Effects of levels and frequency of zinc sulphate application on yield and DTPA-Zn availability in maize-sunflower cropping system
Year: 2005
Type: article
Abstract: Five cycles of field experiments involving maize followed by sunflower were conducted during 1996-2001 in a clay loam soil at Agricultural College and Research Institute, Coimbatore. The results indicated that application of zinc sulphate @ 37.5 kg ha to first crop of maize followed by 12.5 kg ha¹ to all alternate sunflower crops increased the total yield of maize and sunflower together, showing beneficial resident effect of applied zine to previous crop, which received cumulatively 25% less zinc sulphate as compared to 12.5 kg ha-1 fo zinc sulphate applied to every crop in a sequence covering ten crops despite comparable yield were recorded among themselves. There was a build up of DTPA-Zn in the post harvest soil due to application of zinc sulphate, irrespective of levels, either to every crop or alternate crop over a period of time as against depletion of zinc observed in the treatments receiving only once and no zinc in the sequential experimentation.
Source: Madras Agricultural Journal
Authors: SHANMUGASUNDARAM R, SAVITHRI P
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: hybrid
OpenAlex ID: W4380607121