2. MATERIALS AND METHODS
2.1 Area Description and Soil Sampling
Field experiment was carried out at the research
area of Rice Research and Training Center,
Sakha, Kafr El-Sheikh, Egypt (31° 6 ′ 42″ N,
30° 56 ′ 45″ E). Represented soil samples were
taken in bulk from 0-25 cm depth before the
growing season. The samples were air-dried,
ground and passed through 2-mm sieve.
Composite samples were taken and analyzed for
physical and chemical characteristics namely,
EC, pH, texture, cations and anions following
standard methods [27]. The characterization of
the soil used is presented in Table 1.