Journal of Science and Innovative Development ISSN 2181-4317

THE IMPACTS OF THE RATES OF SOWING SEEDS AND NITROGEN-MINERAL FERTILIZERS ON THE GROWTH OF THE RICE OF ‘GULJAKHON’ VARIETY

Қаландаров Бахтиёр Искандарович April 27, 2021

Abstract

<p>This article describes the impacts of the seeding rates of seeds and nitrogen fertilizers&nbsp;on the field germination as well as on preservation of plants and forming of the leaf area and dry&nbsp;mass of the rice of Guljakhon variety. With an increase in the seeding rate from 3 to 6 million&nbsp;pieces per hectare, the field germination rate has decreased by 17,9 %, and the survival rate of&nbsp;plants before harvest has improved by 2,4%. Increased levels of nitrogen fertilizers from N90 to&nbsp;N150 have improved the field germination by 1.9 %, and have dropped preservation of plants&nbsp;before harvest by 2,3%. It has been revealed that the plant height (r = 0,49) is positive, the leaf&nbsp;area (r = -0,67), and dry weight of plants (r = -0,73) negatively correlate with the seeding rate.&nbsp;The nitrogen nutrition dose has a positive relationship with the leaf area (r = 0,64), dry weight of&nbsp;<br /> plants (r = 0,55) and plant height (r = 0,88).</p>