Mineral nitrogen in the soil and its effect on corn yield
Ljubinko Starčević
Faculty of Agriculture and Institute of Field and Vegetable Crops, Trg Dositeja Obradovića 8, 21000 Novi Sad, Serbia and MontenegroDragana Latković
Faculty of Agriculture and Institute of Field and Vegetable Crops, Trg Dositeja Obradovića 8, 21000 Novi Sad, Serbia and MontenegroBranko Marinković
Faculty of Agriculture and Institute of Field and Vegetable Crops, Trg Dositeja Obradovića 8, 21000 Novi Sad, Serbia and MontenegroAbstrakt
Experiments were conducted in a long-term stationary field experiment estab-lished at the experimental field of the Institute of Field and Vegetable Crops in Novi Sad in 1965. A part of the trial included corn monoculture, another part a two-crop rotation of corn and spring barley. This paper presents the results obtained in the period 1992-1995. The content of mineral nitrogen was found to depend on fertilization variant. The highest content of mineral nitrogen was found in the variants DVS+NPK and S+NPK, the lowest in the control variant. The distribution of mineral nitrogen along the soil profile varied among the test years and it depended on the amount of rainfall in the period preceding the growing season. The lowest grain yield was in the control variant. The effect of the applied mineral and organic fertilizers ranged in the monoculture from 132 to 156 %. In the variants NPK and MC-S-NPK, the highest yields were achieved with 120 kg N ha-1; in the variants MC-M-NPK and DC-M-NPK, the highest yields were achieved with 60 kg N ha-1. The mutual relationship between grain yield and the content of mineral nitrogen was high and it fitted the quadratic regression, while the correlation coefficients were high.
Słowa kluczowe:
corn, monoculture, crop rotation, N-min, yieldBibliografia
Marinković B.1989. Prinos kukuruza u zavisnosti od sadržaja mineralnog azota u zemljištu. Agrohemija 1/3, 9-21.
Scharpf, H. C., Wehrmann, J. 1975. Die Bedeutung des Mineralstickstoffvorrates des Bodens zu Vegetationsbeginn für die Bemessung der N-Düngung zu Winterweizen. Landw. Forsch. Sonderheft - Kongressband. 32, 100-114.
Starčević L., Marinković B. 1988. Prinos kukuruza i neke agrohemijske osobine zemljišta u zavisnosti od dugogodišnje upotrebe organskih i mineralnih đubriva. Referat na Jugoslovenskom naučnom simpozijumu "Savremeni sistem kontrole plodnosti zemljišta i upotrebe đubriva u funkciji optimalnih prinosa danas i sutra", Novi Sad 7-10.06.
Starčević L., Marinković B., Latković D. 1994: Uticaj organskih i mineralnih đubriva u monokulturi kukuruza na prinos, kvalitet zrna i sadržaj NO3 u zemljištu. Savremena Poljoprivreda 42, 4, 37-40.
Starčević L., Latković D. 1997. Aktuelna problematika u tehnologiji gajenja kukuruza. Poljo-privredne Aktuelnosti, ½ , 5-23.
Starčević L., Latković D., Crnobarac J., Marinković B. 2002. A permanent trial with organic and mineral fertilizers in monoculture and two-crop rotation as a basis of sustainable maize pro-duction. Arch. Acker-Pfl. Boden. 48, 557-563.
Faculty of Agriculture and Institute of Field and Vegetable Crops, Trg Dositeja Obradovića 8, 21000 Novi Sad, Serbia and Montenegro
Faculty of Agriculture and Institute of Field and Vegetable Crops, Trg Dositeja Obradovića 8, 21000 Novi Sad, Serbia and Montenegro
Faculty of Agriculture and Institute of Field and Vegetable Crops, Trg Dositeja Obradovića 8, 21000 Novi Sad, Serbia and Montenegro
Licencja
Artykuły są udostępniane na zasadach CC BY 4.0 (do 2020 r. na zasadach CC BY-NC-ND 4.0)..
Przysłanie artykułu do redakcji oznacza, że nie był on opublikowany wcześniej i nie jest rozpatrywany do publikacji gdzie indziej.
Autor podpisuje oświadczenie o oryginalności dzieła, wkładzie poszczególnych osób i źródle finansowania.
Samoarchiwizacja
Czasopismo Agronomy Science przyjęło politykę samoarchiwizacji nazwaną przez bazę Sherpa Romeo drogą niebieską. Od 2021 r. autorzy mogą samoarchiwizować postprinty artykułów oraz wersje wydawnicze (zgodnie z licencją CC BY). Artykuły z lat wcześniejszych (udostępniane na licencji CC BY-NC-ND 4.0) mogą być samoarchiwizowane tylko w wersji wydawniczej.
