Technological Sequences for Weed Control in Grain Sorghum Crops

Gheorghe Măturaru, Mihaela Cergan, Elena Partal, Marius Bordei

 National Agricultural Research and Development Institute Fundulea

Keywords: technological sequences, weed control, herbicide treatments.

Abstract: Sorghum (Sorghum) is a genus of plants in the Poaceae family. In Romania, average grain sorghum yields ranged between 1.5-5.6 t/ha, being successfully cultivated in the West and Northwest, in the South and Southeast, in southern Moldova and in some areas of Transylvania. Sorghum has high temperature requirements, with the minimum germination temperature being 10-12 degrees celsius, and temperatures favorable for growth being above 20 degrees celsius. As precursor plants, weeding crops are preferred, which leave the land clean, and after sorghum, it is recommended to establish crops only in the spring of the following year.
In the pedoclimatic conditions specific to the area at NARDI Fundulea, the sorghum crop presents a high infestation (88%), a spectrum of characteristic weeds and a dominance specific to the area. The presence of weeds in the crop is a reality, their predominance being influenced by the crop area, technological links, the preceding plant and local pedoclimatic conditions.
The research focused on technological sequences (classical technology, imazamox-resistant technology and nicosulfuron-resistant technology), crop selectivity and combating weed species by applying herbicide treatments without negative impact on the environment.