Irrigation Frequencies and Corn (Zea mays L.) Yield Relation in Northern Turkey

Abstract

A field experiment was conducted during summer season of 2005 at the Research Station (altitude 180 m above sea level, 41 degrees 21' N and 36 degrees 15'E) Faculty of Agriculture, Ondokuz Mayis University, Samsun, Turkey. Experiment consisted of three irrigation levels and a non-irrigation level. Drip irrigation treatments consisted of three soil water deficits in the 90 cm soil profile depth was replenished to field capacity. Irrigation treatments were A: no irrigation, B: irrigation at 50% of available soil water capacity, C: irrigation at 30% of available soil water capacity, D: irrigation at 15% of available soil water capacity. The average seasonal water use values ranged from 257.14 to 285.71 mm in corn treatments. Irrigation frequencies (intervals) significantly affected corn crop yields. The average corn grain yields varied from 7.98 to 29.16 t ha(-1). The treatment D was recorded significantly higher corn grain yield 29.16 t ha(-1) compared to B (21.59 t ha(-1)); C (19.15 t ha(-1)) and A (7.98 t ha(-1)), respectively. According to research results, the maximum corn grain yield was obtained when the corn plants were irrigated at 15% of available soil water capacity to field capacity.

Effect of Water Stress on Maize Grown under Drip Irrigation System

“…It is clear that all the measured growth characters negatively affected by the lower water supply treatment as compared with the normal water supply treatment in both seasons. These results are in agreement with those ob- Kara and Biber (2008). .…”

Evaluatıon of growth and yıeld traıts ın corn under ırrıgatıon regımes ın sub-tropical climate

“…In this research, irrigation is the main factor determining the yield. This result is consistent with the findings of Karam et al (2003), Stone et al(2006), Kara & Biber (2008), Farré & Faci (2009) and Abd el-wahed et al(2015 those who reported reduction in grain and dry matter yield, and leaf area index by deficit irrigation conditions. The water stress (deficit water) remarkably influenced productivity and quality in maize Barutcular et al, 2016 a;Barutcular et al, 2016 b;EL Sabagh et al, 2017).…”

“…This might be because of the availability of water supply. Maize straw yield per plant increased significantly by amount of irrigation water and irrigation frequency (Kara & Biber, 2008;Yazar et al, 2009;Farre & Faci, 2009 The maximum mean maize straw yield was achieved from full irrigation (Yazar et al, 2012). However, Yildirim & Kodal (2008) reported that straw yields did not improve thought adding excessive irrigation.…”

“…This result might probably be due to availability of irrigation water enhanced the production of more roots. However, water availability is usually the most important natural factor limiting expansion and development of roots (Kara &Biber, 2008;Yazar et al, 2009;Farre & Faci, 2009 . This might be because of the availability of water supply.…”

“…For this reason, it is necessary to determine the water regimes that achieving the optimum yield. The production of Maize can be improved positively by sufficient amount of irrigation (Kara & Biber, 2008;Yazar et al, 2009;Farré & Faci, 2013). In field crops, a wellarranged deficit irrigation might maximize water productivity over an area when full irrigation is not possible (Fereres & Soriano, 2007).…”