The aim of the study was to determine the influence of biostimulator Kelpak SL and nitrogen dose on the content of structural and nonstructural carbohydrates, as well as lignin in Dactylis glomerata and Festulolium braunii. A field experiment was conducted in 2009-2012 at the experimental site located in Siedlce, belonging to the University of Natural Sciences and Humanities. Grass seeds were sown in spring 2009. In the years of full use (2010-2012) the following fertilization was applied: “0” (without Kelpak and nitrogen); Kelpak (without nitrogen); nitrogen – 50 kg·ha-1; nitrogen – 50 kg·ha-1 + Kelpak, nitrogen – 150 kg·ha-1; nitrogen – 150 kg·ha-1 + Kelpak. Each year three grass cuts were collected, and the total dose of nitrogen and potassium (160 kg·ha-1 K2O) was divided into three equal parts and used for each regrowth. Phosphorus (40 kg·ha-1 P2O5) was sown once in the spring. The biostimulator was supplied to plants in liquid solution, in the form of spray, at a dose of 2000 cm3·ha-1 diluted with water to
a volume of 400 dm3. This application was used for each regrowth. In the plant material the content of cellulose, hemicellulose, lignin, total protein, crude ash, and crude fat were determined by NIRS method. The nonstructural carbohydrate content was calculated with the formula of subtracting from 1000 g of dry matter the content of all determined ingredients. The obtained results indicate that the application of biostimulator Kelpak SL resulted in a decrease in grass, the content of cellulose, hemicellulose and lignin with an increase of nonstructural carbohydrates. The minimum of structural carbohydrates and lignin contained the plants fertilized with 150 kg N per 1 ha in combination with biostimulator. The most abundant in nonstructural carbohydrates were the grasses where only the biostimulator was applied. Festulolium braunii compared to Dactylis glomerata contained less structural carbohydrates and lignin and more nonstructural carbohydrates. The highest level of nonstructural carbohydrates and cellulose and the least of hemicellulose contained the first cut. The lignin content was the highest in the second cut.
| MLA | Ciepiela, Grażyna Anna. "Zawartość węglowodanów strukturalnych i niestrukturalnych oraz ligniny w Dactylis glomerata L. i Festulolium braunii (K. Richt.) A. Camus zasilanych biostymulatorem Kelpak SL i azotem." Nauka Przyr. Technol. 8.1 (2014): #2. |
| APA | Grażyna Anna Ciepiela (2014). Zawartość węglowodanów strukturalnych i niestrukturalnych oraz ligniny w Dactylis glomerata L. i Festulolium braunii (K. Richt.) A. Camus zasilanych biostymulatorem Kelpak SL i azotem. Nauka Przyr. Technol. 8 (1), #2 |
| ISO 690 | CIEPIELA, Grażyna Anna. Zawartość węglowodanów strukturalnych i niestrukturalnych oraz ligniny w Dactylis glomerata L. i Festulolium braunii (K. Richt.) A. Camus zasilanych biostymulatorem Kelpak SL i azotem. Nauka Przyr. Technol., 2014, 8.1: #2. |
Grażyna Anna Ciepiela
Zakład Turystyki i Rekreacji
Uniwersytet Przyrodniczo-Humanistyczny w Siedlcach
ul. Prusa 12
08-110 Siedlce
Poland
e-mail: ciepielag@uph.edu.pl