Influence of soil applied zinc on productivity of soybean (Glycine max) in south-western Rajasthan

GAJANAND JAT; SHANTI KUMAR SHARMA; R H MEENA; DEVENDRA JAIN; ROSHAN CHOUDHARY; R S CHOUDHARY; S K YADAV; H K SUMERIYA; B G CHHIPA

doi:10.56093/ijas.v91i6.114298

Authors

GAJANAND JAT Rajasthan College of Agriculture, Maharana Pratap University of Agriculture and Technology, Udaipur, Rajasthan 313 001, India
SHANTI KUMAR SHARMA Rajasthan College of Agriculture, Maharana Pratap University of Agriculture and Technology, Udaipur, Rajasthan 313 001, India
R H MEENA Rajasthan College of Agriculture, Maharana Pratap University of Agriculture and Technology, Udaipur, Rajasthan 313 001, India
DEVENDRA JAIN Rajasthan College of Agriculture, Maharana Pratap University of Agriculture and Technology, Udaipur, Rajasthan 313 001, India
ROSHAN CHOUDHARY Rajasthan College of Agriculture, Maharana Pratap University of Agriculture and Technology, Udaipur, Rajasthan 313 001, India
R S CHOUDHARY Rajasthan College of Agriculture, Maharana Pratap University of Agriculture and Technology, Udaipur, Rajasthan 313 001, India
S K YADAV Rajasthan College of Agriculture, Maharana Pratap University of Agriculture and Technology, Udaipur, Rajasthan 313 001, India
H K SUMERIYA Rajasthan College of Agriculture, Maharana Pratap University of Agriculture and Technology, Udaipur, Rajasthan 313 001, India
B G CHHIPA Rajasthan College of Agriculture, Maharana Pratap University of Agriculture and Technology, Udaipur, Rajasthan 313 001, India

https://doi.org/10.56093/ijas.v91i6.114298

Keywords:

Economics, Productivity, Soybean, Uptake, Zinc

Abstract

A field experiment was conducted to study the influence of soil applied zinc on productivity, nutrient uptake and profitability of soybean (Glycine max L.) under Typic Haplustepts soil of sub-humid southern plain and aravalli hills region of Rajasthan during kharif 2016 and 2017. The treatments were consisted of five levels of zinc, viz. zero (control), 3 kg Zn/ha, 4 kg Zn/ha, 5 kg Zn/ha and 6 kg Zn/ha with four replications. Results revealed that significantly (P=0.05) maximum number of pods per plant, number of seeds per pod, test weight, seed yield, haulm yield, biological yield, nutrient content and uptake (N, K and Zn) in seed and haulm, net return and B:C ratio were recorded with the application of zinc @ 6 kg/ha along with the recommended dose of fertilizer (NPK) during 2016-17 and in pooled basis. However, the increase was significant up to 5 kg Zn/ha during both the years as well as in pooled analysis which was found statistically at par with 6 kg Zn/ha. Whereas, the application of zinc significantly decreased the phosphorus content in seed and haulm as compared to control and phosphorus uptake by seed and haulm was found to be non-significant with the application of zinc during both the years as well as in pooled analysis. The application of recommended dose of fertilizer along with combined application of Zn @ 5 kg/ha offered the best combination in realizing maximum yield of soybean and maximizing the economics both in absolute terms (net returns) and benefit-cost ratio.

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