The cultivation of the maize seed crop on the different soil types

Abstract

The trial was carried out to examine the influence of two different soil types (alluvium and marshy black soil) on the grain yield of two maize seed crops, during two diametrically opposite growing seasons under intensive irrigation. The same soil management was applied during both seasons. The sowing density of parental inbreds in the second season was increased in the first hybrid (H1) by 7% and decreased in the second hybrid (H2) by 25%. Generally, the achieved grain yield was significantly lower on marshy black soil in regard to cropping on alluvium. The change in the plant density of parental components was reflected on the grain yield of both hybrids, increasing it on alluvium, averagely by 25% and on marshy black soil by 27%. On the other hand, marshy black soil was characterized as poorer soil for H2 cropping, because a lower yield was achieved (by 4%), compared to H1, while the opposite situation was present on alluvium, where the grain yield higher by 13% was obtained in H2, compared to H1, indicating that H2 parental components should be cropped on light soils.

Cilj ogleda je bio da se ispita uticaj dva različita tipa zemljišta (aluvijuma i ritske crnice) na prinos dva hibrida semenskog kukuruza tokom dve dijametralno različite sezone, u uslovima intenzivnog navodnjavanja. Primena agrotehničkih mera tokom obe sezone je bila ista osim smanjenje gustine setve roditeljskih linija kod prvog hibrida (H1) za 7%, dok je kod drugog (H2) izvršeno povećenje setvene gustina roditeljskih linija za 25% u drugoj sezoni. Generalno, postignuti prinosi su bili značajno niži na ritskoj crnici, u odnosu na gajenje na aluvijumu. Promena u setvenoj gustini roditeljskih komponeneti se odrazila na povećanje prinosa kod oba hibrida na aluvijumu prosečno za 25%, dok je na ritskoj crnici došlo do povećanja za 27%. Sa druge strane, ritska crnica se pokazala kao loše zamljište za H2, jer su kod njega postignuti za oko 4% niži prinosi u odnosu na H1, dok je na aluvijumu situacija bila obrnuto proporcionalna, sa 13% višim prinosima kod H2, u odnosu na H1, što ukazuje da je roditeljske komponenete ovog hibrida potrebno gajiti na lakšim zemljištima.