Journals / Turkish Journal of Agriculture and Forestry / 2000 / Cilt: 24 - Sayı: 6

Effects of Humic Acid and Phosphorus Applications on Growth and Phosphorus Uptake of Corn Plant (Zea maysL.) Grown in a Calcareous Soil

Pages
663–668
DOI
—

Abstract

The aim of this study is to investigate the effects of different humic acid and phosphorus levels on corn plant ( Zea mays L.) growth and P availability in a calcareous soil. Four levels of P (0, 20, 40, 80 mgkg-1) and 3 levels of humic acid (0, 250, 500 mgkg-1) were used in the experiment. The results showed that the dry weight, plant P concentration, P uptake and residual available P amount increased with humic acid applications, and that the effect of humic acid on the above parameters combined with P fertilisation was higher than that of humic acid alone.

Özet

The aim of this study is to investigate the effects of different humic acid and phosphorus levels on corn plant ( Zea mays L.) growth and P availability in a calcareous soil. Four levels of P (0, 20, 40, 80 mgkg-1) and 3 levels of humic acid (0, 250, 500 mgkg-1) were used in the experiment. The results showed that the dry weight, plant P concentration, P uptake and residual available P amount increased with humic acid applications, and that the effect of humic acid on the above parameters combined with P fertilisation was higher than that of humic acid alone.

Keywords: phosphorus availability, soil factors, humic acid, cereals