Effect of the partitioning of potassium fertilizer by adding to soil and spraying on leaf area, protein and yield of (Zea mays L.)

Abstract

A field experiment was conducted at Hussainyah Province of Karbala /Iraq to study the effect of the partitioning of potassium fertilizer by adding to soil and spraying on growth and yield of Maize (Zea mays L.) var.synthesiser 5012. The experiment included studying two factors. First factor included partitioning of potassium fertilizer applied in soil of five batches (1, 2, 3, 4 and 5). Second factor partitioning of potassium fertilizer applied in soil + Concentration of 2000 mg K.L-1. The experiment was designed as RCBD. The result showed the following points:1. Adding Potassium fertilizer to soil and spray has significant effect on the dry matter weight , grain yield of corn and protein.2. The partitioning of potassium fertilizer gave significant effect on the leaf area, dry matter weight , grain yield and protein.3. The interaction between partitioning of potassium fertilizer applied in soil and partitioning of potassium fertilizer applied in soil + Concentration of 2000 mg K.L-1. was significantly increased the leaf area, dray matter weight , grain yield and protein