Vol. 9, Issue 1 (2021)
Phosphorus management strategies to enhance P-use efficiency and sustainable crop production
Author(s): Basu Devi Yadav, Rajendra Kumar Yadav, Mahaveer Nogiya, MR Yadav, DM Mahala, SN Meena, Brijesh Yadav, AK Verma, Sunita Yadav, Shilpa Devi, Roshan Kumawat and Anju Bijarniya
Abstract: With increase in food grain production in India from 50.8 million tonnes (Mt) in 1950-51 to 295.67 Mt in 2019-2020, the production and consumption of phosphorus (P) fertilizer has also increased from 9.8 thousand tonnes in 1950-51 to 4790 thousand tonnes in 2019-2020 and from 6.9 thousand tonnes in 1950-51 to 7464 thousand tonnes in 2019-2020, respectively (FAI 2020). Phosphorus is the second important primary nutrient element after nitrogen. Low P use efficiency is the significant challenge for agricultural production on P-deficient soil as well as in acidic and calcareous soils (Shenoy et al. 2005). Acquisition of soil and fertilizer P by crops depends on soil and plant properties. Soil processes determining P availability to plants are P solubility/sorption, P transport, root/soil contact and mineralization/ immobilization (Horst et al. 2001). Agronomic strategies for enhancing P use efficiency includes selection of fertilizer, soil test based P application, methods of P fertilizer application, fertigation, residual P utilization by different crops, utilization of insoluble P sources by addition of organic matter and phosphate solubilizing microorganisms (PSM), integrated nutrient management (Subba Rao 2010). Improved P use efficiency has been observed by Mengel (1997) in acidic soil by applying P at the time of sowing and liming. The two main strategies which help plants to improve P use efficiency are (i) root-foraging strategies that improve P acquisition; and (ii) P-mining strategies to enhance the desorption, solubilization or mineralization of P from sparingly soluble sources in soil using root exudates (Richardson et al. 2011).
DOI: 10.22271/chemi.2021.v9.i1ax.11786
Pages: 3562-3567 | 490 Views 166 Downloads
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How to cite this article:
Basu Devi Yadav, Rajendra Kumar Yadav, Mahaveer Nogiya, MR Yadav, DM Mahala, SN Meena, Brijesh Yadav, AK Verma, Sunita Yadav, Shilpa Devi, Roshan Kumawat, Anju Bijarniya. Phosphorus management strategies to enhance P-use efficiency and sustainable crop production. Int J Chem Stud 2021;9(1):3562-3567. DOI: 10.22271/chemi.2021.v9.i1ax.11786
