Arulmani R
Sellamuthu K.M
*
Maragatham S
SENTHIL Alagarswamy
The final, formatted version of the article will be published soon.
ORIGINAL RESEARCH article
Front. Plant Sci.
Sec. Plant Nutrition
Volume 15 - 2024 |
doi: 10.3389/fpls.2024.1481882
This article is part of the Research Topic Adaptive Nutrient Management Systems for Plant Nutrition: Optimization, Profitability, and Ecosystem Assessment View all 15 articles
Development and validation of Soil Test Crop Response model for Beetroot (Beta vulgaris) grown in Ultisols of India
Provisionally accepted- Tamil Nadu Agricultural University, Coimbatore, India
Soil Test Crop Response (STCR), ancombined plant nutrient management system that enables to develop fertilizer prescription equations for balanced crop nutrition, higher yield, profitability, and better nutrient efficiency. Field trial were carried out on Typic Haplohmult soil of Nilgiris, Tamil Nadu during 2023-2024 by Implementing an Inductive combined with a targeted yield model. Field trial include a gradient experiment with a green viz., Chenopodium album; a test crop experiment with beetroot (Hybrid Improved Crystal) and a validation experiment with beetroot. First, the fertility gradient was ensured by the biomass yield and soil fertility. Then, test crop experiment with beet root was conducted in the same field to derive the basic parameters viz., Nutrient Requirement (NR), contribution of nutrients from fertilizers (C f ), contribution of nutrients from soil (C s ) and contribution of nutrients from the Farm Yard manure (C fym ). Using the basic parameters, fertilizer prescription equations were developed based on Integrated Plant Nutrition System and validated. We found that 0.38, 0.29, and 0.46 kg of N, P 2 O5, and K 2 O, respectively, were required for producing one quintal of beetroot tuber under the integrated approach. Readily customized of fertilizer nutrient doses was developed for varying soil test values and desired yield targets of beetroot, for both inorganic (NPK) alone and NPK + Farm Yard Manure (FYM). The model was validated in the same soil series with the achievement of 40 and 45 tonnes of beetroot ha -1 with 100.9% and 96.9% of yield achievement, respectively. The Soil analysis crop responsecombined Plant Nutrition System model proved that beetroot yield can be increased by 34.74%, in relation to the generally recommended dose This inductive method could save 37, 26 and 34 kg of Nitrogen, Phosphorus and Potassium, respectively when Nitrogen, Phosphorus, Potassium fertilizers are combined with 12.5 t ha -1 FYM as per soil test and targeted yield of beetroot.
Keywords: Beetroot, Fertilizer prescription, STCR-IPNS, Targeted yield model, Ultisols Comment [A1]: description Comment [A2]: description Comment [A3]: description Comment [A6]: Figure number changed due to delete of figure 4, 5, 9 Comment [A7]: Equationnumber :1 Comment [A8]: Equation number :2
Received: 16 Aug 2024; Accepted: 20 Dec 2024.
Copyright: © 2024 R, K.M, S, Alagarswamy, S.P, P and G. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence:
Sellamuthu K.M, Tamil Nadu Agricultural University, Coimbatore, India
Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.