Journal of Food, Agriculture and Environment

Evaluation of humic substances and drip irrigation systems on Euryops pectinatus L. grown on sandy soil

Author(s):

Khalid Elhindi ^{1, 2}*, Abdul-Wasea Asrar ¹, Eslam Abdel-Salam ¹

Recieved Date: 2014-02-18, Accepted Date: 2014-04-20

Abstract:

Field studies were conducted to evaluate the effects of humic substances applications on Euryops pectinatus L. plant growth, plant chemical compounds, shoot nutrient uptake, soil physical properties and end-of-season soil nutrient retention under surface drip irrigation (SDI) and subsurface drip irrigation (SSDI) systems. The studies were carried out on sandy soil, and humic substances were applied with irrigation water at rates of 0, 30, 60 and 120 kg ha^-1. Results showed that increasing the humic substance application up to 120 kg ha^-1 (maximum rate tested) improved plant vegetative growth, flowering parameters, plant chemical compositions and shoot nutrient uptake. Humic substances application also improved soil physical properties (bulk density, porosity and water saturation) and soil fertility, which were reflected in greater end-of-season soil nutrient retention. Subsurface drip irrigation system was found to be more efficient than surface drip irrigation system.

Keywords:

Euryops pectinatus, humic substances, irrigation systems (surface and subsurface drip)

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Journal: Journal of Food, Agriculture and Environment
Year: 2014
Volume: 12
Issue: 2
Category: Environment
Pages: 1284-1290

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