Особенности перезимовки ячменя озимого в зависимости от доз и соотношений минеральных удобрений
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ЯРЧУК, И., БОЖКО, В.. Особенности перезимовки ячменя озимого в зависимости от доз и соотношений минеральных удобрений. In: Solul şi îngrăşămintele în agricultura contemporană, 6-7 septembrie 2017, Chișinău. Chișinău, Republica Moldova: Centrul Editorial-Poligrafic al USM, 2017, pp. 219-223. ISBN 978-9975-71-927-8.
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Solul şi îngrăşămintele în agricultura contemporană 2017
Conferința "Solul şi îngrăşămintele în agricultura contemporană"
Chișinău, Moldova, 6-7 septembrie 2017

Особенности перезимовки ячменя озимого в зависимости от доз и соотношений минеральных удобрений

CZU: 633.16”324”:631.8:632.11

Pag. 219-223

Ярчук И., Божко В.
 
Днепровский государственный аграрно-экономический университет
 
Disponibil în IBN: 14 martie 2018


Rezumat

Mineral fertilizers dosed and proportions study for winter barley was held in Ukrainian Steppe on black earth. Humus contents is 3.6 - 4.2 %. Medium and high supply of macro elements. Common methods were used during the investigation. Weather conditions were typical for Ukrainian Steppe. Winter barley (Osnova breed) was sowed in optimal terms for this zone in weedfree fallow. It was noticed that autumn hydrothermal conditions influence the growth, developing and resistance to adverse winter conditions. Before the stop of autumn vegetation, all plants of winter barley were well developed and gained more than 15 grams per 100 completely dry plants, height more than 23cm, 2-3 stems. The depth of the tillering zone is 2.1 - 2.5 cm. Positive influence of doses and mineral fertilizer proportions. It was determined that doses and mineral fertilizer proportions influence well on the wintering of winter barley. All variants of doses and proportions in different ways raised winter resistance. The highest survival rate got in 2 cases: moderate doses of phosphate-potassium fertilizers P30K30 and full mineral fertilizer N30P90K60. It will provide safety of plants at the level 87.9% and 87.7% correspondingly. On the control (without fertilizers) this indicator was 82.2%. Mineral fertilizers in different doses and proportions highly influenced on the winter barley productivity. Any proportion or type of fertilizer increased the yield of plants. The most significant influence was made by nitrogen fertilizers. The highest productivity (3.48 tons per hectare) was get using N60P90K60. Comparative to 3.48 tons per hectare at control. Also quite high productive was get using N30P60K60 (4.37 tons) and N30P60K30 (4.27 tons). 

Cuvinte-cheie
Winter barley, fertilizer dose, growth, development, winter hardiness, Yield,

fertilizer ratio