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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
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Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2018.7(10): 1435-1444
DOI: https://doi.org/10.20546/ijcmas.2018.710.159


Critical Limits of Phosphorus in Relation to the Growth and Dry Matter Yield of French Bean (Phaseolus vulgaris L.) in Acid Soils of Thoubal District, Manipur (India)
Herojit Singh Athokpam*, Rabichandra Khangembam, Nandini Chongtham,K. Nandini Devi, Naorem Brajendra Singh, Athokpam Sanatomba, Naorem Gopimohan Singh and P.T. Sharma
College of Agriculture, Central Agricultural University, Imphal-795004, India
*Corresponding author
Abstract:

In a pot culture experiment, the response of French bean (Phaseolus vulgaris L.), cv. Contender to phosphorus (P) was studied on 20 acidic paddy soils of Thoubal district, Manipur. All the collected soil samples were acidic in reaction varied from 4.61 to 6.26 with mean value of 5.48, organic carbon content 9.9 to 24.1 g kg-1, CEC 9.21 to 35.71 [cmol (p+)kg-1] and clay content ranged from 24.78 to 73.38 per cent. Addition of P fertilizer in the soils significantly increased the dry matter production and P uptake by the crop. The critical limit of the soils varied from 10.0 to 23.6 kg P2O5 ha-1 depending upon the method of P extraction. Bray P1 method showed the highest degree of correlation than other extractant used with dry matter yield (r=0.702**), P content (r=0.578*), P uptake (r=0.688**), Bray’s per cent yield (r=0.679**) and Bray’s per cent uptake (r=0.629**). Thus, the critical levels of P in soils and 40 days old French bean plants below which response to P fertilization may be expected are 21.2 kg P2O5 ha-1 and 0.29 per cent P, respectively.


Keywords: Acidic soils, Dry matter, P uptake, French bean, Critical P concentration, Bray’s per cent yield
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How to cite this article:

Herojit Singh Athokpam, Rabichandra Khangembam, Nandini Chongtham, K. Nandini Devi, Naorem Brajendra Singh, Athokpam Sanatomba, Naorem Gopimohan Singh and Sharma, P.T. 2018. Critical Limits of Phosphorus in Relation to the Growth and Dry Matter Yield of French Bean (Phaseolus vulgaris L.) in Acid Soils of Thoubal District, Manipur (India).Int.J.Curr.Microbiol.App.Sci. 7(10): 1435-1444. doi: https://doi.org/10.20546/ijcmas.2018.710.159