Effect of Sowing Time and Rate on Growth, Development and Productivity of Crotalaria Juncae. L

¹ Cotton Breeding, Seed Production, and Agrotechnologies Research Institute, Tashkent, Uzbekistan
² Urgench State University, Urgench, Uzbekistan
³ Kuban State Agrarian University named after I.T. Trubilin, Krasnodar, Russia
⁴ Ural State Agrarian University, Yekaterinburg, Russia

^* Corresponding author: snegmatova1973@gmail.com

Abstract

In this article, the influence of the non-traditional legume Crotalaria (Crotalaria juncae L.) as the main crop on its growth, development and productivity in conditions of degraded meadow alluvial soils of Khorezm region is described. That is, the highest indicators of seed germination were observed on May 1-5 of crotalaria in the version where 18 kg/ha of germinating seeds were planted, and increasing the sowing rates in all planting periods increased seed germination by 3-5%; as of July, when crotalaria was planted on April 20-25, the plant height was 10-14 cm higher than the options planted in other periods; in the case of September, when the plant was planted at 14 kg/ha on April 20-25, the number of leaves formed was 265.0, which was 85.0 more than when planted early and 15 more than when planted late, and the number of leaves when 14 kg/ha of seed was planted was 10 85.0 units per kg/ha compared to the variant planted with seeds, 111 units compared to the variant planted with 18 kg/ha; the higher seed yield of crotalaria in 20-25.04 when 14 kg/ha of seed is planted is 18.0 t/ha, compared to the option planted in the early period, 5.9 t/ha; 3.7 ts/ha compared to the option planted in the late period; 2.4 ts/ha compared to the option with 10 kg/ha of seeds; Compared to option 6, where 18 kg/ha of seeds were planted, 4.8 ts/ha of additional grain yield was scientifically justified. Key words: Crotalaria juncae, grassland alluvial soil, legume, duration, rate, fertility, seed, hay, productivity.