A study of the productivity of alfalfa with melilot grass mixture and methods for developing their layer in the Caspian plain on irrigation

Abstract

The salt tolerance and salt tolerance of melilot has been thoroughly studied in Kazakhstan, and on this basis its high productivity has been universally established on salt licks, saline irrigated lands compared to other fodder plants. The results of experiments on a comparative study of the productivity of fodder crops on non-saline zonal soils also showed its high productivity. But at the same time, melilot is a culture that dramatically increases the productivity of the grass mixture when it is introduced into it. In the experiments we conducted 1998 and 1999., the high productivity of the joint sowing of mtlilot (Melilotus) was established, with alfalfa compared with the pure sowing of alfalfa (Medicago) - 113.0 c / ha of hay against 81.9 c / ha in total over two years. When cultivating melilot, attention should be paid to the following circumstances. It is well known that under irrigated conditions, the alfalfa layer is not amenable to processing due to its strong compaction and desiccation. A completely different picture is observed when cultivating a melilot for seeds, after which the soil, although it is dried up as much, but at the same time, due to the decomposition of the fallen leaves, the melilot layer is easily treated, because there is no strong soil compaction. From the studied methods of treating the melilot layer, the best result in the 2019 laying test was obtained by cultivating the soil to a depth of 10-12 cm, rolling before and after sowing alfalfa with melilot - here the grass mixture provided 89.1 c / ha of haylage, which is much higher than it productivity when harrowing (49.5 t / ha) and plowing to a depth of 20-22 cm. (69.3 t / ha).