Sowing Season-Year Important Link in Maize Cultivation Technology

  • Alina ȘIMON Agricultural Research and Development Station Turda, 27 Agriculturii St., 401100, Turda, Romania
  • Ana-Maria VĂLEAN Agricultural Research and Development Station Turda, 27 Agriculturii St., 401100, Turda, Romania
  • Ioana CRIȘAN Agricultural Research and Development Station Turda, 27 Agriculturii St., 401100, Turda, Romania
  • Laura ȘOPTEREAN Agricultural Research and Development Station Turda, 27 Agriculturii St., 401100, Turda, Romania
  • Andrei VARGA Agricultural Research and Development Station Turda, 27 Agriculturii St., 401100, Turda, Romania
  • Alin POPA Agricultural Research and Development Station Turda, 27 Agriculturii St., 401100, Turda, Romania
  • Adrian CECLAN Agricultural Research and Development Station Turda, 27 Agriculturii St., 401100, Turda, Romania
  • Adrian NEGREA Agricultural Research and Development Station Turda, 27 Agriculturii St., 401100, Turda, Romania
Keywords: sowing season, maize hybrids, climatic conditions, yield.

Abstract

Climate change, through continuous rising temperatures and variability in rainfall, is a challenge for
agriculture. Adapting some agricultural practices and technologies to the new environmental
conditions can be one of the effective methods to reduce the effects of climate change. In this context,
during 2020-2022 at Agricultural Research and Development Station Turda an experience with 7
maize hybrids was placed (Turda 248; Turda 165; Turda 201; Turda Star; Turda 332; Turda 344; Turda
335), which were sown in 3 different sowing dates (at 6ºC, 8ºC and 10ºC in the soil), following the effect
of the time of sowing on the development of the maize crop but also the impact of the environmental
conditions on the yield. During the research period, the number of days from sowing to emergence, the
emergence of the panicle, respectively the physiological maturity, was higher in the case of the first
sowing date. The sum of useful thermal degrees (SUTG) (Σº≥10ºC) was inversely proportional to the
number of days for each physiological stage. The yield obtained by the 7 hybrids used was higher for
the hybrids from the FAO 380 maturity group. The greatest increases in yield were recorded in the
third age, but some hybrids performed better in the second sowing season. In the specific conditions
of the Transylvanian Plateau, sowing maize earlier, even if it manages to avoid the negative impact of
stress factors during the growing season, does not contribute to increasing of yield.

 

Published
2023-11-28