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6. .. - / .. // ³ ...

104 ISSN 0587-2596. . 2015. 83

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/ .. // ³

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2008. 4. . 59-62.

7. : / . .. ̳. , 2010. 58 .

㳿 07.04.2015

CHANGING ALKALI HYDROLYZED FORMS OF NITROGEN IN DARK GRAY PODZOLIZED SOIL

UNDER THE INFLUENCE OF MINERAL FERTILIZATION OF SPRING BARLEY

N.I. Vega Lviv National Agrarian University (vega_natali@ukr.net) Research was conducted to study the effect of different fertilizer doses on content change of the alkalihydrolyzed nitrogen in a dark gray podzolized soil under the cultivation of spring barley. The object of the research was biochemical processes associated with the formation of alkalihydrolyzed nitrogen in dark gray podzolized soil in Western Forest Steppe character of their changes under the influence of mineral fertilizer system of spring barley. Research was accompanied by double-factor field experiment scheme, where factor A mineral fertilizer system, acted as B factor in foliar fertilizing. On reaching two-year results showed that the use of mineral fertilizers positively influences the dynamics of change of alkali hydrolyzed forms of nitrogen in dark gray podzolized soil for growing barley. It was found that the variants with the application of N60P45K45 and N60P60K60 favorable conditions for nitrogen nutrition of barley, as compared to unfertilized variant in the 0-20 cm layer ranged under 42-43 and 50-55 mg / kg soil, depending on the phase of development.

Key words: alkali hydrolyzed forms of nitrogen; dark gray podzolized soil; the rate of fertilizers; foliar fertilizing; spring barley.

631.416.4:631.816.1

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1

.. ͳ,.. (oooolga@ukr.net) . , . , .

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. , - , . , . , , [1, 2]. 䳺 [3, 4].

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ᒺ . -- ( 1964 ) 쳿 , 10- , . ( 1 N45P45K45; N90P90K90 N135P135K135), ( 9 ; 13,5 18 ) - ( 4,5 + N22P34K18; 9 +N45P68K36; 13,5 + N68P101K54) .

. 0-30 :

( ) 3,31 %; ( -) 48 /; ( ) 150 /; ( ) 90 /;Ѳ 6,2;

2,5 /; 95 %. ( i) 0-20 116 168 / .

. . 31497058019 [6].

. , 0,6 %. , [7].

- , (.). , . (0,901,14 % ), (0,600,66 %). , , 0,440,51 %, (0,360,43 % ). , , 0,821,14 %.

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, . , 3-4 , , . 1,70 % 2 , () , , 2,13-2,21 %.

106 ISSN 0587-2596. . 2015. 83

   

, , , , 2,5 , - 3,5 .

, , . , , 9-10 %, 13 %, 3-13 %. , . , 2 , , 14-22 %.

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1. .. , - / .. , .. , .. // . 1989. 3. . 27-39.

2. .. , , - /. . . , . . , .. // . 1990. 1. . 26 .. / .. , .. , .. // . 1985. 10. . 38-42.

4. .. , / .. // . 1980. 7. . 54-58.

5. . / . // . 2013. 4. .

22-24.

6. . , , : 31-497058-019-2005 // . :

13, 2005. . 2. . 189-208.

7. .. / .. // . 2009. 2. . 28-34.

㳿 15.04.2015

THE CONTENT OF POTASSIUM IN THE BASIC AND NOT COMMODITY PARTS OF A YIELD OF

CULTURES IN A FIELD CROP ROTATION DEPENDING ON RATES AND SYSTEMS OF FERTILIZERS

A.V. Nikitin, J.I. Kryvda Uman National University of Horticulture (oooolga@ukr.net) The content of potassium in plants depends on the biological characteristics of the varietal crops, soil and climatic conditions, the level of fertilizer application and other factors and is nota constant. The content of the general forms of potassium in one sample plant material was determined by wet ashing. Vegetative plant organs are characterized by higher potassium content than reproductive. The content of potassium in the basic production is largely dependent on the biological characteristics of culture and of small systems and norms fertilizers. According to his the main content in the product in terms of dry matter, rotation of culture were located in such descending order: corn silage clover peas sugar beet barley winter wheat maize. The content of potassium in the green mass of corn and other crops non- tradable of products was significantly higher than in the basic and largely ranged depending on the crop rotation fertilizer system.

Key words: rotation; prolonged use of fertilizers; potassium in harvest; basic and non-tradable harvest;

fertilization system.

332.155:631.8:633.85

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.. (11vanusha11@mail.ru) (2013-2014) , 㳿 . , . N120P60K60 , 2,01 / 55 %.

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