Chemical Composition of Grain and Straw with Different Amounts of NPK Nutrients

Abstract

The high yield and quality of wheat, besides genetics, owes to the cultivation technology, and within it a significant place is occupied by fertilization. The aim of this paper was to determine the chemical composition of grains and straw of wheat grown in different amounts of NPK nutrients on a long-term field experiment. Six fertilization treatments were selected: (i) unfertilized control variant, (ii) N100P50K50, (iii) N100P100K50, (iv) N100P100K100, (v) N100P150K50, (vi) N100P150K150. Based on the obtained results, significant influence of individual varieties of fertilization was determined on the content of the studied macroelements (N, C, P, K, Ca and Mg) in grains and straw.

Visok prinos i kvalitet pšenica, osim genetike, duguje i tehnologiji gajenja, a u okviru nje značajno mesto zauzima đubrenje. Cilj ovog istraživanja bio je da se utvrdi hemijski sastav zrna i slame pšenice gajene pri različitim količinama NPK hraniva na dugoročnom poljskom eksperimentu. Odabrano je šest tretmana đubrenja: (i) kontrola (neđubrena varijanta), (ii) N100P50K50, (iii) N100P100K50, (iv) N100P100K100, (v) N100P150K50, (vi) N100P150K150. Na osnovu dobijenih rezultata, utvrđen je različit uticaj pojedinih varijanti đubrenja na sadržaj ispitivanih makroelemenata (N, C, P, K, Ca, Mg) u zrnu i slami.