Correlation of soil-test values with the response of maize and sorghum to available Zn and P

Khan, A.A. and Zende, G.K. (1976) Correlation of soil-test values with the response of maize and sorghum to available Zn and P. Indian Journal of Agricultural Sciences, 46 (6). pp. 259-265.

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Abstract

10 or 20 p.p.m. Zn and P at 0.5 P or 1 P fixation-capacity were applied to a Zn-deficient medium-black soil and a Zn-sufficient lateritic soil. Available Zn, as determined by neutral NNH4OAc + 0.01% dithizone in CCl4, was positively correlated with DM production and Zn content and uptake in maize, and with DM of the succeeding sorghum crop in the medium black soil, but not in the lateritic soil. Available P as estimated with Olsen extractant in the medium-black soil and Bray P1 extractant in the lateritic soil was also highly correlated with DM yield, and the content and uptake of P in maize as well as DM yield in the subsequent sorghum. Adequacy of the available Zn and P in soils enhanced the uptake of each other, in spite of the antagonism in their plant content

Item Type: Article
Author Affiliation: Mahatma Phule Krishi Vidyapeeth, Rahuri 413 722, Maharastra, India
Subjects: Plant Production
Divisions: Sorghum
Depositing User: Ms K Syamalamba
Date Deposited: 18 Jul 2012 08:17
Last Modified: 18 Jul 2012 08:18
URI: http://eprints.icrisat.ac.in/id/eprint/6849

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