International Journal of Chemical Studies
  • Printed Journal
  • Indexed Journal
  • Refereed Journal
  • Peer Reviewed Journal
P-ISSN: 2349-8528, E-ISSN: 2321-4902   |   

Vol. 13, Issue 1 (2025)

Balanced nutrients approach through fertigation on bulb yield, nutrients use efficiencies and economics of onion (Allium cepa L.) in shallow black soils of Karnataka


Author(s): Kumara BH, SN Honnali, PS Kanannavar and Punitha BC

Abstract: A field experiment was carried out at Irrigation Water Management Research Centre, Arabhavi, Karnataka, during Kharif 2023-24 to know the effect of application of nitrogen, phosphorus and potassium through fertigation on yield and economics of onion (Allium cepa L.) in shallow black soils. The design of experiment was Randomized Complete Block Design (RCBD) with 10 treatment combinations with different level viz. 100 per cent and 75 per cent of RDF applied through fertigation by use of completely water-soluble fertilizers in different splits as compared to basal application of conventional fertilizer. Results of the experiment revealed that application of 25 per cent of RDF as basal and 75 per cent of recommended dose of N, P and K through fertigation recorded significantly higher yield (37.5 t ha-1), net return (383671 ha-1) and B: C ratio (1.77). The 100% soil application of RDF was recorded highest gain or soil buildup of soil available N (76 kg ha-1) P2O5 (11.7 kg ha-1) and K2O (41.3 kg ha-1) followed by the application of 25 per cent of RDF of NPK as basal and 75 per cent of RDF of NPK through fertigation results in gain or build of N (69.7 kg ha-1) P2O5 (11.0 kg ha-1) and K2O (38.7 kg ha-1).

Pages: 31-35  |  39 Views  18 Downloads

download (2945KB)

International Journal of Chemical Studies International Journal of Chemical Studies
How to cite this article:
Kumara BH, SN Honnali, PS Kanannavar, Punitha BC. Balanced nutrients approach through fertigation on bulb yield, nutrients use efficiencies and economics of onion (Allium cepa L.) in shallow black soils of Karnataka. Int J Chem Stud 2025;13(1):31-35.
 

Call for book chapter
International Journal of Chemical Studies