Effect of the partitioning of potassium fertilizer by adding to soil and spraying on the growth 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 500 grain, dry matter weight and grain yield of corn.2. The partitioning of potassium fertilizer gave significant effect on the height of plants, 500 grain, dry matter weight and grain yield.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 plant height, 500 grain, dray matter weight and grain yield.