Volume 4 (2003) Number 2

During the past decade many countries of Eastern and Central Europe have experienced crucial and often shocking changes in their economies. By now the economies of the region have started on a path of rapid economic progress. However, agriculture's share of the total economy has steadily declined in most of the countries. A strange contradiction may be seen in the fact that agricultural research is thriving, in spite of all the financial hardships and technical barriers. The management of natural resources in a productive, but also sustainable way is becoming a major focus throughout the world, which requires better information on the present state of these resources, and on the production processes utilizing - and often depleting - them. Agriculture heavily relies on natural resources, such as farmland, the genetic potential of crop varieties and animal breeds, water and climatic conditions. Inefficient and wasteful use of these resources will have an impact not only on the agricultural sector but also on the overall global environment. For this very reason the evidence of creativity, originality and hard work, being manifested in the abundance of research results described in papers by researchers of the region is a cause of reassurance, or even optimism. The present issue of JCEA contains 15 papers from 6 countries in 4 languages. This issue presents the research: water regime of the some field crops in Transylvania, water consumption of the main field crops in Transylvania, the some important properties and classification of mollisols in northwestern Turkey, the material flow on agricultural farms, phenotypic correlations between productivity elements of red clover, comparative study of the aminoacid’s true digestibility of different clover varieties in experiments with ganders,effects of excess cu on growth and photosynthesis of barley plants, the structural problems in hungarian agriculture after the political turnover, the assessment of Rhynocoris marginatus as augmented control in groundnut pests, the influence of stationary magnetic field on the early stages of the development of tobacco seeds (Nicotiana tabacum L.), the actual stage the knowledge about the damages bruchides, chemical control of bean weevil in storage condition, control of the coleopteres in stored agricultural products by not-chemical methods, a study on Meligethes species in Keszthely, the importance of the standard sample for accurate estimation of the concentration of net energy for lactation in feeds on the basis of gas produced during the incubation of samples with rumen liquor, evaluation of meat production of czech pied bulls in fattening control stations with reference to relative breeding values of milk and meat production of sires, economic efficiency of various queen bees maintenance systems, using corn distiller’s grain and rice bran in the nutrition of laying hens and its economic impact, study on a high performance integrated beekeeping technology, economic evaluation of a breeding programmed for setting up two high performance bee lines, using full fat soybean in broiler diets and its effect on the production and economic efficiency of fattening. These papers help to advance the state-of-the art for exciting fields of research and also raise challenging questions for future research. The Editors

CONTENTS: The importance of the standard sample for accurate estimation of the concentration of net energy for lactation in feeds on the basis of gas produced during the incubation of samples with rumen liquor Pomen standardnega vzorca za točno oceno vsebnosti neto energije za laktacijo v krmi na podlagi plina, ki se razvije med inkubacijo vzorcev z vampnim sokom ŽNIDARŠIČ T., VERBIČ J., BABNIK D. IZVLEČEK ABSTRACT FULL TEXT (.pdf) Language: Slovenian 77 - 88 Water regime of the some field crops in Transylvania (1964-2002) Regimul de apă al unor culturi de câmp în Transilvania ZOLTAN N., LUCA E.*, BERCHEZ M. REZUMAT ABSTRACT FULL TEXT (.pdf) Language: English 89 - 96 Water consumption of the main field crops in Transylvania (1964 – 2002) LUCA E.*, ZOLTAN N., BERCHEZ M. REZUMAT ABSTRACT FULL TEXT (.pdf) Language: English 97 - 102 Assessment of Rhynocoris marginatus (Fabricius) (Hemiptera: Reduviidae) as augmented control in groundnut pests SAHAYARAJ K.*, MARTIN P. ABSTRACT FULL TEXT (.pdf) Language: English 103 - 110 Evaluation of meat production of czech pied bulls in fattening control stations with reference to relative breeding values of milk and meat production of sires Vyhodnocení masné užitkovosti býků českého strakatého skotu ve stanicích kontroly výkrmnosti s ohledem na relativní plemenné hodnoty mléčné a masné užitkovosti otců KUČEROVÁ J.*, KECLÍK R., MARŠÁLEK M., FRELICH J. ABSTRAKT ABSTRACT FULL TEXT (.pdf) Language: Czech 111 - 120 The material flow on agricultural farms Materiálový tok v zemědělských podnicích VANĚČEK D., KALÁB D. ABSTRAKT ABSTRACT FULL TEXT (.pdf) Language: English 121 - 130 Influence of stationary magnetic field on the early stages of the development of tobacco seeds (Nicotiana tabacum L.) ВЛИЯНИЕ НА ПОСТОЯННО МАГНИТНО ПОЛЕ ВЪРХУ РАННИТЕ ЕТАПИ ОТ РАЗВИТИЕТО НА СЕМЕНА ОТ ТЮТЮН ( Nicotiana tabacum L.) ALADJADJIYAN A., YLIEVA T. РЕЗЮМЕ ABSTRACT FULL TEXT (.pdf) Language: English 131 - 138 Economic efficiency of various queen bees maintenance systems Eficienta economica a diferitelor sisteme de intretinere a maticilor POPESCU A.*, SICEANU A. REZUMAT ABSTRACT FULL TEXT (.pdf) Language: English 139 - 144 Using corn distiller’s grain and rice bran in the nutrition of laying hens and its economic impact Utilizarea borhotului uscat de porumb si a taritei de orez in alimentatia gainilor ouatoare si impactul sau economic POPESCU A.*, CIURASCU G. REZUMAT ABSTRACT FULL TEXT (.pdf) Language: English 145 - 152 Study on a high performance integrated beekeeping technology Studiu asupra unei tehnologii apicole integrate de inalta performanta POPESCU A.*, GURESOAIE I. REZUMAT ABSTRACT FULL TEXT (.pdf) Language: English 153 - 160 Economic evaluation of a breeding programme for setting up two high performance bee lines Evaluarea economica a unui program de ameliorare pentru crearea a doua linii de albine de inalta performanta POPESCU A.*, RADOI C. REZUMAT ABSTRACT FULL TEXT (.pdf) Language: English 161 - 166 Using full fat soybean in broiler diets and its effect on the production and economic efficiency of fattening Utilizarea full fat soya in nutreturile combinate pentru broileri si effectul acesteia asupra productiei si eficientei economice a ingasarii POPESCU A.*, CRISTE R. REZUMAT ABSTRACT FULL TEXT (.pdf) Language: English 167 - 174 Structural problems in hungarian agriculture after the political turnover Strukturális problémák a Magyar mezőgazdaságban a rendszerváltás után VIZVÁRI B., BACSI ZS. NACIONALNI ABSTRACT FULL TEXT (.pdf) Language: English 175 - 184 Phenotypic correlations between productivity elements of red clover (Trifolium pratense L.) Corelaţii fenotipice între elementele de productivitate la trifoiul roşu MUNTEAN L.*, SAVATTI M. REZUMAT ABSTRACT FULL TEXT (.pdf) Language: English 185 - 190 Comparative study of the aminoacid’s true digestibility of different clover (Trifolium) varieties in experiments with ganders PENKOV D., PAVLOV D., MIHOVSKY T. ABSTRACT FULL TEXT (.pdf) Language: English 191 - 198