Keywords:
- agrochemical cartogram
- importance
- irrigated typical gray soil
- nitrogen
- phosphorus
- potassium
- rate of application
- mineral fertilizer
- yield
- centner
Abstract
This article looks at the importance of agrochemical cartogram and humus, mobile phosphorus of old irrigated typical gray soil distributed in the field experiment conducted in Chinoz district of Tashkent region. It also explores level of supply of exchangeable potassium and in order to obtain 35-40 hundredweight per hectare of cotton, the norms of using nitrogenous, phosphorous and potassium mineral fertilizers depending on the level of soil nutrient supply.
References
International Fertilizers Association (IFA) https://www.fertilizer.org/
https://boomin.ru/publications/article/mirovoy-rynok-udobreniy/
Рузметов М.И., Қўзиев Р.Қ., А.Ж.Баиров ва бошқ. Суғориладиган ерларда тупроқ агрокимёвий тадқиқот ишларини бажариш ва агрокимёвий картограммалар тузиш ҳамда минерал ўғитларга бўлган илмий талабни ишлаб чиқиш бўйича услубий кўрсатмалар. – Тошкент, 2019. – 36 б.
