Lupova E.I.

Features of the use of desiccation at different sowing periods of spring wheat in the technology of obtaining oilseeds

The article offers studies to identify the effectiveness of chemical preparations for desiccation in spring wheat crops. The research was conducted in 2017-2020 in the conditions of the Ryazan region. It was revealed that in the phase of the yellow-green pod, the organs of the surepitsa plants were characterized by different humidity. The stems (up to 75%), the leaves of the pods (about 55%) and the seeds (40%) had the maximum humidity. On average, according to the experience, a high increase in seeds was observed on the variant with sowing in the first decade of May, Dikoshans, BP, 3 l/ha – 20.0 c/ha (+11.7% to the control or +2.1 c/ha). The average maximum yield in the second sowing period was noted on the Glyphoshans, BP, 3 l/ha variant-18.4 c / ha (+1.5 c/ha or +8.8% to the control) and on the Dikoshans, BP, 3 l/ha variant-18.3 c/ha (+1.4 c / ha or + 8.2% to the control), which proves the high efficiency of using the desiccation method in the production technology of spring surepitsa oilseeds.

Keywords:SPRING SUREPITSA, SEED MOISTURE, DESICCATION, YIELD, OIL CONTENT