Effect of zeolite and amino acid (arginine) spraying on physiological characteristics and nutritional content of potato plant

Abstract

The research was conducted in a private field in Ramadi city for the year 2024 to study the effect of zeolite and spraying with amino acid (arginine) on the physiological characteristics and nutritional content of potato plants. The research consisted of two factors, the first factor with three levels: Comparison, adding zeolite at a level of 200 g. plant-1 and Adding zeolite at a level of 400 g. plant-1. The second factor with four levels: Comparison (no spraying), Spraying with amino acid at a concentration of 2 ml. L-11, Spraying with amino acid at a concentration of 4 ml. L-1 and Spraying with amino acid at a concentration of 6 ml. L-1. The randomized complete block design (RCBD) was used with three blocks and the significant differences between the averages were tested according to the least significant difference (L.S.D) test at a probability level of 0.05. The results showed that the addition of zeolite and spraying with amino acid (arginine) had a significant effect by giving the highest values ​​in the indicators (percentage of nitrogen N , phosphorus P, potassium K in leaves) , percentage of starch ,  protein , nitrogen N, phosphorus P and potassium K in tubers ) compared with the control treatment that gave the lowest values ​​and the interaction treatment [adding zeolite at a level of 400 g. plant-1 and spraying with amino acid at a concentration of 6 ml. L-1) gave the highest values ​​for all indicators compared with the control treatment that gave the lowest rate for these traits.