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^: 3576 2014 7
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^: = The reaction of potato varieties for different kinds of fertilizers
^: , 2014; N 7. - . 74-76
^: 2014
^: . ..-.:.76
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^: 2- 2006-2008 . . : - : 1 - ; 2 - . - : 1 - (); 2 - -5 (), N43P35K64 S11Mg11; 3 - () (N43P42K62). 30-35 /. , . 3 30,8, - 30,6 /. 9,6 / 40,0%, - 11,1 / 49% . . 1,8, - 2,0 / 05 1,2 /, . 1 . (37,6) (785) , - 39,6 . ./ 782 . . / . , - . , . , 30,6-30,8 /, .

aref2 1 In the stationary field of two-factor experiment was conducted research on the scheme: the factor A - grade: A - Baron; A 2 - Spyridon. Factor B - fertilizers: B, - without fertilizers (k); B 2 - kemira potato-5 (N 43P 35K 64 S 11 Mg 11); B 3 - nitrophoska + potassium sulphate (Kc) (N 43P 42K 62). The aim of the experience was a ground of interaction of different potato varieties and kinds of mineral fertilizers on the fo rmation of the yield level of 30-35 t/ha. The formation of potato yields as early ripening grades Baron and mid Spiridon depended on abiotic conditions, and fertilizers. Average fertilizers for 2006-2008 tuber yield varieties Baron has made 30.8 and varieties Spiridon - 30.6 t/ha. From kemira fertilizer potato-5 grade Baron received increase in comparison with non-fertilized background 9.6 t/ha or 40.0 %, grade Spiridon - 11.1 t/ha and 49 % respectively. The greatest effects in both varieties were obtained by fertilizer potato mixture of nitrophoska with sulfuric acid potassium. Kemira fertilizer potato-5 inferior mixture of nitrophoska with sulfuric acid potassium cultivar Baron 1.8 and the variety Spyridon - to 2.0 t/ha under LSD 05 private differences 1.2 t/ha, the difference is significant. When fertilizer potato mixture of nitrophoska with sulfuric acid potassium in comparison with kemira potato-5 more than the quantity in the nest and their weight with the same number of nests per hectare. Maximum value of the absorption coefficient headlights received with the greatest area of leaves (37.6) and photosynthetic capacity (785) the variety Baron when kemira fertilizer potato-5, the variety Spiridon - at the option of the mixture nitrophoska + potassium sulphate 39.6 thousand m2/ha and 782 thousand m 2 x days/ha respectively. A three-year study showed that on dark grey loam soil in conditions of Sverdlovsk area, the best effect is obtained from a mixture of nitrophoska with sulfuric acid potassium balanced in nutrients with kemira potato-5. The reaction of the studied cultivars for applied fertilizers was almost the same as the average yield on fertilizers amounted to 30.6-30.8 t/ha, which corresponds to the set goal.

^TRN: 1456919
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