One of the most important issues affecting environmental health and sustainable food production is application of organic fertilizers instead of chemical fertilizers. This study set out to investigate the effect of application of soil humic acid and fulvic acid on barley plant. To this end a factorial experiment was carried out on the basis of randomized complete block design with four replicat...

review and goals: the ajowan(carum copticum) is a medicinal plants from apiaceae family that seeds contains 2-4% of volatile oil. 9-17 of chemical composition of ajowan essential oil have been reported(2), it have antibacterial and antioxidant activity of it caused to preserve the food materials(1). the application of chemical fertilizer leads to environmental pollution and ecological disaster ...

The quality of soil organic matter plays a central role in structure, carbon sequestration and pollutant immobilization. effect 16–23 years fertilization on the was studied field experiments at ten experimental sites Central Europe. Soil samples were collected 2016 after barley harvest. Six crops rotated: pea–canola–winter wheat–spring barley–beet/potato–spring barley. treatments studied: unfer...

SSSAJ: Volume 75: Number 5 • September–October 2011 Trade or manufacturers’ names mentioned here are for information only and do not constitute endorsement, recommendation, or exclusion by the USDA-ARS. Soil Sci. Soc. Am. J. 75:1712–1722 Posted online 4 Aug. 2011 doi:10.2136/sssaj2010.0355 Received 16 Sept. 2010. *Corresponding author ([email protected]). © Soil Science Society of America...

Humic acids are the most active components of soil organic matter and have been shown to have an hormone-like activity thus stimulating plant growth. The objective of this work was to verify the quantitative and qualitative yield responses of the table grape cv. Italia after the application of a humic acid at various phenological stages. The humic acid used in this study has been extracted from...

SSSAJ: Volume 74: Number 1 • January–February 2010 Soil Sci. Soc. Am. J. 74:74–86 Published online 16 Nov. 2009 doi:10.2136/sssaj2009.0212 Received 5 June 2009. *Corresponding author (([email protected]). © Soil Science Society of America, 677 S. Segoe Rd., Madison WI 53711 USA All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, ele...

In recent years, excessive use of chemical fertilizers and lack of organic fertilizers caused to reduce the rate of soil organic matter in Iran. The increased use of chemical fertilizers in agriculture causes environmental problems such as soil physical degradation and soil nutrient imbalances. This study was conducted to investigate the effects of foliar and soil applications of humic acid on ...