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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2019 - IJCMAS--ICV 2019: 96.39 For more details click here
National Academy of Agricultural Sciences (NAAS) : NAAS Score: *5.38 (2020) [Effective from January 1, 2020]For more details click here

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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2019: 96.39
Index Copernicus ICI Journals Master List 2019 - IJCMAS--ICV 2019: 96.39
For more details click here

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Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2020.9(10): 2052-2061
DOI: https://doi.org/10.20546/ijcmas.2020.910.251


Estimation of Critical Limits of Zinc in Soil and Plant for Predicting Response of Maize (Zea mays L.) to Zinc and Nutrient Uptake  in Acid Soils, Manipur
Pawan Kumar, Herojit Singh Athokpam*, R. K. Kumarjit Singh, Konthoujam Nandini Devi and Naorem Okendro Singh
Department of Soil Sc. & Agricultural Chemistry, College of Agriculture, Central Agricultural University, Imphal, India

*Corresponding author
Abstract:

A pot experiment was conducted in 2018 to assess the effects of zinc fertilization on dry matter yield and nutrients uptake of hybrid maize. The treatments consisted of three doses: 0.0, 2.5 and 5.0 kg Zn ha-1 as ZnSO4.7H2O and hybrid maize variety PAC-740 was as test crop arranged in a completely randomized block design (RCBD) with three replications. The soils were acidic in nature, EC were low, organic carbon in the soils were fairly high (mean 17.71 g kg-1) and the mean CEC of the soils was 16.36 [cmol(P+)kg-1]. All the collected soil samples were clay in textural class. The results showed the addition of Zn substantial differences in dry matter yield and nutrients uptake of hybrid maize. Positive and significant correlations were obtained between DTPA-Zn and Bray’s per cent yield (r=0.444*), dry matter yield in control (r=0.916**), Zn concentration in control (r=0.966**), Zn uptake in control (r=0.959**) and Bray’s per cent uptake (r=0.492*). The critical limits of Zn in soils and 45 days old maize plant was 0.88 mg kg-1 and 22 mg kg-1, respectively. The study concludes that, on the basis of critical limits in soil and maize plant, Zn fertilization may be carried out for economic yield.


Keywords: Acid soil, Clay, Dry matter, Nutrients uptake, Critical limit, Bray’s per cent yield
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How to cite this article:

Pawan Kumar, Herojit Singh Athokpam, R. K. Kumarjit Singh, Konthoujam Nandini Devi and Naorem Okendro Singh. 2020. Estimation of Critical Limits of Zinc in Soil and Plant for Predicting Response of Maize (Zea mays L.) to Zinc and Nutrient Uptake in Acid Soils, Manipur.

Int.J.Curr.Microbiol.App.Sci. 9(10): 2052-2061. doi: https://doi.org/10.20546/ijcmas.2020.910.251