yield provides a theoretical basis. In this paper, corn was used as a salt tolerant experimental plant. Under the same irrigation quota, different irrigation frequencies were set to study the relationship between irrigation frequency and the growth of vegetation, crop yield and soil salinization. The conclusions are as follows: (1) under the same irrigation amount, in a certain range, the relationship between irrigation frequency and vegetation growth and crop yield is that, with the increase of irrigation frequency, crop yield also increases; (2) under the same irrigation amount, the relationship between irrigation frequency and soil salinization is that high frequency irrigation can inhibit soil salinization High frequency irrigation has leaching effect on soil salt; (3) when the irrigation amount is not fixed, large amount of single frequency irrigation should be avoided.

Yangnan Guo, Guoqing Chen, Jing Chen, Miaomiao Zhang, Li Bin, Li Qiang, Chang Jianhong, Mingjiu Wang. Effect of irrigation on crop yield in Shendong saline alkali area. Academic Journal of Engineering and Technology Science (2020) Vol. 3 Issue 7: 49-66. https://doi.org/10.25236/AJETS.2020.030706.

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