Abstract:
Micronutrients play a
significant role in various plant metabolic
processes and are required in much smaller
amount by the plants as compared to the
macronutrients. An experiment was
conducted during 2011, at the Agronomic
research area, University of Agriculture,
Faisalabad, Pakistan, to investigate the
response of autumn planted maize to ZnSO4
and MnSO4 levels (10, 20 and 30 kg ha-1)
and in combinations (5 kg ha-1 ZnSO4 + 5
kg ha-1 MnSO4, 10 kg ha-1 ZnSO4 + 10 kg
ha-1 MnSO4 and 15 kg ha-1 ZnSO4 + 15 kg
ha-1 MnSO4). The randomized complete
block design (RCBD) having three
replicates was used with plot size of 3 m x 6
m. The crop was planted on ridges 75 cm
apart with recommended plant to plant
distance of 25 cm. Maximum values for
plant height at maturity (225 cm), cob
diameter (4.29 cm), number of grains per
cob (415), biological yield (20.15 tons ha-1),
grain yield (7.42 tons ha-1) and seed protein
content (8.96%) were recorded where 15 kg
ha-1 ZnSO4 + 15 kg ha-1 MnSO4 was
applied.
