USING DIFFERENT MEASUREMENT METHODS TO ESTIMATE WATER CONSUMPTION WITH SOME WATER STANDARDS, GROWTH AND YIELD OF STRAWBERRIES UNDER SURFACE DRIP-IRRIGATION

Abstract

A field experiment was conducted in Anbar Governorate, Ramadi, Sufia area in the spring of 2018. It aimed to study the effect of using different methods to measure water consumption in some water standards, plant growth and yield indicators, and some soil physical characteristics under drip irrigation. The field was divided into three replicates including the following methods: evaporation basin (EB), Ghabari equation (GE) and Gravimetric moisture (GM). Analysis was carried out according to Randomized complete block design (RCBD) using SPSS.24. The results showed that the water consumption of the strawberry crop was 29.17, 34.50 and 40.57 cm for the GM, EB and GE respectively. The crop coefficient was 0.37, 0.75 and 0.48 for the beginning, middle and end of the growth stage respectively. The weighted moisture method significantly increased the efficiency of water use by 1.88 kg-3 compared to 1.62 and 1.43 kg-3 for EB and GE respectively. While the rate of plant height showed a significant differences, which amounted to 23.25 cm for the GE compared to 19.33 and 21.00 cm for the GM and EBs, respectively. The length of the roots had significant differences, which amounted to 33.40 cm for the treatment of weighted moisture compared to 30.00 and 28.50 cm for the EB and GE, respectively. The variation analysis table showed significant differences in the dry weight of the vegetative part, where it reached 19.25 g for the GE compared to 15.50 and 17.65 g for the GM and EB respectively and there was no significant difference in the overall yield rate.