Effect of Nano-Drip Irrigation and Crude Oil Application on Some Soil Physical Properties and Maize (Zea Mays L.) Production

Abstract

A two factorial field experiment was conducted in loam soil as randomized complete block design with three replications during the spring season 2021, in Al-Hamidiyah research station (latitude33𝑜 27՚ 11.9՚N, longitude 43𝑜 23՚ 025՚𝐸(. To study the effect of nano-drip irrigation on soil bulk density, mean weight diameter and maize production. The first factor included crude oil application with two levels i.e., 1% and 0% while the second factor was two levels of irrigation, namely surface and sub-surface drip irrigation. The class A evaporation pan was used to determine the intervals between the irrigation events. The irrigation process was conducted when 50% of the available water is used. The soil bulk density, porosity, mean weight diameter and maize production were recorded. The obtained result showed that the lowest and highest soil bulk density were 1.37 and 1.62 Mg m-3 for the treatment SDIM. While the highest porosity was resulted from the treatment SSDIM reached 47%. The highest mean weight diameter was obtained from the treatment SSDIM by giving 0.39. Regarding the maize production, the highest yield was 1.399 kg.m-3 resulted from the treatment SSDIM.