engleski

Status of underground drainage in eastern Croatia and drained soils improvement by agromelioration

Croatia has about 2.3 million hectares of agricultural land, of which one third is state owned. About 167 thousand hectares of agricultural land in Croatia are covered by pipe drainage. Revitalization of pipe drainage and construction of new drainage systems are important potentials for improvement of agricultural production in Croatia. Intensification of drainage was carried out mainly from 1976 to 1990, mostly on agricultural land belonging to state owned farms. Eastern Croatia accounts for 30% of agricultural land at state level and pipe drainage is installed on 122, 390.5 ha or 73% of total drained area in Croatia and 17% of agricultural land of the region. More than 20% of agricultural land is drained in three counties of the region (Vukovar and Srijem, Brod and Posavina, Virovitica and Podravina Counties). In general, maize and wheat yields in Eastern Croatia are by about 30% higher compared to the state average. In this regard, we presume that pipe drainage has given a considerable positive contribution, particularly under wet year conditions. Current status of pipe drainage functionality is mainly inadequate and reconstruction and regular servicing are needed. In spite of soil r. eclamation and pipe drainage management, yields of main field crops mainly in the southern lowland part of the region were accompanied with inadequate supplies of phosphorus and potassium. These problems were eliminated by adequate agroamelioration, for example, ameliorative fertilization. Nutritional problems could be also alleviated by selection of more tolerant field crop genotypes

underground drainage system ; pipe drainage ; current status ; reconstruction

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