This paper analyzes the influence of foliar fertilizer based on humus extract on some of the elements central to the quality of the Polka raspberry variety in the area of the city of Bihać. The research was conducted in 2015 according to the control and treatment system. A foliar fertilizer based on humus extract was used for the treatment. A total of 12 quantitative and qualitative properties were analyzed: content of total sugars, reducing sugars, invert sugars, sucrose, water content, dry matter, total acidity, vitamin C, total phenols, total flavonoids, antioxidant capacity, and fruit mass. After the analyses were completed, it can be concluded that fruits of raspberry plants treated with humus extract have an almost identical value of total acidity (1.65%) as found in control. However, treatment with a humus extract slightly lowered the content of total phenols and vitamin C. Based on the results obtained, it was shown that the foliar fertilizer based on the humus extract did not have a positive effect on certain chemical and antioxidant properties of the raspberry fruit.
Rational use of available land is of great importance for the economic development of every society, especially considering the fact that soil is the primary production resource, thereby placing an even greater importance on its protection and conservation, but also on the correct use of it. This paper focuses on the municipality of Bužim, located in the north/western part of Bosnia and Herzegovina, where the soil suitability for the purposes of corn cultivation were assessed and examined by using the FAO (1976) methodology of AEZ (agroecological zoning), which uses input data such as soil characteristics, climate change, relief patterns of the investigated area, and the requirements of the agricultural crops. Within the municipality of Bužim, 13,026.27 ha of the land is used for agricultural purposes. In regards with the corn, one distinguishes between two categories ofsoil suitability: the suitable classes (S1, S2, S3), which occupy more than 43.44% of the land surface, and the unsuitable class (the N class), which only occupies 0.94% of the land surface. Thus, it can be concluded that conditions necessary for corn do exist within the municipality of Bužim, in the form of land resources, and higher yields can be achieved by implementing landscaping measures and introducing new corn varieties in accordance with the latest scientific and expert achievements.
The aim of this paper is to analyse the influence of foliar application of a biostimulative fertilizer on some of the elements of raspberry fruit quality of the Polka variety. The research was conducted in 2015, according to the system of controls and treatment. Slavol VVL, a foliar fertilizer with biostimulating effects was applied for treatment. A total of 12 quantitative and qualitative properties were analyzed depending on the influencing factor, namely: total sugar content, reducing sugars, invert sugars, sucrose, water content, dry matter, total acidity, vitamin C, total phenols, total flavonoids and antioxidant capacity, and fruit weight. After the completed analyzes, it can be concluded that raspberry plants treated with Slavol VVL were characterized by the highest values of total acidity (2.07%), dry matter (14.86%), and vitamin C content (25.15 mg/100 g of fresh weight).
The consequences of improper land management are long-term, inadequate for agricultural production, and reflected through the loss of land, reduced yields, soil erosion, etc. In order to determine the optimal role or suitability of the land for apple cultivation within the Bužim municipality, a survey was conducted according to the FAO method of AEZ (FAO, 1976), and based on the obtained results, an assessment of the suitability of the land for apple cultivation was carried out. It was found that a significant land portion of the total of 13,026.27 ha agricultural land within the Municipality of Bužim is suitable for fruit production marked from S1 to N suitability class. Thus, the areas with the best graded class S1 cover only 1.23% or 159.52 ha, the S2 class occupies 5.51% (717.24 ha), the S3 class occupies 2.29% (298.24 ha). However, the largest areas are marked as the unfavourable N-class with 36.68% (4,772.60 ha). It is evident that pre-existing conditions for apple production within the municipality do exist. With the implementation of the necessary measures of soil/ land regulation, education of agricultural producers, and mindfulness of constraint factors hindering intensive production such as terrain slope, depth, rockiness and soil response, progress in production can be made. Key words: municipality of Bužim, soil suitability, apple, AEZ.
Rational use of available land is of great importance for the economic development of every society, especially when considering the fact, that the soil is a primary production resource, thereby placing an even greater importance on its protection and conservation, but also on the correct use of it. This paper focuses on the municipality of Bužim, located in the north-western part of Bosnia and Herzegovina, where we assessed and examined the soil suitability for the purposes of potato cultivation by using the FAO methodology of AEZ (agro-ecological zoning), which uses input data such as soil characteristics, climate changes, relief patterns of the investigated area, and the requirements of the agricultural crops. Within the municipality of Bužim, 13,026.27 ha of land is used for agricultural purposes. In regards to the potato cultivation, one distinguishes between two categories of soil suitability: the suitable classes (S1, S2, S3) which occupy more than 45% of the land surface, and the unsuitable class (the N class) which only occupies 1.43% of the land surface. Thus, it can be concluded that conditions necessary for potato production do exist within the municipality of Bužim in the form of land resources, and higher yields can be achieved by implementing landscaping measures and introducing new potato varieties in accordance with the latest scientific and expert achievements.
Amateurish and unprofessional handling of agricultural resources has lasting und unprecedented consequences for plant production, manifesting itself through the loss of soil quality, reduced crop yields, soil erosion, etc. The main focus of this research was to establish the characteristics of the agricultural soil within the municipality of Bužim, applying the FAO method AEZ (Agro-ecological Zoning), (FAO, 1978), and based on the achieved results, to assess the soil suitability for plum (Prunus domestica) cultivation. The assessment of the soil suitability has led to the conclusion that a significant part of land (classified S1 to N in quality), out of the total 13.026,27 ha of agricultural area belonging to the municipality of Bužim is well suited for fruit production. The following has been observed: areas with the best rated S1 class make up a total of 1.23% (159.52 ha), the S2 class takes up a total of 5.51% (717.24 ha), the S3 suitable class makes up a 2.29 % (298.24 ha) in total, and the largest area totaling 36.68 % (4.772.60 ha) is classified as N - meaning unsuitable soil. The main restraints imposed on intensive plum cultivation within the examined area are lack of nourishment, tilt, depth, rock-strewn soil and soil reaction.
One of the primary soil functions is the production of food and raw materials, but the soil is used for ther purposes as well, outside the sphere of agricultural production, e.g.road construction and housing, exploitation of mineral resources. The research in this paper, appropriate agricultural land capability classification, was carried out in the Bužim Municipality using the guideline of unique methodology regarding the classification of agricultural land in the rating categories and criteria for individual soil properties, based on which land capability classes are determined. As a result of the research, six agricultural land capability classes (LCC) and land capability subclasses (LCS), ranging from III to VII, were determined, and areas were also marked as forest and built land. The most common land areas were marked under the VI LCC with the total area of 18.99% of the territory of the municipality. The V LCC was represented with a percentage of 11.65, while the IVa LCS was only represented with 1.02%.
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