تحليل تباين ملوحة المياه على إنتاج هكتار البطاطا حسب طريقة الري بولاية الوادي الجزائر

Abstract

In the last decade, the valley region in Algeria has become one of the most important regions that have a competitive advantage for the production of potatoes nationally. The region depends on the production of potatoes on the nature of production factors (soil, fertilization, irrigation ...) in particular and differentiated locally, making the yield of the crop different and fluctuating from product to product and season to season, and perhaps one of the most important factors affecting the productivity of potatoes in the valley is salinity of irrigation water Especially in the areas irrigated by the method of axial spray relative to the areas irrigated by the method of distillation. This study aimed to assess the extent of the effect of the irrigation method on the degree of influence of the salinity of irrigation water on the potato yield in the valley based on a sample of 97 potato products in the region during the fall season of 2020, and in order to test the homogeneity of the effect of salinity between the areas irrigated by spraying and the areas irrigated by distillation, we used the method Regression analysis by adopting a logarithmic - linear function model to estimate the salinity effect parameters between the two irrigation methods, and then test the significance of the effect difference between them. The results of the study model showed the negative effect of salinity on productivity as well as the fundamental difference in the effect of salinity between the two methods of sprinkler irrigation and distillation, where the degree of productivity affected by salinity of irrigation water was more severe in the areas irrigated by the method of spraying relative to the areas irrigated by the method of distillation. In the last decade, the valley region in Algeria has become one of the most important regions that have a competitive advantage for the production of potatoes nationally. The region depends on the production of potatoes on the nature of production factors (soil, fertilization, irrigation ...) in particular and differentiated locally, making the yield of the crop different and fluctuating from product to product and season to season, and perhaps one of the most important factors affecting the productivity of potatoes in the valley is salinity of irrigation water Especially in the areas irrigated by the method of axial spray relative to the areas irrigated by the method of distillation. This study aimed to assess the extent of the effect of the irrigation method on the degree of influence of the salinity of irrigation water on the potato yield in the valley based on a sample of 97 potato products in the region during the fall season of 2020, and in order to test the homogeneity of the effect of salinity between the areas irrigated by spraying and the areas irrigated by distillation, we used the method Regression analysis by adopting a logarithmic - linear function model to estimate the salinity effect parameters between the two irrigation methods, and then test the significance of the effect difference between them. The results of the study model showed the negative effect of salinity on productivity as well as the fundamental difference in the effect of salinity between the two methods of sprinkler irrigation and distillation, where the degree of productivity affected by salinity of irrigation water was more severe in the areas irrigated by the method of spraying relative to the areas irrigated by the method of distillation.