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• W1020903805 abstract "Gazdasagi előnyokkel jaro hatekony hibridspecifikus termesztesi technologiat dolgoztunk ki. Korai vetessel - az optimalis vetesidőhoz viszonyitva - 4-5 %-kal, a megkesett vetesidőhoz viszonyitva 6-10 %-kal is tudtuk csokkenteni a betakaritaskori szemnedvesseg tartalmat. A kukoricahibridek agrookologiai műtragyaoptimuma elővetemenytől, evjarattol es a hibrid termőkepessegetől fuggően N 40-120, P2O5 25-75. K2O 30-90 kg/ha hatoanyag. A hosszabb tenyeszidejű hibridek (FAO 400-500) agrookologiai műtragyaoptimuma a korai tenyeszidejű hibridekhez viszonyitva kedvező evjaratban N 30-40 kg/ha-ral nagyobb volt. A hektaronkenti 10 ezer tőszamvaltozas a termest 1,5-2,0 tonnaval kepes novelni vagy az optimum felett csokkenteni. Az optimalis tőszam mellett a tőszamoptimum intervallumot is meghataroztuk, amit a hibridek meg termescsokkenes nelkul elviselnek. A tőszam befolyasolja a kukoricahibridek hektoliter tomeg alakulasat is. Altalaban a 60, 75 ezer tő/ha-nal a legkedvezőbb, de a hibridek kozotti kulonbseg sokkal magasabb es allandobb. A tőszamnovelessel a szem kemenyitőtartalma nő, a feherje- es az olajtartalma csokken. Az optimalisnal nagyobb N adag szignifikansan csokkenti a talaj pH erteket, noveli a NO3-N mennyiseget. A hibridspecifikus technologia a talajtermekenysegre gyakorolt hatasa mellett elősegiti a klimatikus-, edafikus tenyezők, a biologiai alapok, valamint az agrotechnikai tenyezők kozotti pozitiv interakciok ervenyesuleset. | We have worked out an effective hybrid specific technology of plant production of economic benefit. By early sowing we could decrease the seed moisture content at harvest by 4-5%, compared to the optimal and by 6-10% compared to the latest sowing time. The agro-ecological optimum amount of fertilizers for maize hybrids is N40-120, P2O5 25-75, K2O 30-90 kg/ha active agent depending on fore crop, season effect and productivity of hybrids. The agro-ecological optimum amount of fertilizers for maize hybrids with longer vegetation period (FAO 400-500) was greater by N 30-40 kg/ha in the favourable seasons than for early maturating hybrids. A 10 000 plants/ha change in stock density can increase yields by 1,5-2 t/ha, but over the optimum level, yields are reduced. We determined not only the optimal plant density but the interval of optimal density, which can be tolerated without yield reduction by hybrids. Plant density has an effect on hectolitre weight of maize hybrids. Usually, it is the most favourable in the case of 60, 75 000 plants/ha, but the differences between hybrids are higher and more stable. Starch content rises, while protein and oil content drops in grain as a result of an increasing plant density. The higher than optimum N dose has decreased significantly the pH value of soil and increased NO3-N quantity. Hybrid specific technologies-besides having an impact on soil productivity-assist the predominance of the interaction between climatic, edaphic and biological factors." @default.
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• W1020903805 date "2007-01-01" @default.
• W1020903805 modified "2023-10-16" @default.
• W1020903805 title "A talaj termékenységét megőrző fajtaspecifikus kukoricatermesztési technológiák fejlesztése tartamkísérletben = Development of hybrid-specific maize technologies for the protecting of soil fertility in long-term experiment" @default.
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