SUG‘ORISH TARTIBLARINING O‘SIMLIK BO‘YIGA TA’SIRI

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lmiy jurnal

Abstract

Qishloq xo‘jalik ekinlari yetishtiriladigan mintaqaning ob-havo sharoiti, tuproqdagi zahira nam miqdori va navga bog‘liq holda o‘suv davri davomida soya o‘simligini 3-4 marta sug‘orish talab etiladi. Soya o‘simligi o‘sishi va rivojlanishi, hosildorligi ob-havo va iqlim sharoitlari qarotida qo‘llaniladigan agrotexnik tadbirlarga bog‘liq bo‘lib, sutkalik suv sarfi soyaning o‘sish fazalariga bog‘liq holda bo‘lib, maksimal suv sarfi dukkaklarni shakillanish fazasidakuzatilgan. Soya yetishtirish davrida oziqa moddalar bilan va suv bilan ta’minlanganlik darajasi o‘sish va rivojlanishni cheklovchi omillar sanaladi

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The level of water supply during the cultivation of soybean as a repeated crop was positive when the soil moisture before irrigation was 70-80-80 in all irrigation methods. However, excessive water supply increased the plant height (88.6 cm at the ripening stage) and the tendency to lie down. Based on the results of a three-year average analysis , the use of modern agrotechnologies that save water resources in the cultivation of soybean as a repeated crop, namely drip irrigation in agronomic conditions with a pre-irrigation soil moisture ratio of 70-75-75 per repeated soybean plant height (13.9; 35.8; 53.3; 73.1 cm), was found to be the optimal irrigation method compared to other agronomic and pre-irrigation soil moisture options.

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