Influence of Phosphorus Fertilizer on Maize Vegetable (Zea may L.) in Soil Southern Vietnam

Abstract

Background: This study evaluated the effect of phosphate fertilizer dose, soil type, or both on the growth and yield of maize vegetable in soil with different P content of Southern Vietnam. Methods: This research was studied from 2015-2018. Experiment 1 was set up in pots with three phosphorus fertilizer levels and five soil types in a greenhouse at Can Tho University. Experiment 2 was set up at Tra Vinh sandy soil (Dystri-Gleyic-Arenosols). Result: The results showed that in the phosphorus-rich groups, there was no difference in the effect of phosphate dose on the growth and yield of maize vegetable, but there were differences between soil types. Differences in the development and yield of maize between soil types may be due to soil composition and pH. Maize plants adapted and yielded better on sandy soils (Dystri-Gleyic-Arenosols) compared to alluvial (Eutri-Mollic-Gleysols), alkaline (Umbri-Epiorthi-Thionic-Gleysols) and red soils (Hapli-Plinthic-Ferralsols). In addition, the total phosphorus content in fruit-bearing leaves was higher in the phosphorus-rich treatment than in the low phosphorus fertilizer application treatment. Still, no symptoms of excess phosphorus on maize vegetable was detected.