The effects of different NPK nutrient doses on red pepper's yield and vegetative parts in pots

Red pepper (variety 'Hírős') was cultivated in plant pot, in the research garden of Kecskemét College Faculty of Horticulture. Plant pots were in semi-subsurface position full with sandy soil typical for the Danube-Tisza sand ridges. Our aim was to investigate changes in productivity, yield and NPK content of leaves in correlation with increased NPK doses on sandy soil with low humus content and average nutrient supply. We used Hydrofert NPK 15-30-15 fertilizer. The amount of nitrogen and potassium per hectare were 150 300, 450, 600 kg, and the amount of phosphorus was the double of these. Fertilizer was spread with irrigation into the soil of plant pots. Total doses were applied in three equal portions, between May and July in all treatments for better nutrient utilization. Harvest was during the biological ripeness of red pepper, between August and September Compared to the control samples, yield increased spectacularly in every treatment. At the same time, utilising the highest amount of fertilizer did not decrease the yield compared to smaller amounts. It means we can reach balanced increase of yield with high amount of NPK fertilizer on sandy soil. High salt concentration in the root zone did not hinder the development of the plants

Effects of arsenic contamination in sprinkling water on the arsenic content of lettuce in hydroculture

Horticulture, and mainly vegetable growing, is one of the most important sectors of agriculture in Hungary. The production area of indoor and outdoor vegetable growing exceeds 60 000 ha per year. About 80 percent of this area is located in the southeast region of the country. The average precipitation of this area is 380-450 mm per year, therefore intensive vegetable growing can't avoid irrigation. However, sprinkling water is relatively available in this territory. Underground water for irrigation between 30 and 200 m is obtainable in good quality and quantity for all agricultural production. In some cases higher salt content and iron level appear in underground waters, and beyond these, higher arsenic concentration can be observed probably from geological origin. Main arsenic ion form is arsenate, which was concentrated in living water residues in Pleistocene and Holocene. In these waters arsenic concentration is 20 to 200 pg/L. In Faculty of Horticulture, Kecskemét College, we started our investigations in order to study the arsenic uptake and accumulating properties of different vegetables, grown under the influence of arsenic polluted sprinkling water. Our methods were indoor and outdoor growing, rainfall and trickle irrigation, soil and hydroculture manner as well. This paper summarizes our results on hydroculture lettuce grown with 0-25-50-75-100-200 pg/L (natural As dose) and 400-600-800 pg/L (provoked As dose) arsenic polluted sprinkling water

Results analysis of irrigation water located mainly in county Bács-Kiskun

Ground water samples, collected mainly in Kecskemét and its outskirts, were analysed in the laboratory of Faculty of Horticulture (Kecskemét College). Depending on the depth three categories of the sprinkling water samples were formed: 10-30, 31-70 and 71-275 m, respectively. Chemical analysis of 103 water samples showed the decrease in the salt content with deepness (conductivity (EC) decreased from 1116 to 682 pS.cm' 1 in the deepest groundwater samples). It was the result of the decrease primarily in sodium, hydro-carbonate and chloride contents in the samples. Acidity and alkalinity of the samples didn't change with deepness considerably in our samples. The levels of nitrogenous and phosphorous ions were low in almost all water samples. Ferrous, manganese and arsenic content was the highest in the middle deep water region (31-70 m depth). These results may reveal problems in the application of these water sources in agriculture, mainly in growing and irrigation because of high salt concentration, principally thanks to hydro carbonate and metallic ions. Acidic pre-treatment of these irrigation waters seems to be crucial

Investigation of ground and artesian waters as irrigation water on the Great Hungarian Plain

One of the most significant attribute of soils is that they function as water reservoirs. Subsurface waters — used as irrigation water — can contribute to nutrient supply, but their pollution has a negative impact on the conditions of cultivation. In our study we present the results of our investigation of ground and artesian water samples from the Great Hungarian Plain, mostly from Kecskemét and its surroundings. Based on the depth of the sampling points, we divided the samples into three categories: between 10-30, 31-70 and 71-275 meters. The results showed that the salt content is decreasing with the deepness, primarily because of the decrease in sodium, hydro-carbonate and chloride contents in the samples. The level of nitrogen and phosphorous-ions were low in almost all water samples. Iron, manganese and arsenic content were the highest in the middle deep waters (31-70 m depth). These results — especially in the case of iron and arsenic — can cause problems in the use of these waters in agriculture for cultivation and irrigation. Nowadays decreasing groundwater stocks decrease the water sources of irrigation. Nevertheless usage of subsurface waters for irrigation is important in the future, for example about their function as a potential nutrient sources. Their sensitivity against pollutions draw attention to the essential task of continuous quality parameters monitoring of subsurface waters

