Article ID : 2020/AJRRA/253 :Effect of Humic Acid and Powders of Some Plants Producing Allelopathic Compounds on Soil Properties and Productivity of Faba Bean 

Atef Fathy Ahmed1, Adel Ahmed Fakkarand Abd Elaal Mohamed Abd-El-kareem2*

1Soils, Water and Environmental Research Institute, Agricultural Research Center, Giza, Egypt.

2Weed Research Central Laboratory, Agricultural Research Center, Giza, Egypt.

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