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Query : ISSN:(1990-4665)

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  • soil

There were cited the results of researches for 2010-2012 obtained in the stationary experiment of the chair of general and irrigated land management of Kuban State Agrarian University on the study of influence of the system of main soil processing under soya beans on the dynamics of main agrophysical indexes of leached black soil: on density of composition, solidity, general porosity, coeffici ...

SUBJECT: soil treatment; coefficient of structural property; soil solidity; direct sowing; soil density

POSTED TO: Polythematic Online Scientific Journal of Kuban State Agrarian University [1990-4665]

There are given the results of long-term research of different forms of soil nitrogen content and their relationships with the content of total nitrogen in leaves and yield. It was detected a strong positive correlation among them hydrolyzable nitrogen content in the soil and total nitrogen content in the leaves and yield. It is proposed the use of this index for diagnostic of soil nitrogen supply

SUBJECT: apple; soil hydrolyzable nitrogen; nitrate soil nitrogen; yield; total leaf nitrogen

POSTED TO: Polythematic Online Scientific Journal of Kuban State Agrarian University [1990-4665]

In the article we have investigated the influence of nickel oxide in the amount of 100, 1000 mg/kg of the soil (1, 10 MPC), combined with the influence of an alternating magnetic field of induction of 50, 100 and 650 µT power frequency of 50 Hz on the biological properties of alkalinity black soil

SUBJECT: pollution of nickel oxide; alkalinity black soil; a combined effect; soil enzymes; alternating electromagnetic fields

POSTED TO: Polythematic Online Scientific Journal of Kuban State Agrarian University [1990-4665]

The article contains the results of the researches on the experimental field in the "Kuban" educational farm of Kuban State Agrarian University. In the black leached soil we defined particle size, the structure and the composition of water-physical properties of the soil, which are the most important conditions for high and stable crop productivity. We also gave morphological and genetic chara ...

SUBJECT: humus; sand; humidity; tillage; soil profile

POSTED TO: Polythematic Online Scientific Journal of Kuban State Agrarian University [1990-4665]

Soil degradation (erodere – eat away, lat.) - a process in which result pieces of rocks and soil are separated from of their initial location. Is then transferred and deposited in some new place. The factors of erosion are water, wind, landslides, rock particles and etc. Erosion is the process of destruction and demolition of the soil cover (or parent rocks) flows of water or wind what causes ...

SUBJECT: valleys; deltas; geological erosion artificial type of erosion; soil-forming rocks; plains

POSTED TO: Polythematic Online Scientific Journal of Kuban State Agrarian University [1990-4665]

Soil degradation (erodere – eat away, lat.) - a process when pieces of rocks and soil are separated from their initial location. Then transferred and deposited in some new place. The factors of erosion are water, wind, landslides, rock particles and etc. Erosion is the process of destruction and demolition of the soil cover (or parent rocks) by flows of water or wind which causes depletion of ...

SUBJECT: valleys; deltas; geological erosion artificial type of erosion; soil-forming rocks; plains

POSTED TO: Polythematic Online Scientific Journal of Kuban State Agrarian University [1990-4665]

Over the past 15 years due to removal with crops of rice crop rotation, as well as with field waste and seepage water content of mobile forms of boron in soils of rice irrigation systems in the Krasnodar region decreased by 10 %, cobalt by 14 %, manganese by 10 %, copper by 7 %, molybdenum by 15 % zinc by 6 %. Impoverishment of soil with calcium and sulfur is observable. Need of using micronut ...

SUBJECT: neutralized phosphogypsum; yield; polycomponent fertilizer; phosphorus in soil and plants; potassium in soil and plants

POSTED TO: Polythematic Online Scientific Journal of Kuban State Agrarian University [1990-4665]

The article shows a possibility of using neutralized phosphogypsum as multicomponent fertilizer for rice crops. In the system of rice fertilization replace of 150kg/ha of ammophos during main application with 40 kg/ha of carbamide and 4 tons/ha of phosphogypsum applied in spring provides the same content of available forms of nitrogen, phosphorus and potassium in soil and plants as with applic ...

SUBJECT: neutralized phosphogypsum; yield; polycomponent fertilizer; phosphorus in soil and plants; potassium in soil and plants

POSTED TO: Polythematic Online Scientific Journal of Kuban State Agrarian University [1990-4665]

The choice of the most optimal composition of aggregates for tillage for work in a certain economy is very difficult from many determined and casual factors. In connection with what, it is suggested to conduct researches with the use of quantificational and quantifier algebra logic. Also we need minimum influences on ecology, being characterized as a predicate of "minimum of expenses on indemn ...

SUBJECT: tillage; prognosis; quantum; predicate; functions

POSTED TO: Polythematic Online Scientific Journal of Kuban State Agrarian University [1990-4665]

The article presents the studies that were conducted in 2011-2014 agricultural years in the experimental rotation hospital departments of Agriculture and Agricultural Chemistry, located in the Experimental Station of Stavropol State Agrarian University. The hospital is part of a geographical network experiments with fertilizers and registered in the register of long experience certificates of ...

SUBJECT: weather conditions; varieties predecessor; system of fertilizers; receptions for treatment of soil; winter wheat

POSTED TO: Polythematic Online Scientific Journal of Kuban State Agrarian University [1990-4665]