Legume Research
Web of Science
  • Year: 2023
  • Volume: 46
  • Issue: 12

Influence of irrigation scheduling and nutrient application on water use, productivity and profitability of groundnut (Arachis hypogaea L.)

  • Author:
  • P. Balasubramanian1,*, R. Babu2, C.R. Chinnamuthu3, K. Kumutha4, P.P. Mahendran5
  • Total Page Count: 7
  • Page Number: 1610 to 1616

1Horticultural Research Station, Tamil Nadu Agricultural University, Ooty-643 001, Nilgiris, Tamil Nadu, India

2Department of Agronomy, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Kudumiyanmalai-622 104, Pudukkottai, Tamil Nadu, India

3Department of Agronomy, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Coimbatore-641 003, Tamil Nadu, India

4Department of Agricultural Microbiology, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Madurai-625 104, Tamil Nadu, India

5Department of Crop Improvement, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Kudumiyanmalai-622 104, Pudukkottai, Tamil Nadu, India

*Corresponding Author: P. Balasubramanian, Horticultural Research Station, Tamil Nadu Agricultural University, Ooty-643 001, Nilgiris, Tamil Nadu, India, Email: agribalatnau1991@gmail.com

Online Published on 6 January, 2024.

Abstract

Irrigation and proper nutrient management that determines the productivity of the groundnut especially during the critical stages of the crop growth.

The experiments laid out in split plot design comprising of three levels of irrigation scheduling [0.8 IW/CPE ratio (I1), 0.6 IW/ CPE ratio (I2) and 0.4 IW/CPE ratio (I3)] in main plots and four nutrient management practices viz., N1- 75% of RDF with 5 t of charred rice husk, N2 - 50% of RDF with 5 t of charred rice husk, N3 - 75% of RDF with 5 t of charred rice husk along with seed treatment of Abuscular mycorrhiza and N4 - 50% of RDF with 5 t of charred rice husk along with seed treatment Arbuscular mycorrhiza in sub plots and replicated thrice.

Highest pod yield (2003, 2099 and 2063 kg ha-1 during summer, kharif and rabi 2017, respectively) of groundnut was registered with irrigation scheduling at 0.8 IW/CPE ratio along with 75% of RDF and 5 t of charred rice husk as basal with seed treatment of Arbuscular mycorrhiza. The maximum water use efficiency was also recorded under of the same treatment (4.16, 7.07 and 4.86 kg ha-1 mm-1 during the various seasons respectively). The highest B:C ratio of 2.2, 2.4 and 2.2 was recorded during summer, kharif and rabi 2017, respectively were also registered with same combination irrigation and nutrient management.

Keywords

Groundnut, Irrigation scheduling, Nutrient management, Water use efficiency, Yield