Naslov
Spatial variability of penetration resistance on Pseudogley

Autori
Bogunović, Igor ; Mesić, Milan ; Birkas, Marta

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, ostalo

Izvornik
Sustainable soil management for food and environment safety / Poljak, Milan - Zagreb : Croatian Society of Soil Science, 2014, 58-58

ISBN
978-953-58241-0-7

Skup
XII Congress of the Croatian Society of Soil Science "Sustainable soil management for food and environment safety"

Mjesto i datum
Dubrovnik, Hrvatska, 22.09.2014. - 26.09.2014

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Mapping; soil variability; penetration resistance; cone index

Sažetak
Usually large numbers of measurements is required to describe spatial variability of soil resistance but GIS technology with interpolations methods make it possible to estimate data from unsampled locations. In this paper cone index (CI) measurements were made in two occasions in 2.88 ha field in central Croatia to present soil condition. A commonly used tillage operation consists of mouldboard ploughing (about 30 cm depth) and disc harrowing (12 - 15 cm) and they are practiced on annual basis. Measurements (240) were taken according sample grid in 48 different 24 x 25 m2 fields. At each sampling date, cone index (CI) data were interpolated using geostatistical techniques (kriging) to produce the maps of soil resistance. These maps combined with expert knowledge can provide good direction for applying appropriate soil management. Our results demonstrate that the investigated layers had variable spatial structures in terms of their linear trends. This suggests that each layer has a unique spatial structure possibly as consequence of pedogentic processes, tillage operations and changes influenced by drainage and leveling operations. The results presented here describe spatial variability of soil resistance of a drained Pseudogley of Central Croatia, measured as CI in a field conditions. Tillage practices caused the formation of a plow pan at a depth 30 – 40 cm where the maximum CI values were obtained. According to the values of penetration resistance the tillage practices should be changed if we consider improved conditions for plant roots development.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

POVEZANOST RADA