Response to zinc, copper and iron and their critical levels for potato

Trehan, S.P. and Grewal, J.S. (1995) Response to zinc, copper and iron and their critical levels for potato. Journal of the Indian Society of Soil Science, 43 (1). pp. 89-91.

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In field trials on deep alluvial soil (Ustochrept) in Jalandhar, Uttar Pradesh in 1990/91, the effects of Zn, Cu and Fe were studied in potatoes cv. Kufri Chandramukhi. Trials on 16 fields compared soil application of 25 kg ZnSO4/ha with 2 foliar sprays of 0.2% ZnSO4, while on 12 fields soil application of 50 kg ferrous sulfate or 2 foliar sprays of 0.2% ferrous sulfate were compared, and on 13 fields 15 kg CuSO4 or foliar application of 0.2% CuSO4 were compared. The response to soil or foliar application of trace elements was generally similar. The critical deficiency limits for potatoes were calculated to be 0.75 mg/kg soil of DTPA-Zn, 0.32 mg/kg soil of DTPA-Cu and 6.6 mg/kg soil of DTPA-Fe

Item Type: Article
Uncontrolled Keywords: Potato, zinc, copper, iron, respons~, critical limits
Author Affiliation: Central Potato Research Station, Post Bag No. 1, Jalandhar, Indian Punjab 144 003, India
Subjects: Social Sciences > Agricultural Economics
Divisions: Other Crops
Depositing User: Ms K Syamalamba
Date Deposited: 08 Nov 2011 10:11
Last Modified: 08 Nov 2011 10:11
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