Influence of Dates of Sowing and Nitrogen Levels on Growth and Yield of Kharif Maize under Irrigated Conditions in South Telanagana Agro-climatic Zone of Andhra Pradesh, India

Authors

  • P. Leela Rani Department of Agronomy, College of Agriculture, Rajendranagar, Hyderabad, A.P. (500 030), India
  • G. Sreenivas Agromet-Cell, Agricultural Research Institute, Rajendranagar, College of Agriculture, Rajendranagar, Hyderabad, A.P. (500 030), India
  • D. Raji Reddy Agromet-Cell, Agricultural Research Institute, Rajendranagar, College of Agriculture, Rajendranagar, Hyderabad, A.P. (500 030), India
  • V. Praveen Rao Department of Agronomy, College of Agriculture, Rajendranagar, Hyderabad, A.P. (500 030), India
  • K. Surekha Directorate of Rice Research, College of Agriculture, Rajendranagar, Hyderabad, A.P. (500 030), India
  • A. Siva Sankar Department of Plant Physiology, College of Agriculture, Rajendranagar, Hyderabad, A.P. (500 030), India

Keywords:

Maize, sowing date, nitrogen, yield, net returns

Abstract

An Experiment was carried out during kharif 2009 and 2010 at Agricultural Research Institute, Rajendranagar, Hyderabad, India. with four dates of sowing (7th July, 21st July, 6th and 22nd Aug in 2009 and 18th June, 02nd July, 17th July and 02nd Aug in 2010) as main plot and five nitrogen levels (N0: 0 kg ha -1(control), N1:100 kg ha -1, N2: 200 kg ha -1, N3:300 kg ha -1and N4: 400 kg ha -1) as sub-plot in split plot design replicated thrice. In 2009, 21-July sown crop recorded significantly higher plant height (185 cm), LAI (2.489), dry matter (103.7 g plant-1), grain (6809 kg ha-1) and stover yield (6590 kg ha-1), harvest index (47.9), net returns (` 30429 ha-1) and benefit cost ratio (2.08), and was on par with 7th July sown crop. On the other hand, in 2010, plant height (175 cm), LAI (2.464), dry matter (89.9 g plant-1), grain yield (6605 kg ha-1), stover yield (6537), harvest index (47.2), net returns (` 28770 ha-1) and benefit cost ratio (2.01) of 18th June sown crop was on par with 2nd July sown crop. Significantly higher growth, yield, (7778 kg ha-1, 7646 kg ha-1), HI (51.3, 51.7), net returns (` 38502 and 37469) and benefit cost ratio (2.37 and 2.39) was observed with 200 kg N ha-1 respectively during both the years of study. Sowing beyond 21st July in 2009 and 17th July in 2010 reduced the grain yield by 23% and 14% respectively. 

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Published

2023-05-03

How to Cite

1.
Rani PL, Sreenivas G, Reddy DR, Rao VP, Surekha K, Sankar AS. Influence of Dates of Sowing and Nitrogen Levels on Growth and Yield of Kharif Maize under Irrigated Conditions in South Telanagana Agro-climatic Zone of Andhra Pradesh, India. IJBSM [Internet]. 2023 May 3 [cited 2024 Nov. 14];4(Mar, 1):034-42. Available from: http://ojs.pphouse.org/index.php/IJBSM/article/view/323

Issue

Vol. 4 No. Mar, 1 (2013)

Section

Articles

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