Abstract
Ushbu maqolada Sirdaryo viloyatidagi sug‘oriladigan soz tuproqning 0- 80 sm kesimidagi qatlamlari bo‘yicha namlik, pH, elektr o‘tkazuvchanlik, suvda eruvchan tuzlar va oziqa elementlari taqsimoti tahlil qilindi. Tuproq bitta nuqtadan 0-5, 5-10, 10-20, 20-40, 40-60 va 60-80 sm chuqurliklardan olingan. Natijalar qatlamlar bo‘yicha tuzlar miqdori bir maromda emasligini, yuqori qatlamda elektr o‘tkazuvchanlik va natriy ko‘rsatkichi yuqoriroq, 5-10 sm qatlamda esa xlorid ionlari nisbatan ko‘proq ekanini ko‘rsatdi.References
1. Dokuchayev V.V. Russkiy chernozem. Sankt-Peterburg, 1883.
2. Kachinskiy N.A. Fizika pochvy. Moskva: Vysshaya shkola, 1970.
3. Agrofizicheskiye metody issledovaniya pochv. Moskva, 1966.
4. Lal R., Shukla M.K. Principles of Soil Physics. CRC Press, 2004.
5. Metternicht G., Zinck J.A. Remote sensing of soil salinity: Potentials and constraints // Remote Sensing of Environment. - 2003. - Vol. 85, No. 1. – P. 1–20.
6. Agrolandscapes and soils of Mirzachol: a collection of scientific articles / Academy of Sciences of the Republic of Uzbekistan. - Tashkent: Science, 2018. - 245 p.
7. Richards L.A. (Ed.). Diagnosis and Improvement of Saline and Alkali Soils. – Washington, D.C.: United States Department of Agriculture, USDA Handbook No. 60, 1954. – 160 p.
8. Determination of water hardness using the colorimetric method. Educational Research in Universal Sciences ISSN: 2181-3515 VOLUME 2 | SPECIAL ISSUE 16 | 2023
9. Schwarzenbach G., Flashka G. Complexonometric titration. // M.: Khimiya, 1970. 360 p.
10. Kachestvo vody. Opredelenie soderjania chloride. Titrovanie nitratom cerebra s chromatnym indicatorom (Method Mora), ST RK ISO 9297-2008 01.01.2019
11. Yuri Loginov1, Vladimir Kuznetsov2 // A New Method for the Quantitative Determination of Sulfate Ions in Aqueous Extracts from Soils and in Aqueous Media, and Analytical Equipment for Its Implementation // Science Journal of Analytical Chemistry 2023; 11(1): 1-8 http://www.sciencepublishinggroup.com/j/sjac doi: 10.11648/j.sjac.20231101.11 ISSN: 2376-8045 (Print); ISSN: 2376-8053 (Online)
12. O. Fayzullayev, N. Turobov, E. Ro‘ziyev, A. Kuvatov, N. Muhammadiyev // Practical laboratory exercises in analytical chemistry // Tashkent "New Generation of the Century" 2006