Effect of nutrient management on yield, economics, water and energy use efficiency of maize (Zea mays) under conservation agriculture based maize-wheat (Triticum aestivum) system


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Authors

  • B R MEENA ICAR-Indian Agricultural Research Institute, New Delhi 110 012, India
  • C M PARIHAR ICAR-Indian Agricultural Research Institute, New Delhi 110 012, India
  • H S NAYAK ICAR-Indian Agricultural Research Institute, New Delhi 110 012, India
  • K PATRA ICAR-Indian Agricultural Research Institute, New Delhi 110 012, India
  • B RANA ICAR-Indian Agricultural Research Institute, New Delhi 110 012, India
  • A M ABDALLAH ICAR-Indian Agricultural Research Institute, New Delhi 110 012, India
  • G GAMBHIR ICAR-Indian Agricultural Research Institute, New Delhi 110 012, India
  • N RATHI ICAR-Indian Agricultural Research Institute, New Delhi 110 012, India
  • V K SINGH ICAR-Indian Agricultural Research Institute, New Delhi 110 012, India

https://doi.org/10.56093/ijas.v91i9.116101

Keywords:

Green Seeker, Nitrogen uptake, Permanent bed, Yield attributes, Zero tillage

Abstract

A field experiment was conducted under long-term conservation agriculture (CA)-based maize (Zea mays L.)-wheat (Tricum aestivum L.)-mungbean (MWMb) system at ICAR- IARI, New Delhi (2017-18 and 2018-19) in split-plot design to compute the yields, economic, water and energy use-efficiency. There were 3-tillage treatment in main-plots and 4-nutrient management options in sub-plots with 3-replications. Results of present study showed that the grain yield of maize was 21.1% higher in CA-based permanent bed (PB) than conventional till (CT) plots. Net returns and net benefit cost ratio in PB plots was higher by 46.1 and 55.4% compared to CT, respectively (2-year mean basis). Two year mean basis water use-efficiency (WUE), net energy output and energy use-efficiency (EUE) were higher by 17.0, 26.3 and 12.5% in PB plots than CT. No significant effect of tillage was observed on N, P and K content (grains and stover). However, the total N, P and K uptake in maize grains and stover was higher by 23.6, 24.5 and 22.4% under PB than CT plots, respectively. Among nutrient management options; 2-year mean basis maize grain yield was 31.6 and 29.7% higher in Green Seeker (GS) guided-N and site specific nutrient management (SSNM) plots than farmers fertilizer practice (FFP), respectively. Net returns and BC ratio were also higher by 51.4-53.4% and 41.35-42.6% in GS guided-N and SSNM than FFP plots, respectively. WUE, net energy output and EUE were also significantly higher in GS guided-N treatment than FFP. Total N, P and K uptake were also significantly higher in GS guided-N and SSNM plots compared to FFP.

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Submitted

2021-09-27

Published

2021-09-27

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How to Cite

MEENA, B. R., PARIHAR, C. M., NAYAK, H. S., PATRA, K., RANA, B., ABDALLAH, A. M., GAMBHIR, G., RATHI, N., & SINGH, V. K. (2021). Effect of nutrient management on yield, economics, water and energy use efficiency of maize (Zea mays) under conservation agriculture based maize-wheat (Triticum aestivum) system. The Indian Journal of Agricultural Sciences, 91(9), 1408–1412. https://doi.org/10.56093/ijas.v91i9.116101
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