The article presents the results of experiment to improve the management of water regime developed earlier (regulation of overgrowing of canal bed) to make the technology. Working versions and moving modes are developed, accounting method of control activities and management algorithm are formulated; water vegetation is studied as cost-effective method to organize water regime instead of retaining structures.

The article presents the research of horizontal ceramic drainage with various geotextile materials and glass fiber sheets to protect drainage from silting on slightly water-permeable loamy soils. Drainage modules were obtained within the range of 0.02-0.4 l / s * ha at a calculated value of 0.6 l / s * ha (the drains were covered with excavated soil). According to preliminary data, the brands of geo-textiles Typar®SF20 (DuPont), PNMPEV-I-125C ("Gronema" Ltd), PNM-PPV-T-150 withhydrophilic additives (PINEMA Jsc) are the most suitable for dehydration of slightly water-permeable soils.

The article presents the results of laboratory investigation of siltation to discover how mechanical particles affects throughput ability of polyethylene corrugated pipes. Capacity of drainage systems depends on reliable operation of drains and collectors and throughput ability. Siltation in pipes caused by sand of 0.1-0.3 diameter decreases throughput ability by 27-70 %. The value of the eroding flow velocity necessary for self-cleaning of the corrugated pipes is obtained, which is considered as minimally non-insulating.

This article discusses the steady-state motion of a fluid in near filtering zone of double bore in its regeneration by circulation-reagent method, describes the technology of construction of double bore. Theoretical investigation of flow during regeneration of the water intake is carried out.

Water supply sources in village are analyzed and presented in article. Bad quality of water in shaft well is noted according nitrate content especially. Recommendations to develop shaft wells to obtain clean water which could meet villager demand are presented. Water supply carried out by fine-tube wells of 10-13 m deep is described as an alternative to shaft wells.According accounting parameters of wells in hydrological condition of Polesye region and the similar one are recommended. Hydro flushing is given in article as an effective technology to build wells. Recommendations to improve water supply in villages are presented.

Being enriched with mineral fertilizers legume grasses with alfalfa or clover hybrid provide high productivity in three slopes. Herbage with alfalfa is characterized as drought-resistant and increase its own percentage in grass mixture up to 34.2-57.8 %. Averagely every percent of legume component in herbage increased the content of crude protein in its dry mass by 0.31 %. The cereal-legume silage with alfalfa harvested in a polymer film had better digestibility and the nutritional value of its dry matter was higher in terms of fodder units (by5.6 %) and exchange energy (by 3.9 %) than in silage from trenches. Main technical features to produce silage in a polymer film are presented in article.

Livestock run-off was found as a good variant to fertilize soil by sprinklers compared with tank-spreaders. Anaerobic treatment of manure in methane tanks gives the possibility to obtain biogas and to increase the quality of organic fertilizers and enhance working condition during treatment. Bioengineering constructions can clean return water from fields.

To obtain a compost-based organic waste and peat proposed technological process and technical facilities for accelerated composting in special constructions with active aeration (fermentation chamber), as well as additional ways to reduce losses of nutrients and to obtain high-quality organic fertilizer and nutritious soils based on peat.

A methodology for assessing the sustainability of resource-intensive technologies and its automation by means of web-based application "Enterprise Ecology Assessment" are described.

The positive aftereffect of sewage sludge, liming and humates of potassium, both extracted from a vermicompost on the basis of sewage sludge, and included in peat-humic fertilizer, on biogeochemical indicators of agrocenosis was revealed. Soil treatment by potassium humate extracted from a vermicompost increased the value of the total contamination index (Zc) of mobile heavy metals in comparison with the background version, especially with a minimum dose of liming, and as a result Zc of oatsan was increased, primarily straw. Peathumic fertilizer decreases mobility of heavy metals in 020 cm soil layer on the basis of Zc level.