Naslov
The impact of different land uses on the available soil phosphorus budget in Croatia

Autori
Lončarić, Zdenko ; Hefer, Hrvoje ; Andrišić, Milena ; Rašić, Daniel ; Zegnal, Ivana ; Rastija, Domagoj ; Sanja, Jelić Milković ; Lončarić, Ružica

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Economic and Social Development. 95th International Scientific Conference on Economic and Social Development - "Era of Global Crises". Book of Proceedings / Bogavac, Milija ; Miladinović - Bogavac, Živanka ; Marčinko Trkulja, Željka - Varaždin : VADEA, 2023, 358-368

Skup
Economic and Social Development. 95th International Scientific Conference on Economic and Social Development - "Era of Global Crises"

Mjesto i datum
Beograd, Srbija, 18.05.2023. - 19.05.2023

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
soil degradation, available phosphorus, crop production, permanent plantations, organic fertilization

Sažetak
Soil degradation in Croatia is a worrisome phenomenon on agricultural land, and in addition to the reduction in SOM content, there is also a significant potential reduction in the content of plant available phosphorus. Therefore, 1, 000 composite soil samples on a depth of 0-30 cm in eastern Croatia were collected initally in 2005 or 2006, and then again from the same locations after 15 years. In total, 2, 000 samples from 1, 000 different production plots were collected and this paper presents an analysis of changes in available phosphorus budget on arable land and permanent plantations. The average of available phosphorus on 4, 858.3 ha of arable land and 477.4 ha of orchards and vineyard was 18.55 mg/100 g and 15 years later it was slightly increased to 19.88 mg/100 g. But, these averages hide the existence of negative trends and the degradation of significant areas by reducing the availability of phosphorus, especially on arable land. There are very significant differences among arable lands and permanent plantations considering changes in available phosphorus budget during 15 years. A significant unjustified and unacceptable phosphorus decreasing was on 37.8% of analyzed arable lands which were already poor or just medium supplied with plant available phosphorus. On the other hand, on 35.7% of arable land phosphorus increasing was determined. The situation is significantly better on permanent plantation, since only on 17.2% of analyzed area unjustified and unacceptable decreasing of phosphorus budget happened, but on 60.3 % phosphorus budget was increased. Considering the changes in the content of phosphorus, potassium and SOM on arable land and permanent plantations of different initial levels of fertility, we can conclude the following: 1) fertilization is not carried out in accordance with soil fertility and nutrient needs, nor on almost 40% of orchards and vineyards, nor on more than half of arable land ; 2) very significant degradation of the soil due to phosphorus impoverishment was determined on almost 38% of arable land and 17% of permanent plantations ; 3) the degradation of SOM content is the most intense, followed by phosphorus, and the degradation of available potassium is the least ; 4) it is certain that organic fertilizers and soil fertility conservation measures are rarely and/or ineffectively used on arable land ; 5) the management of available soil nutrients and SOM was much more successful on permanent plantations than on arable land, we assume in large part due to the more efficient use of organic fertilizers.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

POVEZANOST RADA