2021,    № 1 (43)    

GENERAL AGRICULTURE, PLANT GROWING




Lupova E.I., Vinogradov D.V., Sokolov A.A., Gogmachadze G.D., Lukyanova O.V., Stupin A.S.

Application of fertilizer doses in agrocenoses of spring rape

The article discusses research on improving the elements of the technology of cultivation of spring rape in the Ryazan region. The experiments were carried out on the territory of the experimental agrotechnological station of the Federal State Budgetary Educational Institution of Higher Education of the Russian State Aviation Technical University, Ryazan Region, on dark gray forest heavy loamy soils. In the experiment, with an agroecological test against the background of the action of the levels of mineral nutrition, on average, a higher yield according to the experience was recorded on the variants with the action of high doses of nitrogen fertilizers N90-180, and the complex action of the elements N180P120K60. On average, the maximum yield was recorded on variants with Cebra KL hybrids - N180 (28.2 c/ha), N180P120K60 (27.3 c/ha). In the experiment, with registration tests of the agrochemical NPS 11-37-5 in different doses on spring rape, it was found that the use of different doses of fertilizer led to an extension of the interfacial period of flowering - seed formation up to 4-5 days in comparison with the control, with a long duration of this period was observed with increasing fertilizer dosage. The use of NPS 11-37-5 fertilizer contributed to an increase in comparison with control of plant height by 0.4-18.9%, leaf area by 2.5-29.4%, the number of pods per plant by 3.2-29, 1%, respectively, with an increase in the fertilizer dose. On average, the highest yield of spring rape was observed in the variant with the use of an increased dose of the preparation von NPK + NPS 11-37-5, 350.0 kg / ha (21.7 c/ha).

Keywords:SPRING RAPE, GRAY FOREST SOIL, FERTILIZERS, DOSES, YIELD, OIL