For areas experiencing landslide processes, it is useful to quantify the risk of slope failure. To calculate, it is necessary to know the probability of collapse, although deterministic methods for calculating stability are traditionally used. The goal of our work is to develop a method for probabilistic assessment of slope stability based on the Monte-Carlo method. The main result of the work is to identify patterns of distribution of stability coefficients. 

The design of guide rod for inspection and cleaning with the help of DC-100 device of collectors entering the drainage well is presented. It describes its design and methods of work with it when performing inspection and cleaning of collector network. 

An analysis of the used made in China waterproof designs for fastening irrigation canals is given. The lining are presented with prefabricated reinforced concrete slabs laid on a layer of composite membrane, and fastenings made of concrete poured into molding bags made of two-layer polymer fabric. A fastening design has been proposed in the form of lattice and cellular slabs laid on a waterproof film, with the lattice and cells filled with coarse-grained material, the diameter of which is determined according to the formulas we have developed. 

The article analyzes the structural solutions and main functional elements of horizontal drainage that ensure the efficient operation of drainage systems at reconstruction sites, especially with low-permeability mineral soils and the presence of drainless depressions. The high filtration properties of synthetic filter materials, which make it possible to significantly increase the waterreceiving capacity of drainage pipes and replace with them the filling of drains with sand and gravel mixture, sand, etc have been considered. A set of measures is recommended using drainage devices that are at the stage of patent solutions, including new elements of the drainage network made of polymer materials that serve to remove excess water from closed depressions. Measures are proposed that increase the intensity of water drainage from excessively waterlogged lands, which provide conditions for highly productive agricultural production. 

On anthropogenically transformed peat soils, the maximum yield of winter triticale grain (54.7 c/ha) was obtained by introducing Adobe profit into the tillering phase and entering the tube, and the composition Ecogum Mn + Ecogum Cu + Microstim B into the earing phase. The increase was 41.7%. The same yield (59.7 c/ ha) was obtained when applying Ecosil + Ecohum FC + Ecohum Complex (the Time of the Resumption of Spring Vegetation and outlet into the tube) + Ecosil + Ecohum Complex (earing). Winter rye when introduced into the tillering phase of Ecosil+Adobe profit + Ecogum Mn + Ecogum Cu + Microstim B generated a yield of 51.4 c/ha. The increase in yield was obtained by increasing the length of the ear by 5.7%. The introduction of Ecosil + Adobe profit + Ecogum Mn + Ecogum Cu + Microstim B into the tillering phase and exit into the tube and Ecosil + Ecogum Mn + Ecogum Cu + Microstim B into the earing phase ensured a grain yield of 53.4 c/ha. 

The results of the assessment of the hydrothermal regime of the growing seasons are presented, the dependence of the elements of the crop structure on this indicator is revealed. The positive effect of micronutrients and bioregulators of growth on the seed productivity of annual ryegrass has been proved, the most promising drugs have been identified.