- Selcuk Journal of Agriculture and Food Sciences
- Vol: 20 Issue: 39
- Determination of The Variability of Some Soil Properties on an Field Classified as Entisol
Determination of The Variability of Some Soil Properties on an Field Classified as Entisol
Authors : Fevzi Akbaş, Alper Durak
Pages : 43-52
View : 12 | Download : 11
Publication Date : 2006-08-25
Article Type : Research Article
Abstract :Soils have variations resulting from natural processes and management practices affected in different spatial and tem-poral scales. The aims of this study are to introduce the variability of some soil properties and exhibit the differences of soil mapping units (classified as Entisol) in an area having a detailed soil survey report. Soil samples were collected within an area of 400x800 m including four different soil mapping units. Soil samples, total of 512, were collected with a 25x25 m grid sam-pling design from 0-30 cm depth. Organic matter was the most variable and soil pH was the least variable soil properties based on coefficient of variation values. Exchangeable K was the only property exhibited normal distribution within whole study area. The number of soil properties with normal distribution was increased when the study area was divided into soil mapping units. The results of ANOVA and LSD test, showed that soil mapping units were significantly different from each other in clay content. In the study area 54 soil samples were required for organic matter and 1 soil sample was for soil pH to estimate average values in 10% error within true mean. All soil properties studied were considered together, 25 soil samples were required to represent the whole study area.Keywords : Toprak değişkenliği, varyasyon katsayısı, örnek sayısı, aluviyal toprak