Interactive Effects of Boron and Humic Acid on the Growth and Nutrient Status of Maize Plant (Zea mays L.)

Mehmet Rüştü Karaman *

Department of Medical and Aromatic Plants, Afyon Kocatepe University, Afyon, Turkey.

Metin Turan

Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, İstanbul, Turkey.

Ayhan Horuz

Department of Soil Science and Plant Nutrition, Faculty of Agriculture, Ondokuz Mayıs University, Samsun, Turkey.

M. Şefik Tüfenkçi

Department of Soil Science and Plant Nutrition, Faculty of Agriculture, Van Yüzüncü Yıl University, Turkey.

Aydin Adiloğlu

Department of Soil Science and Plant Nutrition, Faculty of Agriculture, Namık Kemal University, Tekirdağ, Turkey.

*Author to whom correspondence should be addressed.


Abstract

Development of the methods decreasing boron (B) toxicity to agricultural crops is a high priority. The use of alternative organic material sources such as leonardite based humic substances  (H.A.) could be used to control B balance in  soils. For this aim, a pot experiment, based on a completely randomized design with three replications, was conducted using the soil of calcareous usthochrepts. In the research, maize variety of ADA-9510 (Zea mays L.), which was obtained from Central Anatolia Region, was used. In the experiment, leonardite based humic substance (12% humic acid) at the levels of 0, 60, 120 mg kg-1 were used as humic material source, which was developed by Turkish Coal Corporations Foundation. Boron fertilizer at the levels of 0, 10, 20 and 30 mg B kg-1 were used in the form of H3BO3. The plants were harvested after 56 days, and dry weights in top of maize plants were recorded. Macro and micro nutrient concentrations of the plants were also determined. Dry matter yields of maize plants were significanly affected by the applications of H.A. and B fertilizer, whereas dry matter yield was decreased by the application of higher B at the rate of 30 mg kg-1 without H.A application. Thus, results of this study clearly showed that there was a close sinergism between the H.A. and B applications with regard to B toxicity tolerance of maize plants. The maximum dry matter yields of 50.71 and 51.09 g pot-1 were obtained by the applications of 20 mg B kg-1together with H.A. applications at the rates of 60 and 120 mg  kg-1, respectively. Depending on H.A. applications, B contents of maize plants varied between 32.18 and 35.02 mg kg-1.

Keywords: Maize plant, humic acid, leonardite;, boron fertilizer, boron toxicity, `


How to Cite

Karaman, Mehmet Rüştü, Metin Turan, Ayhan Horuz, M. Şefik Tüfenkçi, and Aydin Adiloğlu. 2017. “Interactive Effects of Boron and Humic Acid on the Growth and Nutrient Status of Maize Plant (Zea Mays L.)”. International Journal of Plant & Soil Science 19 (2):1-9. https://doi.org/10.9734/IJPSS/2017/36430.