ISSN: 0973-7510

E-ISSN: 2581-690X

Saraswathi1, Vishawanath Shetty1, M. Ashwini2, V.P. Santhosha1 and Netravati3
1Department of Soil Science and Agricultural Chemistry, UAHS, Shimoga – 577 204, India.
2Department of Agronomy, UAHS, Shimoga – 577204, India.
3Department of Genetics and Plant Breeding, UAHS, Shivamogga – 577 204, India.
J. Pure Appl. Microbiol., 2016, 10 (2): 1565-1571
© The Author(s). 2016
Received: 11/01/2016 | Accepted: 01/02/2016 | Published: 30/06/2016
Abstract

A field experiment was conducted on alfisols during 2013 of Zonal Agricultural and Horticultural Research station, college of Agriculture, Navile, shimoga. To study the fertilizer use efficiency in ragi (Eleusine coracona L.) under rainfed conditions. A total of nine treatments were tried in a Randomized Complete Block Design (RCBD) with three replications. The treatments comprise of RDF + compost 10 t ha-1, RDF + 50 % NK + compost 10 t ha-1, STCR based NPK + compost 10 t ha-1, STL based NPK + compost 10 t ha-1,RDF through enriched compost, RDF + 50% NK through enriched compost, STCR based through enriched compost, STL based through enriched compost, with a control. The results revealed that application of STCR based NPK and compost 10 t ha-1 for targeted yield 40 q ha-1 recorded a highest grain yield (3238.00 kg ha-1) and straw yield (8926.00 kg ha-1). The percent deviation for targated yield of 40 q ha-1 (19.05 %).Similarly higher uptake was recorded in STCR based NPK + compost 10 t ha-1 both in grain and straw. However, the NUE and AUE was highest in STCR based NPK and compost 10 t ha-1 for targeted yield 40 q ha-1. The highest physiological use efficiency was recorded in control plot (no fertilizer). The highest partial factor productivity was recorded in STCR based NPK + compost 10 t ha-1. The STCR approach was better for achieving the higher yield and higher nutrient use efficiency.

Keywords

Soil test crop response (STCR); Targated yield; Nutrient use efficiency; Agronomic use efficiency.

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© The Author(s) 2016. Open Access. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License which permits unrestricted use, sharing, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.