Details

Autor(en) / Beteiligte

• Okebalama, Chinyere B.
• Safo, Ebenezer Y.
• Yeboah, Edward
• Abaidoo, Robert C.
• Logah, Vincent

Titel

Vegetative and reproductive performance of maize to nitrogen and phosphorus fertilizers in Plinthic Acrisol and Gleyic Plinthic Acrisol

Ist Teil von

• Journal of plant nutrition, 2019-04, Vol.42 (6), p.559-579

Ort / Verlag

Philadelphia: Taylor & Francis

Erscheinungsjahr

2019

Quelle

Taylor & Francis

Beschreibungen/Notizen

• Soil specific maize response to N and P may provide guidelines for improving nutrient management. Three replicates of N and P fertilizer combinations (N 0 P 0 , N 0 P 90 , N 120 P 0 , and N 120 P 90 ) were arranged in randomized complete block design on Plinthic Acrisol (PA) and Gleyic Plinthic Acrisol (GPA) in Ghana. Treatment effects on maize plant height and yield parameters were assessed. Plant height differed consistently with N 120 P 90 > N 0 P 90 > N 120 P 0 /N 0 P 0 from 3 to 7 weeks after planting on the GPA. On the GPA, grain yield ranged from 1.20 to 2.40 t ha −1 and increased by 10, 77 and 95% in the N 120 P 0 , N 0 P 90 and N 120 P 90 , respectively. Residual effect of N 0 P 90 and N 120 P 90 increased maize yields on the GPA than on the PA. Rather than N, P was more critical to maize performance and should be externally supplied not exceeding the critical level of N 0 P 60 (Plinthic Acrisol) and N 0 P 90 (Gleyic Plinthic Acrisol) for optimum maize yield.