African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6578

Full Length Research Paper

Performance of baby corn (Zea mays L.) as influenced by spacing, nitrogen fertilization and plant growth regulators under sub humid condition in Rajasthan, India

Shankar Lal Golada*, Ganpat Lal Sharma and H. K. Jain
Department of Agronomy, Rajasthan College of Agriculture, Maharana Pratap University of Agriculture and Technology (MPUAT), Udaipur-313001, Rajasthan, India.
Email: [email protected]

  •  Accepted: 18 March 2013
  •  Published: 04 April 2013

Abstract

A field experiment was conducted during kharif 2010 and 2011 at Instructional farm of Rajasthan College of Agriculture Udaipur, Rajasthan, India to study the effect of crop spacing (45 × 20, 60 × 15 and 90 × 10 cm), nitrogen levels (60, 90 and 120 kg ha-1) and plant growth regulators (control, N-acetyl Aspartate (NAA) at 40 ppm and mepiquat chloride at 200 ppm) on yield attributes, yield and economics of baby corn. The crop spacing 60 × 15 cm significantly influenced yield attributes. Maximum green cob yield, baby corn yield and green fodder yield was recorded at 60 × 15 cm spacing which was higher (14.0, 24.3 and 8.8%, respectively) over 90 × 10 cm. Increasing nitrogen levels up to 90 kg ha-1 markably improved the yield attributes, yields and net returns. Application of 90 and 120 kg N ha-1 exhibited significant increase in green cob yield over 60 kg N ha-1. The results revealed that application of nitrogen up to 90 kg ha-1 level significantly increased green cob yield and baby corn yield in tune of 20.5 and 23.6% as compared to 60 kg N ha-1. The mepiquat chloride at 200 ppm exhibited highest yield parameters viz. cob length, cob girth, cob weight, corn length, corn girth, corn weight and cobs plant-1 . The crop sprayed with mepiquat chloride produced highest green cob yield (5903 kg ha-1), baby corn yield (2083 kg ha-1) and this was comparable with application of NAA. In case of green fodder yield, NAA at 40 ppm produced significantly highest green fodder yield (26.9 t ha-1) over mepiquat chloride at 200 ppm (22.1 t ha-1).

 

Key words: Spacing, nitrogen levels, plant growth regulator, baby corn.