The effect of the tractor passes on the soil bulk density in silty clay soil
By: Aday, Shakir Hantush; al-Dusari, Shams Haytham; Hasan, Abd al-Jabbar Julub. Basrah Journal of Agrricultural Science. Vol. 24, no. 1 (2011), pp.11-27, 17 p.
Subjects: Agriculture; Farming systems; Soil moisture