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Climate Change Adaptation: Real Time Nitrogen Management in Maize (Zea Mays L.) Using Leaf Colour Chart

R. K. Mathukia1 * , Puja Rathod1 and N. M. Dadhania1

1 Department of Agronomy, College of Agriculture, Junagadh Agricultural University, Junagadh, 362001 Gujarat India

DOI: http://dx.doi.org/10.12944/CWE.9.3.58

A field experiment was conducted at Instructional Farm, College of Agriculture, Junagadh Agricultural University, Junagadh during rabi 2011-12 and 2012-13 to study the real time nitrogen management using leaf colour chart (LCC) in maize (Zea mays L.). Basal dose of 20-50 kg N-P2O5/ha was applied in all the treatments. Top dressing of 60 or 80 N in form of Urea in two splits at LCC 2, 3, 4 and 5 were compared with fixed time N application [50 kg N/ha at 30 DAS + 30 kg N/ha at 60 days after sowing (DAS)]. Top dressing of 50 kg N/ha + 30 kg N/ha when LCC=4 or LCC=5 significantly improved growth and yield attributes viz., plant height, dry matter accumulation/plant, number of leaves/plant, stem diameter, number of internodes/ plant, leaf area index, cob length, cob girth, number of cobs/plant, number of grains/cob, grain weight/plant and 1000-grain weight along with higher grain and stover yields, grain protein content and economic returns over fixed time application of 50 kg N/ha at 30 DAS + 30 kg N/ha at 60 DAS.

Maize; Zea mays; Nitrogen; Leaf colour chart

Copy the following to cite this article:

Mathukia R. K, Rathod P, Dadhania N. M. Climate Change Adaptation: Real Time Nitrogen Management in Maize (Zea Mays L.) Using Leaf Colour Chart. Curr World Environ 2014;9 (3) DOI:http://dx.doi.org/10.12944/CWE.9.3.58

Copy the following to cite this URL:

Mathukia R. K, Rathod P, Dadhania N. M. Climate Change Adaptation: Real Time Nitrogen Management in Maize (Zea Mays L.) Using Leaf Colour Chart. Curr World Environ 2014;9(3). Available from:http://www.cwejournal.org/?p=7722

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