The B horizons of terra rossa soils developed on three different carbonate lithologies having variable insoluble residue contents were studied in Western Herzegovina. Comparison of their composition and properties illustrates to what extent the mineral, (especially clay mineral assemblage) and particle size distribution of those horizons and the insoluble residue of the underlying carbonate rocks can be used as indicators of the polygenetic nature of terra rossa in this region. Terra rossa B horizons have characteristic red colours, neutral to slightly acid pH, high base saturation with calcium as the predominant cation and high CIA (Chemical Index of Alteration). The CIA values obtained are generally in accordance with mineral composition and particle size distribution of the analysed B horizons. The predominant clay mineral phases in B horizons and related insoluble residues match. Kaolinite is the predominant clay mineral phase in the B horizons overlying carbonate rocks containing low amounts of insoluble residue, while smectite predominates in calcarenites areas with a high insoluble residue content. However, the presence of plagioclase, gibbsite, chlorite-vermiculite mixed layer mineral and vermiculite in B horizons overlying carbonate rocks containing low amounts of insoluble residue support a polygenetic origin for the terra rossa. In contrast, terra rossa formed on calcarenites containing high amounts of insoluble residue might have formed almost exclusively from the parent carbonate rock although some infl uence of external materials (e.g. gibbsite) cannot be excluded. This investigation shows that in Western Herzegovina, an area with no important aeolian input, the content and mineral composition of carbonate rock insoluble residue plays a major role in terra rossa composition. We can tentatively conclude that the lower the insoluble residue content of the parent materials, the greater is the expectation of a more polygenetic origin for the terra rossa.

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The stationary field experiment on the application of different types and doses of liming was started in Kupres plateu (1.184 m.a.s.l.), Bosnia and Herzegovina in the summer 2017. The aim of this three-year research was to determine the effectiveness of liming materials on changes in soil chemical properties and yield of cultivated crops. The used treatments were; control, crude dolomite from Rama, crude dolomite from Kupres, and commercial burnt lime; each applied at lower and higher dosages of 7 and 15 t/ha, respectively. Application of lime materials resulted in desirable reduction in soil acidity, and changes in the soil chemical complex with an increase of exchangeable Ca 2+ after limestone application and increase of exchangeable Mg 2+ after dolomite application. Commercial burnt lime (BLP) proved to be most effective, followed by crude dolomite Rama (CDR), while crude dolomite Kupres (CDK) proved to be the least effective. All cultivated crops (silage corn > triticale > spring barley) responded positively to the applied lime materials. In terms of investment and yields achieved, silage corn proved to be the most economical.

UDK 631.164(497.6 Hercegovina) This paper presents the evaluation of benefits of the agricultural land for the cultivation of cherry, sour cherry, plum and apple in the area of Herzegovina-Neretva County (HNC). The evaluation of the land suitability was carried out according to the FAO method (FAO, 1976, Brinckman and Smith, 1973), according to the agro zone (up to 800 m above sea level) and taking into account the features of the soil, climate and topography and the requirements of these fruit cultures. The results of the research are shown with text and graphics (maps of benefits of the agricultural land). Based on the conducted research, the existence of significant and valuable land resources is established for development of fruit cultivation in Herzegovina-Neretva county. For the cherry and sour cherry cultivation in the agricultural area of Herzegovina- Neretva county (up to 800 m above sea level) exists 29,682 hectares (28.55%) of suitable land, for the plum and apple cultivation exist 38,345 hectares (36.89%). The convenience of the class structure of the soil for the cherry, sour cherry, plum and apple is the smallest share of the P-1 class benefits. The largest proportion of the land P-3 class benefits for growing cherries, sour cherries, apples and plums with benefits in the soil for growing cherries have less difference between the surfaces of the P-2 and P-3 class suitability. The main limitations are the slope of the terrain, the depth of profile, rockiness and stoniness. Temporarily unsuitable soils had occupied significant area for these fruit species cultivation. Plots of this class can be with adequate, economically justified measures led to a certain class of convenience

UDK 631.164:635.33(497.6) Purpose of this paper was to perform inventory of areas and features of agricultural land in the field of the Herzegovina-Neretva County based on existing data and to assess benefits of agricultural land for cultivation cabbage according to the characteristics of the soil, relief and climate. The evaluation of the land suitability was carried out in line with FAO method (FAO, 1976) according to the agro zone. Based on conducted research, it was established that the studied area is very suitable for the production of cabbage. There are 23,249.3 ha (11.68%) suitable land for the production of cabbage and temporarily unsuitable 5,201.2 ha (2.61%) while permanently unsuitable land for intensive production of cabbage are on 170,451.8 ha (85.7%). The main limitations for intensive production of cabbage in the studied area are the slope, the depth of profile and rockiness. According to official data on the state of the current production of cabbage in the studied area and data of suitable land and temporarily unsuitable land, the conclusion is that there are basic prerequisites in the form of land resources to expand the production of cabbage in this field.