Influence of the sowing method and the predecessor on the yield of new chickpea varieties

Abstract

The article presents the data of field experience on the study of the influence of the method of sowing and the predecessor on the yield of new chickpea varieties selected of the Federal State Budgetary Scientific Institution RosNIISK “Rossorgo”. As a result of the conducted analysis of variance, the share of the total variability of factor A – 12.95%, factor B – 65.59%, factor C – 3.92%, interaction of A*B – 9.14%, A*C – 0.83%, B*C – 4.35%, A*B*C – 2.17%, the remainder (unaccounted factors) – 1.05% was revealed. The ranking of varieties by seed yield was presented in the following order: Benefit > Bonus > Sphere > Galileo > Ball > Falcon; different row spacing options: 45 cm > 60 cm > 70 cm > 30 cm > 15 cm; different predecessor options: spring wheat > spring barley > corn > grain sorghum. According to experience, a high seed yield was obtained when cultivating the Benefit variety, placed with a row spacing of 45 cm according to the predecessor spring wheat. The yield of gross energy in the crop per a. s. v. was in the range from 15.75 to 70.58 GJ/ha; the yield of grain per 1 GJ of energy consumption was from 0.06 to 0.26 tons. The highest values in the experiment were noted in the large-seeded variety Benefit, low values - in the small-seeded variety Sokol. Under the conditions under consideration, the best indicators of bioenergetic efficiency of seed production were characterized by the following varieties: large-seeded Benefit (with row spacing of 45 cm and 60 cm for the predecessors spring wheat, grain sorghum and corn) and Bonus (with row spacing of 45 cm for the predecessor spring wheat); medium-seeded Sphere (with row spacing of 45 cm for the predecessor spring wheat), due to the combination of high yield and grain quality.