Yeşilhisar suni merasında kentsel arıtma çamuru ve inorganik gübre uygulanmış toprakların organik madde, agregat dayanımı ve agregat büyüklük dağılımının incelenmesi
Tez Türü: Yüksek Lisans
Tezin Yürütüldüğü Kurum: Ankara Üniversitesi, Ziraat Fakültesi, Toprak Bilimi Ve Bitki Besleme, Türkiye
Tez Danışmanı: Prof. Dr. Günay Erpul
Tezin Onay Tarihi: 2014
Özet:
The present thesis was conducted to investigate the effects of
different sewage sludge and chemical fertilizer doses on the organic matter,
aggregate stability and aggregate size distribution of highly-alkaline pasture
soils of Yeşilhisar. Separate doses of sewage sludge applied individually in
each year (AÇ1: 1.69 t ha-1; AÇ2: 3.37 t ha-1; AÇ3: 5.06 t ha-1; AÇ4: 6.68 t
ha-1; AÇ5: 8.43 t ha-1), a cumulative dose for three years at once during soil
cultivation (AÇ111: 5.06 t ha-1; AÇ222: 10.12 t ha-1; AÇ333: 15.17 t ha-1; AÇ444:
20.03 t ha-1; AÇ555: 25.29 t ha-1) and different doses of chemical fertilizer
(N1P1: 0.05 t ha-1; N2P2: 0.10 t ha-1; N3P3: 0.15 t ha-1; N4P4: 0.20 t ha-1;
N5P5: 0.25 t ha-1) constituted the treatments of the study. Aggregate size
distributions of soil samples were measured and mean weight diameter values
were calculated by using these aggregate size distributions values. Then, for
each of the mean weight diameter value, corresponding organic matter content of
sediments were determined. The research results showed that entire treatments
had significant effects on natural aggregate distribution soils (p<0.01). It
is also observed that the organic matter content of the soils differ
significantly based on the aggregate size. The lowest aggregate stability was
measured as 0.26 in Kontrol0 soil, while highest aggregate stability was
measured as 0.60 with AÇ111 treatment.