Abstract

This study was carried out with the aim of determining the appropriate plant (Kc) and Pan (Kp) coefficients for Class A Pan by using the irrigation program that was monitored by soil moisture in the potato (Solanum tuberosum L.). Irrigation treatments consisted of one irrigation interval (5 days) and five different levels (I₁₀₀, I₈₅, I₇₀, I₅₅, I₄₀) of soil water deficit measured before irrigations. Before thematic irrigations, all treatments were irrigated up to field capacity of the soil water content in 0–0.6 m depth. The results showed that as the water stress increased the yield and quality decreased in potatoes. Especially when more than 30% water deficiency was applied, a significant decrease in efficiency and quality was observed. The highest tuber yield per plant was obtained with 1.2498 kg in the first year and 1.2166 kg in the second year on I₁₀₀ treatment (p < 0.001). In the study, while the Kc values in the irrigation periods for the potato plant were 0.81 in the first year and 0.79 in the second year, Kp was determined as 1.23 and 1.20 for full irrigation (I₁₀₀) treatment, respectively.

摘要

进行这项研究的目的是通过使用灌溉程序来确定 A 类 Pan 的适当植物 (Kc) 和 Pan (Kp) 系数，该灌溉程序通过马铃薯 ( Solanum tuberosum L.) 的土壤水分进行监测。灌溉处理包括一个灌溉间隔（5天）和五个不同的水平（I ₁₀₀、I ₈₅、I ₇₀、I ₅₅、I ₄₀) 灌溉前测量的土壤水分亏缺。在专题灌溉之前，所有处理均灌溉至 0-0.6 m 深度土壤含水量的田间持水量。结果表明，随着水分胁迫的增加，马铃薯的产量和质量下降。特别是当缺水超过 30% 时，观察到效率和质量显着下降。I ₁₀₀处理的单株块茎产量最高，第一年为 1.2498 kg，第二年为 1.2166 kg ( p  < 0.001)。在研究中，虽然马铃薯植株第一年灌溉期的 Kc 值为 0.81，第二年为 0.79，但全灌溉 (I ₁₀₀ ) 处理的Kp 分别确定为 1.23 和 1.20 。