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• The impact of fertilisation on a few microbiological parameters of the carbon cycle

  45-50

  Bence Mátyás

  Magdolna Tállai

  János Kátai

  Judit Horváth

  Views:

  177

  The 30 years old long-term experiment of Látókép is continued in our experiments. The long-term fertilization experiment was set in 1983, and our sample was taken in spring 2014. The examinations of soil respiration processes and factors that influence soil respiration are required in optimal management. In our study, we interested to know how the growing levels of fertilization influence the microbial processes under nonirrigated and irrigated conditions in maize mono, bi, and triculture. The experimental results and those statistics suggest that the bi and triculture influenced higher microbial activity which was reflected in number of fungus, soil respiration, and microbial biomass carbon (MBC).

• Industrial Utilization of Grasses

  131-134

  Zsolt Janowszky

  Views:

  80

  The Agricultural Research and Development Institute P.U.C., Szarvas – realizing the importance of using the biomass in a number of ways – was one of the first in Europe, who began the breeding of grasses suitable for industrial utilization. The possible areas of using the energygrass – which could be called industrial grass – are the following:
  – Energetical use
  – Paper industry use
  – Utilization as an industrial fibrematerial
  – Use for feeding
  The aim of the breeding programme: developing the kinds of grass, which yields big drymaterial mass and suitable for industrial utilization. These kind of grass, taking soil-utilization, economicality and environmental protection, offer and ensure new marketing perspectives and employment facilities for the disadvantageous areas.

• Experience at Russian State Agrarian University – Moscow Timiryazev Agricultural Academy on introduction and integration of precision agriculture technology

  73-76

  Sofya V. Zhelezova

  Egor V. Berezovsky

  Alexey I. Belenkov

  Views:

  114

  Traditional and precision agriculture technologies are compared on the basis of the field experiment. Problems of soil and crop survey and mapping are discussed.

• Effect of different weaning time on the growth and survival ofCommon carp (Cyprinus carpio L.) larvae

  55-59

  Dániel Minya

  László Kovács

  Dávid Homoki

  Milán Fehér

  Péter Bársony

  László Stündl

  Views:

  347

  Within our experiment, we studied the combined effect of live food application and feed training on the production parameters of carp larvae. In addition, we examined whether there is a difference in the growth rate and survival rate of the specimens of Szeged mirror landrace reared in similar stocking density but with different treatments.

  Specimens of Szeged mirror landrace from induced propagation were placed into 12 pieces of 40-liter aquaria. For the 4 different treatments, (K, A3, A6, A9), live food (Artemia salina) was fed, as well as feed training was applied.

  We also sought to find an answer as to how our feeding and rearing conditions can affect the production parameters of common carp fries and what impact these conditions may have on their survival rates. At the end of the 2-week experiment we determined the individual weight gain of the carp fries, their survival rate and the biomass growth. The purpose of the study is to examine the optimum timing of shifting from live food to feed for carp larvae.

• Findings on the cultivation of potatoes in organic farming

  113-116

  Petr Dvořák

  Jaroslav Tomášek

  Views:

  98

  This paper explores the effectiveness of organic and plastic mulching for potato production in the Czech Republic. The mulching with chopped grass (GM) and black textile mulch (BTM) were compared to non-mulching control variant (C) with mechanical cultivation. Especially in plots with BTM were first formed ridges and covered by the black polypropylene non-woven textile and then they were planting. During vegetation the infestation of Colorado potato beetle (CPB), weeds biomass, course of soil temperature and soil water potential were assessed. The results showed that surface of GM had a positive effect on soil temperature reduction, soil water potential depression. This study also indicated a positive effect of GM on the larvae of CPB diminution, on the other hand higher incidence of larvae and higher defoliation was observed in BTM. GM had a significant effect on the yield of potatoes. The yield of ware potatoes was higher by 27 % higher on plots with GM and by 16 % lower on plots wit BTM in comparison with C. NeemAzal T/S decreased statistically significantly % of defoliation and increased yield of ware potatoes by 35 % in comparison with control.

• Leaf protein analyses in order to utilise the leaf shoot of artichoke

  43-47

  László Kaszás

  Miklós Fári

  Sándor Hodossi

  Éva Domokos-Szabolcsy

  Views:

  152

  The constat growth of the Earth’s population brings with itself a higher demand for food and protein not only in human nutrition but also for the feeding of livestock. Currently, the feed industry is mainly built onseed-based protein, wherethebaseplant is soybean, which is large lycovered by imports in Hungary, similar toother European countries. However, the long-term economically sustainable lifestock breeding demandschanges which has also worked out strategies. An alternative protein sources could be green leafy plants.

  In current work the Jerusalem artichokes as an alternative source of protein was studied, compared to alfalfa as a valuable protein plant. Our results indicate that fiber fraction ofJerusalem artichoke shootswas 34 to 37% after pressing in the autumn period while alfalfa slightly lower values were obtained (30%). On the other hand extracted green leaf protein concentration was higher in alfalfa than in Jerusalem artichoke. Along with this higher protein content could be measured from the leaf protein concentration of alfalfa and almost each amino acids were more, as well comparing to Jerusalem artichoke.

  Overall, the alfalfa proved to be advantageous as expected both in leaf protein extraction efficiency, both regarding the content of the protein in the Jerusalem artichoke. However, considering aminoacid composition and green biomass production, Jerusalem artichokecould be a promisingplant species asplant protein sourceinthefuture.

• Significance of biogas production in Hungary

  127-129

  Károly Kith

  Views:

  138

  It is known that the quantity of fossil energy sources are rapidly reducing, therefore it is necessary to determine a new direction which has to point directly to renewable energy sources. Increasingly comes into view the agriculture’s energy producing nature next to it’s traditional food producing one. The enviromental protection is connected to the energy production by the ultilization of biomass for energy purposes, within the biogas production has an emphasized importance. Quasi every organic material can be used in biogas production, such as: food processing by-products, manure, sewage sludge, hoousehold waste.