SOIL Studies

SOIL Studies

2014, Vol 3, Num, 1     (Pages: 031-043)

Assessment with Geostatistical Method for Effects of Different Soil Tillage Systems on Clay Soil`s Some Physical Properties

Mustafa SAĞLAM 1 ,Orhan DENGİZ 1 ,K. Çağatay SELVİ 2 ,E. Fatma GÜRSOY 1 ,Çağla ATASOY 3

1 Ondokuz Mayıs Üniversitesi, Ziraat Fakültesi, Toprak Bilimi ve Bitki Besleme Bölümü, Samsun
2 Ondokuz Mayıs Üniversitesi, Ziraat Fakültesi, Tarım Makinaları Bölümü, Samsun
3 Ankara Üniversitesi, Ziraat Fakültesi, Toprak Bilimi ve Bitki Besleme Bölümü, Ankara

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The main aim of this research is to investigate effects of different soil tillage applications on soil physical properties related to soil aeration and water conductivity in soils having heavy soil texture using geostatistical method. Experiment was conducted on 11 m x 50 m sized plots located in Black Sea Agricultural Research Institute-Samsun between 2011 and 2012 years. It was found significant as statistically effects of all soil tillage applications on total porosity, micropore, bulk density and organic matter content for first year. It was showed that total porosity and micropore content of soils increased with applications of soil tillage whereas, bulk density and organic matter content decreased with the same applications. As for in second years, it was found statistically significant only for micro and macropore contents of soils under these applications. On the other hand, effects on micropore content of soils were showed inversely by taking into consideration of time. Variability of soil tillage effects for second years on it were explained with increasing amount of precipitation in 2012. It was determined that soils have not suitable macrospores for plant growth and for drainage under soil tillage applications in for both years. In addition, it was found the similarity between Duncan multiple comparison results and Kriging maps. Therefore, geostatistic methods can be used successfully for mapping of variations of soil properties depending at some soil management applications.

Keywords : Bulk density, clay soil, total porosity, soil tillage, geostatistics