A. S. Tsygutkin, I. V. Logvinov
1Williams Federal Scientific Center of Fodder Production and Agroecology, Nauchnyi gorodok, k. 1, Lobnya, Moskovskaya obl., 141055, Russian Federation
2Belgorod Federal Agrarian Scientific Center of the RAS, ul. Oktyabr’skaya, 58, Belgorod, 308001, Russian Federation
Abstract. The research aimed to study the impact of mineral and organic fertilizers on the yield of peas against the background of various methods of basic tillage in grain-row crop rotation using the regression method of analysis. The work was carried out in a long-term multivariate field experiment on typical chernozem using half and quadratic models, which showed a close relationship between actual and calculated values. On average, during the fifth circle of crop rotation, the pea yield without fertilizers was 15.6 q/ha. The introduction of single doses of mineral fertilizers increased it by 24.5%, double – by 51.0%. The aftereffect of fertilizer manure applied at doses of 40 and 80 t/ha increased the collection of pea seeds, compared to the variant without fertilizers, by 12.3 and 25.8%, respectively. With the combined use of mineral and organic fertilizers, the growth of the pea yield reached 84.5%. The maximum harvest of pea seeds was observed in 2015 in the variant with double doses of mineral and organic fertilizers with minimal tillage – 33.5 c/ha, and on average over 5 years it was 28.8 c/ha. There were no significant differences in yield depending on the tillage method. Differences between the values of the correlation coefficients when using the two most common models (half and quadratic) were not established. In four cases, the correlation coefficient was higher for the half-model, in seven cases for the quadratic model, in one case they were the same.
Keywords: pea; tillage; mineral fertilizers; organic fertilizers; harvest; regression analysis.
Author Details: A. S. Tsygutkin, Cand. Sc. (Biol.), advisor (e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.); I. V. Logvinov, junior research fellow.
For citation: Tsygutkin AS, Logvinov IV [Using regression analysis to study the effect of fertilizers and basic tillage on pea yield] Dostizheniya nauki i tekhniki APK. 2022;36(5):61-6. Russian. doi: 10.53859/02352451_2022_36_5_61.