NDLI: Use of a Critical Phosphorus Dilution Curve to Improve Potato Crop Nutritional Management

Content Provider	Springer Nature Link
Author	Zamuner, Ester C. Lloveras, Jaume Echeverría, Hernán E.
Copyright Year	2016
Abstract	Plant diagnostic methods to determine P deficiencies need the definition of a critical concentration value which represents the minimum P concentration required to achieve maximum growth. The critical P concentration (Pc) has not been determined for potato. We designed a five years experiment with the objective of using the relationship between P concentrations and total dry matter (TB) yield to determine and validated the Pc, expressed as a function of TB. The Pc was described by the model: 3.919TB $^{-0.304}$ where total biomass (TB) ranged from 1 to 16 Mg ha$^{−1}$. The P nutritional index (PNI), which is the ratio between the measured whole plant P concentration and Pc, was associated with the relative tuber yield measured at harvest. The results from this study support the use of PNI from 60 to 80 days after planting to determine potato crop P nutritional status.Los métodos de diagnóstico en plantas para determinar las deficiencias en P necesitan la definición de un valor de concentración crítica, el cual representa la concentración mínima de P requerida para alcanzar el máximo crecimiento. La concentración crítica de P (Pc) no ha sido determinada para papa. Nosotros diseñamos un experimento de cinco años con el objetivo de utilizar la relación entre las concentraciones de P y el peso total del rendimiento de materia seca (TB) para determinar y validar la Pc, expresada como una función de TB. Se describió a la Pc por el modelo: 3.919TB -0.304, en donde la biomasa total (TB) fluctuó de 1 a 16 Mg ha$^{−1}$. El índice nutricional de P (PNI), que es la proporción entre la medida de la concentración de P de la planta completa y la Pc, se asoció con el rendimiento relativo de tubérculo, cuantificado a la cosecha. Los resultados de este estudio respaldan el uso de PNI de 60 a 80 días después de la siembra para determinar el estatus nutricional del P del cultivo de papa.
Starting Page	392
Ending Page	403
Page Count	12
File Format	PDF
ISSN	1099209X
Journal	American Potato Journal
Volume Number	93
Issue Number	4
e-ISSN	18749380
Language	English
Publisher	Springer US
Publisher Date	2016-03-22
Publisher Institution	Potato Association of America
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Phosphorus nutrition index Solanum tuberosum L. Fertilization Total biomass Biomass partitioning Plant Sciences Agriculture Plant Genetics & Genomics Plant Breeding/Biotechnology Plant Pathology
Content Type	Text
Resource Type	Article
Subject	Plant Science Agronomy and Crop Science

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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