Influence of methods and norms of sowing soybean seeds of the Northern ecotype on yield

Abstract

The article presents the results of studying the optimal norms and methods of sowing a new variety of soybeans of the northern ecotype of the Memory of Fadeev for 2016-2018 at the experimental site of the Chuvash Research Agricultural Institute-a branch of the Federal State Budgetary Institution “Federal Agricultural Research Center of the North-East named after N V Rudnitsky” in the southern part of the Volga-Vyatka region of Russia. It is established that in order to obtain high yields of soybean seeds of the northern ecotype in the conditions of the Chuvash Republic, the ultra-ripe variety of soy in Memory of Fadeev should be sown in a wide-row way at a rate of 600 thousand germinating seeds per 1 ha. It is revealed that to obtain a higher attachment of the lower bean, narrow-row sowing is recommended - the height of the attachment increases to 17.3 cm. Wide-row sowing increases the number of beans, the number and weight of seeds per plant, as well as the weight of 1000 seeds, which leads to an additional yield of up to 6.8 c/ha. According to the data obtained, an agroecological passport has been developed for a new Chuvash soybean variety of the northern ecotype of the Fadeev Memory variety, zoned in 2019.