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

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SCIENCE AND INNOVATIVE DEVELOPMENT

SCIENCE AND INNOVATIVE DEVELOPMENT

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

AUTHORS

B.Qalandarov

Sholichilik ilmiy-tadqiqot instituti ilmiy ishlar bo'yicha direktor o'rinbosari

Tags

# variety# сорт# seeding rate# кўчат қалинлиги# нав# барг сатҳи# площадь листьев# leaf area# plant density# уруғ экиш меъёри# норма высева семян# уруғларнинг дала унувчанлиги# қуруқ массаси# озиқлантириш меъёри# полевая всхожесть семян# густота растений# сухая масса# норма питания# field germination of seeds# dry mass# nutritional rate

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https://eroi.uz/11.0094/A0422-0067

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