Noman, H.M. and Rana, D.S. and Rana, K.S. (2015) Influence of sulphur and zinc levels and zinc solubilizer on productivity, economics and nutrient uptake in groundnut (Arachis hypogaea). Indian Journal of Agronomy, 60 (2). pp. 301-306.
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Abstract
The field experiments were conducted over 2 consecutive rainy (kharif) (July to November) seasons of 2013 and 2014 at New Delhi, to evaluate the effect of 3 sulphur (S) levels (0, 20 and 40 kg S/ha), 4 zinc (Zn) levels (0, 2.5, 5.0 and 7.5 kg Zn/ha) and 2 zinc bio-fertilizer (Native zinc solubilizer) levels (Control and seed treatment with zinc bio-fertilizer) on the performance of groundnut (Arachis hypogaea L.). Sandy loam soil of the experimental field was low in available S and DTPA-extractable Zn. Application of S caused marked improvement in plant height, branches/plant, leaf area index (LAI), pods/plant and pod and haulms yields, net returns, S-content in kernel and S and Zn-uptake up to 40 kg S/ha. Based on 2 years average, application of 20 and 40 kg S/ha resulted in 23.4 and 31.4% increase in pod yield, 36.3 and 52.7% in haulms yield, 46.3 and 56.7% in net returns, 66.3 and 92.3% in S-uptake in kernel and 25.9 and 35.3 % in Zn-uptake/ha in kernel over control, respectively. Application of Zn had significant effect on growth and yield attributes, pod and haulms yields, shelling percentage, net returns and Zn-content and uptake in kernel only up to 5.0 kg Zn/ha. Application of 2.5, 5.0 and 7.5 kg Zn/ha resulted in 17.2, 21.1 and 13.6 % increase in pod yield, 36.1, 45.0 and 27.4% in net returns, 17.5, 18.5 and 6.3% in S-uptake and 29.4, 44.9 and 45.5% in Zn-uptake in kernel over control, respectively. Effect of Zn-bio-fertilizer was significant on growth and yield attributes (except kernels/pod), pod and haulms yields, shelling percentage and Zn-content and uptake. Due to application of Zn bio-fertilizer 4.7, 6.2, 9.2, 5.2 and 7.9% increase in pod yield, haulms yield, net returns, S-uptake in kernel and Zn-uptake in kernel was recorded over control. Based on two years average, response to S and Zn application was quadratic and economic optimum dose was worked out to be 39.0 and 4.5kg/ha, respectively. Hence application of 39kg S and 4.5 kg Zn/ha with Zn-solubilizer is recommended for improving the productivity and profitability of groundnut in sandy loam soils low in S and Zn.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Groundnut, Economics, Economic optimum dose, Nutrient uptake, Productivity, Sulphur, Zinc |
| Author Affiliation: | ICAR-Indian Agricultural Research Institute, New Delhi 110 012 |
| Subjects: | Plant Production Social Sciences > Agricultural Economics |
| Divisions: | Groundnut |
| Depositing User: | Mr B Krishnamurthy |
| Date Deposited: | 15 Oct 2015 10:17 |
| Last Modified: | 15 Oct 2015 10:17 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/13954 |
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