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Abstract: |
A field experiment was carried
out in the Experimental Station of the Department of
Horticulture and Landscaping, College of Agriculture, Diyala
University in the spring season 2016to study the effect of
three types of soil coverings (without coverage, black
polyethylene coverage and white polyethylene coverage) and
spraying with plant extracts (Imperata cylindrical,
Cyperusrotundus, Allium cepa and Sorghum halepense) on the
vegetative growth of the tomato plant. The individual and
combine effect all these used materials was observed on
plant length, stem diameter, number of leaves, leaf area,
dry weight of the plant, production kg/ha-1, acidity of
fruits and TSS. The experiment was applied according to
split-plot in the Randomized Complete Block Design (RCBD)
with three replicates. In results, the soil mulching showed
a positive effect on all studied vegetative growth
properties of tomato crop particularly black color covering.
The spraying of the plant extracts separately resulted in a
significant and significant reduction in all studied
vegetative growth properties. The spray treatment with
cyperus extract was characterized by increasing the
reduction rate in the measured vegetative growth
measurements. |