Examination of the Zinc Content of the Southern Great Plain Areas in terms of Nutrient Supply

Among microelements, low level of zinc seems to be the most common property in Hungarian soils. Horticultural cultivation requires a balanced supply of nutrients. Southern part of the Great plain contributes significantly to the supply of the fruit and vegetable to the population, so it is important to follow the soil properties, including measurement of those elements which have special effects on plant growing and human health. In our present investigation we continued the analysis of soils, via determination of the average level and distribution of available zinc content and followed the occurrence of the low and high zinc levels in the surrounding soils. Based on our results we suggest supplementing zinc microelement in plant growing in our region, to get healthy functional products and foods

Investigation of the Effects of Foliar Fertilizers on Industrial Tomatoes

Our field experiment was made in 2019 in the study garden of the Faculty of Horticulture and Rural Development. The soil of the experiment was slightly calcareous and alkaline sand with a medium humus content. Three different foliar fertilizer treatments were applied on industrial tomato test plant. Ripening accelerating compounds increased tomato yield. Potassium chloride and Sweet treatments increased yield as well. Water soluble dry matter content was also increased slightly after KCI and Ethrel treatments

Effects of soil types and nitrogen fertilizer doses on some chemical characteristics of tomato, sweet corn and pepper

Our research project was aimed at the description of the nitrogen and carbon flows in soils and vegetable cultures. As a part of this project we made our experiments in the nursery garden of our Institute (Kecskemét College, Faculty of Horticulture), using irrigated and fertilized lysimeters. Three different soil types (sandy, alluvial and chernozem soils) were studied. At constant phosphorus and potassium fertilizer doses (P6o:K]2o), four different nitrogen doses (0, 60, 120 and 180 kg.ha-1 N) were used. Total N levels and other parameters were determined in two harvesting times in tomato (type K-549) and sweet corn (variety 'Spirit') as well. According to other parameters of the tested vegetables, organic acid contents increased in tomato berry on sandy and alluvial soils at higher nitrogen fertilizer doses. Sugar content was higher in tomato grown on alluvial and chernozem soils. Nitrogen doses decreased sugar contents in chernozem in the case of both vegetables. The increase in vitamin C levels of tomato in sandy soil was slight due to higher nitrogen doses. The highest sugar content in sweet corn was measured due to farmyard manure treatment. According to green and red pepper test plants, the effect of nitrogen fertilizer (ammonium-nitrate) and barnyard manure on crop mass seemed to be highly positive in our experiments

The impact of potassium fertilization on development and magnesium content of celery

Our experiments were carried out in 2017, in our study garden. Celery test plant was used, in lysimeter-type, large-sized breeding pots, in four series. Four different treatments of potassium fertilizer and manure was used. The results show that potassium fertilization in celery test plants increased potassium in a dose-dependent manner. Potassium fertilizer decreased magnesium nutrient content in the leaves and roots. Our results call attention for magnesium supplementation in parallel with potassium fertilization. Positive effect of potassium on tuber growing was also shown. Total plant weight was the highest after the organic manure treatment

Results analysis of irrigation water located mainly in county Bács-Kiskun

Ground water samples, collected mainly in Kecskemét and its outskirts, were analysed in the laboratory of Faculty of Horticulture (Kecskemét College). Depending on the depth three categories of the sprinkling water samples were formed: 10-30, 31-70 and 71-275 m, respectively. Chemical analysis of 103 water samples showed the decrease in the salt content with deepness (conductivity (EC) decreased from 1116 to 682 pS.cm' 1 in the deepest groundwater samples). It was the result of the decrease primarily in sodium, hydro-carbonate and chloride contents in the samples. Acidity and alkalinity of the samples didn't change with deepness considerably in our samples. The levels of nitrogenous and phosphorous ions were low in almost all water samples. Ferrous, manganese and arsenic content was the highest in the middle deep water region (31-70 m depth). These results may reveal problems in the application of these water sources in agriculture, mainly in growing and irrigation because of high salt concentration, principally thanks to hydro carbonate and metallic ions. Acidic pre-treatment of these irrigation waters seems to be crucial

The impact of different foliar fertilizers on the guantity and nutrient content of industrial tomato

Our field experiment was made in 2018 in the study garden of the Faculty of Horticulture and Rural Development. The soil of the experiment was slightly calcareous and alkaline sand with a medium humus content. Three different foliar fertilizer treatments were applied on industrial tomato test plant. Ripening accelerating compounds increased tomato yield. Potassium chloride treatment increased yield as well. Water soluble dry matter content was also increased slightly after KCI treatment