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- W2688996917 abstract "A novenytermesztesi ter, ezen belul a csernozjom talaj vizhaztartasi folyamatainak sokoldalu vizsgalata, elemzese, a folyamatok parametrizalasa kulonosen fontos. A vizsgalatokat — az 1983-ban Ruzsanyi Laszlo altal beallitott, 2004-től Pepo Peter altal vezetett — polifaktorialis tartamkiserletben kukoricaval vegeztuk, melyet nemcsak jelentős vetesterulete, hanem a vizellatas, a novenytermesztesi ter vizhaztartasa szempontjabol kifejezett szenzibilitasa, erzekenysege is indokol. A kiserletet kulonboző vetesvaltasi rendszerekben (mono-, bi- es trikultura), harom elterő csapadekellatottsagu [egy aszalyos (2007), egy csapadekos (2008) es egy szaraz (2009)] evjaratban vegeztuk. A kiserletben N120+PK tapanyagszinttel, ket ontozesi kezelessel (O1-kezeles: nem ontozott, O3-kezeles: ontozott), valamint 60 000 tő·ha−1 allomanysűrűseggel dolgoztunk.A mertekado talajreteget harom szintre osztottuk, (0–60; 61–120 es 121–200 cm), melyekben vizsgaltuk a talajnedvesseg tenyeszidőbeli alakulasat. Az eredmenyek alapjan a felső (0–60 cm) talajszint nedvessegkeszlet-valtozasa volt a legintenzivebb, mind a csapadek, mind az ontozes kozvetlen hatasa itt mutathato ki a legegyertelműbben.Vizsgalataink alapjan megallapitottuk, hogy a csernozjom talaj vizkeszletet a vetesvaltas nagymertekben befolyasolja. A harom vetesvaltas kozul a monokulturas vetesvaltasban szamitottuk a legkisebb talajnedvesseg terfogatszazalekos ertekeket, bi- es trikulturaban mar az indulo vizkeszlet is 3–4 tf%-kal nagyobb ertekeket mutatott, es ez a tendencia a teljes tenyeszidőszakban megmaradt, mind a nem ontozott, mind az ontozott kezelesekben. A vizsgalati eredmenyek alapjan megallapithato, hogy a csernozjom talaj vizhaztartasa, a kukoricaallomany vizellatasa szempontjabol a monokulturas termesztes fugg a legnagyobb mertekben a vizellatottsagi viszonyoktol.A kiserleti adatokbol megallapithato, hogy az ontozes főkent a 0–60 cm-es gyokerzonaban fejtette ki hatasat, megkozelitőleg vizkapacitasig feltoltotte a talaj felső reteget, ezaltal kedvező viz- es tapanyagellatasi korulmenyeket teremtve a novenyallomany szamara. | The present study was carried out on maize in the poly-factorial long-term field experiment set up by L. Ruzsanyi in 1983 and directed by P. Pepo since 2004, as this crop not only has the largest sowing area in the region, but also exhibits great sensitivity to the water supplies and water regime in the crop production area. The experiment was carried out in various crop rotation systems (mono-, bi- and triculture), in years with diverse rainfall supplies: droughty (2007), wet (2008) and dry (2009). The nutrient level in the experiment was N120+PK, combined with two irrigation treatments (O1: non-irrigated, O3: irrigated), while the crop was sown at a plant density of 60,000 plants·ha−1.The relevant soil layer was divided into three levels (0–60, 61–120 and 121–200 cm), in which changes in the soil moisture content were examined during the vegetation period. Changes in the water reserves in the top (0–60 cm) soil layer were found to be the most intensive: the direct effect of both precipitation and irrigation could be detected most clearly in this layer.The results showed that the moisture content of the chernozem soil was greatly influenced by the crop rotation. Among the three crop rotation systems, the soil moisture volume % was lowest in the monoculture treatments, while even the initial water supplies were 3–4 V/V % higher in the bi- and triculture systems. This tendency was observed during the whole vegetation period in both the non-irrigated and irrigated treatments.The results indicated that the monoculture system depended to the greatest extent on the water supply conditions as regards both the moisture regime of the chernozem soil and the water supplies to maize.It could be seen from the data that irrigation had the greatest influence on the 0–60 cm root zone, replenishing the upper soil layer almost to field capacity, thus ensuring favourable water and nutrient supplies for the plant stand." @default.
- W2688996917 created "2017-06-30" @default.
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- W2688996917 date "2013-01-01" @default.
- W2688996917 modified "2023-09-23" @default.
- W2688996917 title "Csernozjom talaj vízháztartása eltérő vízellátottság mellett | Moisture regime of chernozem soil at different water supply levels" @default.
- W2688996917 hasPublicationYear "2013" @default.
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