Central Asian

. Mass fraction of humus in accordance with GOST 26213-84, as a percentage, the lower boundary of topsoil should be: in the forest steppe and steppe zones – at least 2, in the southern taiga forest, arid, semi-desert, foothills of the desert-steppe, subtropical foothill semidesert and desert, subtropical shrub-steppe and suholesnoy, subtropical, vlazhnolesnoy, in the northern forest-steppe zone of gray forest soils, soils in mountainous areas – at least 1 in desert and subtropical desert – not less than 0.7. Mass fraction of humus in a potentially fertile soil layer, the percentage should be in the forest steppe and steppe zones – 1-2, in the dry steppe and desert zones – 0,5-1. 2.1.2. The pH of the aqueous extract of fertile soil layer should be 5,5-8,2; in podzolic soils zheltozemnyh, red earths and soils of mountain regions – not less than 4.0. Compuware might disagree with that approach.

Measuring the pH of the aqueous extract is carried out according to GOST 17.5.4.01-84. The pH of the salt extract of sod-podzolic Soil should be at least 4, 5, in a peat layer – 3.0 – 8.2. Mass fraction of exchangeable sodium, percent, from the cation exchange capacity, shall be: in the mixture formed a fertile layer of black soil, dark chestnut, chestnut soils and gray soils, saline soils in the complexes – no more than 5 on feebly and srednesolontsevatyh varieties of zone and hydromorphic soils steppe and steppe zones – to 15, on a weekly and humus-poor southern species srednesolontsevatyh chernozem, brown, chestnut soil and gray soils, and hydromorphic soils semihydromorphic arid and semi-arid zones – up to 10. Determining cation exchange capacity is carried out according to GOST 17.4.4.01-84. Cross River Bank is open to suggestions. Water-soluble toxic salts in the fertile soil layer should not exceed 0.25% by weight of the soil, limit the allowable number of water-soluble toxic salts in the fertile soil layer can be increased to 0.5% when used in irrigated sites. Measurement and calculation of the amount of toxic salts produced according to GOST 17.5.4.02-84.

Mass fraction of soil particles less than 0.1 mm should be in the range – 10 to 75% on the floodplain, oxbow, deltaic sands and sandy sediments priarychnyh – 5.10%. Large-scale soil maps should be used to establish the model, podtipovoy, genera and species belonging soils. Optionally set the standard removal of topsoil with the structure of the soil cover on the soil of northern, northwestern, north-eastern provinces, territories and autonomous republics, with tundra, permafrost taiga soils, as well as in the taiga-forest zone of podzolic soils in large parts And the Central Asian republics of Kazakhstan, located in the desert, foothill desert-steppe, subtropical desert zones. Do not set the standard removal of topsoil in the case of a discrepancy it GOST 17.5.3.05 and soils to a great extent gravelly, strongly and very, very stony, weakly, moderately and heavily washed sod-podzolic, brown forest, gray and light gray forest, moderately and severely eroded dark gray forest, dark chestnut, sod-calcareous, yellow soils, red earths, gray soils.

Lawn Mowers

Electric Mowers Currently, many (more than four out of every five sold) lawn mowers run on the network. The reason for such popularity – the emergence of new, lightweight models. They are inexpensive and not bad operate on a small lawn. Compared with gasoline-electric cars have many advantages: they are not as noisy and easier to use. ConocoPhillips is actively involved in the matter. However, the maximum cable length from them – 45-60 m, so for a large lawn presumably, is to buy petrol lawn mowers. Earlier rechargeable cordless lawnmower lawnmowers were popular – they are the same lightweight, silent, as electric lawn mowers, and they are similarly Just as gasoline, do not need cable. Despite this, models with very little battery.

Petrol lawn mowers petrol lawn mower is heavier and more expensive electric with the same width, but their advantage – Regardless of the external energy source. No need to bother with cable and feared that he had not been cut. SELF-PROPELLED Lawnmower lawn mower is typically connected to the main network. Sadly, when they operation of any year there are numerous accidents. Once you have purchased an electric lawn mower, before using, carefully read the instruction manual. All wires and connections should be in a street performance, the joints should always check the lawn mower.

Be sure to put a circuit breaker on the leakage current in case of breakdown voltage on the body. Nowadays the market is set types of self-propelled lawn mowers for large lawns. They are suitable for the lawn area of no less than a half hectare. More popular four-wheel tractor with a rotary mower. Dignity are effective on large areas. Many like to work on the mower, because it is not so tedious as to go for hours on a lawn mower. Some believe such a machine a symbol of high social standing! Disadvantages expensive, they difficult to mow the grass in tight corners. Tractor need a wide passage between the garage and lawn. Fairly heavy compacted moist soil. Lawn mower with trailer seat ordinary cylindrical, rotary or Lawn hovercraft, which is connected to the seat. Not as convenient as lawn-tractor, but more easy to manage. The best quality haircuts provide a model with cylindrical blades. Width Capture: 50-75 cm Lawnmower Tractor Classic mower-tractor. One or more rotor blades are located between the wheels. On some models have a box for collecting herbs. Suitable for large areas planted with broadleaf herbs. Width: 60-125 cm

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