ТУПРОҚҚА ТУРЛИ МУДДАТЛАРДА АСОСИЙ ИШЛОВ БЕРИШНИ ТУПРОҚНИНГ АГРОФИЗИК ХУСУСИЯТЛАРИ ВА ПАХТА ҲОСИЛИГА ТАЪСИРИ

Abstract

The highest yield has been collected in the 3rd treatment, in which the land was ploughed to a depth of 28-30 cm after harvesting autumnal wheat, then planting and harvesting a repeated crop, then again ploughing at the same depth in the autumn. Comparing to other treatments, a highest cotton yield was achieved (28.1-29.8 centners per hectare). In this case, compared to the 1st and 2nd treatments, in which plowing was carried out at 28-30 cm without watering or with irrigation in the summer after wheat harvest, it was possible to obtain an additional cotton yield of 4.8-5.2 centners per hectare. An additional 0.3-1.3 centner/ha of cotton was obtained compared to the option (4th treatment) in which the area freed from autumnal wheat was plowed to a depth of 28-30 cm.

References

Тошболтаев М., Тўхтақўзиевлар А. Ғалладан бўшаган майдонларни пешма-пеш сифатли шудгорлаш. Ўзбекистон қишлоқ хўжалиги журнали. –Тошкент: – 2011. – №7, –5 б.

Рўзимуродов О., Бўриев Я. «Ғўза хосилдорлигининг шудгорлаш муддатлари ва чуқурлигига боғлиқлиги» «Пахтачиликдаги долзарб масалалар ва уни ривожлантириш истиқболлари» мавзусидаги ҳалқаро илмий- амалий конференция маърузалари асосидаги мақолалар тўплами. –Тошкент:–2009. – 213-214 б.

Дала тажрибаларини ўтказиш услублари. –Тошкент: –2007. – 148 б.

Методи агрофизических исследований почв. –Ташкент: – СоюзНИХИ, –1973. – 132 с.