Search

Search Results

• 60th Anniversary of Hungarian Plant Protection Service

  8-10

  Ottó Pálmai

  Views:

  126

  The author briefly overview the history of the 60-year-old Hungarian Plant Protection Service, which has improved to a model by its ’golden age’ period with a well organized system and excellence of specialists on the chemistry period of Hungarian agriculture. The profound changes both in policy and economy resulted a serious structural changes which continue even nowadays. Meanwhile country borders have been opened than EU membership of Hungary have generated new challenges by appearance and spread of new pests.

• The effect of water-stress on the mineral nutrition of fruit plantations

  187-192

  Péter Tamás Nagy

  Anita Szabó

  Emese Berta Szabó

  Attila Illés

  Ida Kincses

  Views:

  103

  Besides agro-techniques the climatic conditions play an important role in agricultural production. Weather extremes are
  significant hazards to many horticultural regions all over the word. It has a profound influence on the growth, development and yields of a
  crop, incidence of pests and diseases, water needs and fertilizer requirements in terms of differences in nutrient mobilization due to water
  stresses. Nowadays, the weather extremes cause more and more problems and significant hazards to many horticultural regions in Hungary.
  The aim of this study is to explore the problems of nutrient uptake followed from climatic anomalies and response it. In this study
  we focus on water supply problems (water-stress).
  Reviewing the effects and nutrient disorders caused by climatic anomalies, the following statements can be taken:
  · Nutrient demand of trees can be supplied only under even worse conditions.
  · The most effective weapon against damage of climatic anomalies is preventative action.
  · Proper choice of cultivars, species and cultivation should provide further possibilities to avoid and moderate the effects of
  climatic anomalies.
  · Fruit growing technologies especially nutrition should be corrected and adjusted to the climatic events as modifier factors.
  · The role of foliar spraying, mulching and fertigation/irrigation is increasing continuously.
  · Urgent task of the near future is to correct and adjust the tested technologies of fruit growing according to these climatic events as
  modifier factors.
  Optimal nutrient supply of trees decreases the sensitivity for unexpected climatic events. To solve these problems supplementary, foliar
  fertilization is recommended, which adjusted to phonological phases of trees. Moreover, mulching is regarded as an excellent water saving
  method.

• An unimportant insect pest with characteristic symptoms: Halticus apterus (Miridae)

  19-23

  András Bozsik

  Views:

  181

  Halticus apterus, a tiny mirid bug with jumping hind legs has not been taught in agricultural entomology courses in Hungary. However, the most detailed agricultural entomology text book, the “Handbook of Agricultural Entomology” briefly presents the pest. Although, it is common in Hungary, its damage is insignificant because of the low density; it can cause quality loss in feed crops only. Nevertheless, its special symptom – spottedness – is worth taking into consideration. The author has been studying pests and natural enemies of alfalfa for a long time (at least ten years), so he focused attention on this species. Occurrence of H. apterus was only sporadic in the alfalfa field, but it showed characteristic and frequent symptoms at a density of averagely three individuals per alfalfa plants in mixed plant associations at the studied field edge. By presenting the damage appearance and form, it was possible to make a more accurate description of H. apterus’symptoms, and with evaluating relevant European references, also the detailed entomological characterisation, economic importance and assessment of future risks have been achieved. As a difference to former descriptions, the special leaf spottedness of H. apterus does not consist of homogenous round spots but rather of spherical conglomerations of tiny whitish dots caused by the piercing and sucking mouthparts and the injected saliva

• Possibilities of selection and production of blue and ornamental corn (Zea mays L.)

  15-19

  Zoltán Bódi

  Pál Pepó

  Views:

  102

  The cultivation of alternative crops has an important role in world agriculture. Their market share is continuously growing in the food industry sector. In the present study, we show the cultivation and breeding perspectives of ornamental and blue corn. There exists possibility to cultivate ornamental corn in Hungary. There are many cultivars of ornamental corn, with various kernel colors, husks, stalks and leave colors. Blue corn is unique among other corns. Blue corn higher in protein, iron and zinc than commercial dent corn. Pests affective ornamental and blue corn are the same as those of other commercial corns. Ornamental and blue corns need to be grown a minimum of 500 m away from commercial yellow dent corn to minimize any cross pollination which may result in off-color kernel. Our aim in the presentation of this review was to broaden Hungarian literature.