Interaction Effect of Zinc and Nitrogen on Growth and Yield of Barley ( Hordeum vulgare L.) on Typic Ustipsamments

摘要

In a field experiment on loamy sand soil (Typic Ustipsamments), application of zinc and nitrogen enhanced the grain and straw yield of barley ( Hordeum vulgare L.). Grain and straw yield increased significantly with the application of Zn and N at the rate of 5.0 kg Zn ha^-1 and 60 kg N ha^-1, respectively. Yield component s like effective tillers, ear length, number of grains per ear and test weight increased significantly with the application of 5.0 kg Zn and 60 kg N ha^-1 as compared to lower levels. Higher doses of Zn and N increased yield and yield components non-significantly. The interaction effect of ZnxN on grain yield was found to be significant. The combined application of 7.5 kg Zn along with 90 kg N ha^-1 registered the maximum grain yield of 49.20 q ha^-1 and straw yield of 72.6 q ha^-1 which was 21.17 and 28.58 q ha^-1 additional over control.