Soil characteristics are affected by climate. Available potassium is one of the most important soil fertility indices. This study was conducted to determine the availability of potassium using Quantity- Intensity (Q/I) relationships in Vertisols of Isfahan and Chaharmahal-Va-Bakhtiari provinces with aridic and xeric moisture regimes, respectively. Soil mineralogy showed that smectite was the do...

the present study sought to investigate the impact of using mind-mapping technique instruction on female elementary efl learners reading comprehension; it also investigated their attitudes towards using mind-mapping technique as a tool to improve their reading comprehension. this study followed a quasi-experimental design with two intact groups as experimental, and control groups. the participa...

Organic manures can affect phosphorus (P) sorption characteristics (PSC) and its availability in soils. Information about effect of sewage sludge (SL) on PSC in calcareous soils of Hamadan province is limited. The objective of this research was to study the effect of SL on PSC and available P in 10 calcareous soils. The soil samples were incubated with and without 1.5 % SL for 5 months at field...

testing plays a vital role in any language teaching program. it allows teachers and stakeholders, including program administrators, parents, admissions officers and prospective employers to be assured that the learners are progressing according to an accepted standard (douglas, 2010). the problems currently facing language testers have both practical and theoretical implications but the first i...

Organic manures can affect phosphorus (P) sorption characteristics (PSC) and its availability in soils. Information about effect of sewage sludge (SL) on PSC in calcareous soils of Hamadan province is limited. The objective of this research was to study the effect of SL on PSC and available P in 10 calcareous soils. The soil samples were incubated with and without 1.5 % SL for 5 months at field...

Excessive application of sewage sludge leads to the accumulation of potentially toxic elements in soils. The objective of this greenhouse study was to examine the DTPA–extractability of Fe, Zn, Cu, Mn, Pb, Cd, Ni, and Co in relation to soil pH and to investigate the concentrations of these metals in corn (Zea mayz). The study was conducted using a factorial experiment in a completely randomized...

one very decisive factor in students’ academic destiny is the result they get at final term examinations. because of its importance, both students and teachers are curiously anxious about them. as normally it is the case, these final term tests are prepared hurriedly in short time by teachers which result in students’ dissatisfaction, complaining on how the test was different from their expecta...