TYPES OF MINERAL FERTILIZERS USED IN COTTON GROWING AND APPLICATION RATES
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Abstract
From an agricultural point of view, fertilizer should be applied in such a way that it allows to increase the cotton yield, and the resulting additional crop covers all the costs associated with the application of fertilizers. The rate of potassium fertilization with phosphorus is determined depending on the amount of mobile phosphorus in the soil and the amount of exchangeable potassium. This ratio of phosphorus and potassium increases by 10% in marginal soils and decreases by 10% in fertile soils.
The above calculations for fertilizers are not yet perfect. However, other methods of calculating the fertilizer rate cannot fully satisfy the basic requirements for maximum additional crop production if less fertilizer is used per unit of crop. But the important thing is that every kilogram of nitrogen given to cotton yields at least 14-15 kg of cotton.
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References
Руководство по выращиванию хлопка. Издательство "Мехнат", 1989. 109-117с.
Энциклопедия хлопководства. Том - 1, Ташкент - 1985, стр. 524-526.
Larchenko K.I. Ecology of cotton scoops and terms of dealing with it. Tashkent: Fan, 1968. P. 189.
Khojaev Sh.T. New insecticides and methods of their use in the fight against cotton scoop in the predicted time. Abstract. diss.candidate of agricultural sciences: 01/06/11 - plant protection from pests and diseases. Tashkent: Tashkent Agricultural Institute, 1974. P. 22.
Shokirova G., Sattarov N., Khojaev Sh.T. Effective insecticides against cotton nightshade // Journal of Agriculture of Uzbekistan, 2013. № 8. P. 28
Khojaev Sh.T. Modern methods and means of combined protection of plants from pests. Tashkent: “Navruz”, 2015. P. 552
List. Pesticides and agrochemicals approved for use in agriculture of the Republic of Uzbekistan. (State Chemical Commission). Tashkent, 2013. P. 333
Шокирова Г.Н., Хўжаев Ш.Т. Ғўзани тунламдан ҳимоя қилишда ўсимликларни чилпишнинг аҳамияти /Ўсимликларни ҳимоя қилишда УҲҚТ нинг ўрни ва истиқболлари илмий-амалий конф. (22-23.XII.2016 й., Тошкент). – Тошкент: ЎҲҚИТИ, 2016. – Б. 9-12
Ғўза тунламига қарши замонавий кураш тизими (тавсиянома) //Тез.: Ш.Т.Хўжаев, Г.Н. Шокирова, Ф.Юлдашев, С. Мирзаева, Ш.Зокиров. – Тошкент: ЎзЎҲҚИТИ, 2018. – 22 б
Хўжаев Ш.Т., Шокирова Г.Н., Мирзаева С., Йўлдошев Ф. Уватларда олдини олиш ишловини ўтказишнинг зараркунандаларга қарши самарадорлиги //Агро кимё ҳимоя ва ўсимликлар карантини журнали. – 2018. - №6. – Б. 21-23. (06.00.00; №11)
Шакирова Г.Н. Хужаев Ш.Т Важность агротехнический методов против вредителей растений //Универсум:технические науки: научный журнал. – Москва, 2020. - №7. – С.-25.