COMPLEX APPLICATION OF MINERAL AND ORGANIC FERTILIZERS TO INCREASE THE YIELD OF KHOREZM-127 COTTON VARIETY UNDER IRRIGATION ON MEADOW-ALLUVIAL SOILS OF THE KHOREZM REGION

Authors:Djalilova Gulnora T., Rakhimov Khurmat N.

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Theme: The role of land reclamation and water management in ensuring the sustainable development of agriculture
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Purpose: to assess the effect of different mineral fertilizer (NPK) application schemes in combination with organic additives on the growth, development, and yield of the cotton variety “Khorazm-127” under irrigated alluvial soils in the Khorezm Region.

Materials and methods. Experiments were carried out in 2019–2021 on meadow-alluvial soils in Shovot District. Five fertilizer treatments were tested: an unfertilized control, N₁₅₀P₁₅₀K₁₅₀, N₂₀₀P₁₅₀K₁₀₀, and N₂₅₀P₁₇₅K₁₂₅ complexes with the addition of 25 t/ha of manure in the first year, as well as a treatment with organic fertilizer alone. Observations included plant height, number of leaves, lateral branches and bolls, as well as yield.

Results. The highest indicators were obtained under the N₂₀₀P₁₅₀K₁₀₀ + 25 t/ha manure treatment: plant height, the number of lateral branches, boll formation, and the accumulation of dry matter in leaves, stems, and bolls were at their maximum. The average yield in this variant was 33,76 centners per hectare, which is 46,6 % higher than the control. The other variants also provided an increase in yield, but were less effective. The lowest yield increase was obtained with a one-time application of 25 t/ha of manure – 5.9 c/ha.

Conclusions. The integrated use of mineral fertilizers and organic matter improves cotton nutrition, increasing both its productivity and biomass. The obtained results confirm the advisability of applying N₂₀₀P₁₅₀K₁₀₀ + 25 t/ha manure scheme in the first year of cultivation to ensure stable high cotton yields under irrigated alluvial soil conditions.

Keywords

cotton, mineral fertilizers, organic fertilizers, integrated nutrition, yield, alluvial soils, agronomic measure

For quoting

Djalilova G. T., Rakhimov Kh. N. Complex application of mineral and organic fertilizers to increase the yield of Khorezm-127 cotton variety under irrigation on meadow-alluvial soils of the Khorezm region. Ways of Increasing the Efficiency of Irrigated Agriculture. 2025;95(1):13–27. (In Russ.).

Authors

G. T. Djalilova – Professor, Doctor of Biological Sciences, Professor, National University of Uzbekistan named after Mirzo Ulugbek, Tashkent, Uzbekistan, gulnora_jalilova@rambler.ru, ORCID ID: 0000-0003-1003-4434;

Kh. N. Rakhimov – Head of Department of the Khorezm Scientific Experimental Station, Doctor of Philosophy in Agricultural Sciences (PhD), Research Institute of Grain and Legume Crops, Khorezm, Uzbekistan, gulnora_jalilova@rambler.ru.

Bibliography

1. Merzlaya G.E., Ponkratenkova I.V., 2016. Effektivnost' organomineral'nykh sistem udobreniya [Efficiency of organomineral fertilizer systems]. Plodorodie [Fertility], no. 2, pp. 25-27, EDN: WBFQJV. (In Russian).

2. Niyazaliev B., Tillabekov B., 2013. Mestnoe udobrenie – garantiya vysokogo urozhaya [Local fertilization as a guarantee of high yield]. Sel'skoe khozyaystvo Uzbekistana [Agriculture of Uzbekistan], no. 12, pp. 6-7. (In Russian).

3. Niyazaliev B.I., 2009. Faktory effektivnogo ispol'zovaniya razlichnykh vidov organicheskikh udobreniy [Using factors effectively in various types of organic fertilizers]. Materialy Mezhdunar. nauch.-prakt. konf [Proceed. of the International Scientific-Practical Conference]. Tashkent, pp. 246-250. (In Russian).

4. Satipov G.B., Ismailova I., 2020. Tekhnologiya polucheniya vysokogo urozhaya ot vyrashchivaniya sortov khlopka v Khorezmskom oazise [Technology of obtaining high yield from growing cotton varieties in the Khorezm oasis]. Vestnik Khorezmskoy akademii Mamun [Bullet. of Khorezm Academy of Mamun], no. 3(1), pp. 83-87. (In Russian).

5. Kosimov U.S., Yusupova M., Aliyonov B.S., Karshiyev B., 2017. Vliyanie primeneniya mineral'nykh udobreniy v raznye sroki na tekhnologicheskie pokazateli khlopkovoy volokna [The effect of mineral fertilizers application at different times on the technological indicators of cotton fiber]. Ustoychivoe upravlenie zemel'nymi resursami v usloviyakh izmeneniya klimata: sb. nauch. st. Respublik. nauch.-prakt. seminara [Sustainable Land Management in the Context of Climate Change: Coll. sci. art. of the Republican Scientific and Practical Seminar]. Tashkent, pp. 229-231. (In Russian).

6. Seyidaliev N.Ya., 2012. Vliyanie norm udobreniy i rezhima orosheniya na produktivnost' khlopchatnika [The effect of fertilizer and irrigation rates on cotton productivity]. Vestnik Poltavskoy agrarnoy akademii [Bullet. of Poltava Agrarian Academy], no. 1, pp. 103-106. (In Russian).

7. Seyidaliev N.Ya., 2016. Vliyanie doz mineral'nykh udobreniy i rezhima orosheniya na khozyaystvenno biologicheskie pokazateli khlopchatnika [Influence of mineral fertilizer doses and irrigation regime on economic and biological indicators of cotton]. Permskiy agrarnyy vestnik [Perm Agrarian Bulletin], no. 3(15), pp. 65-69, EDN: WKYCIN. (In Russian).

8. Khayriddinov A.B., Bobonorov R.S., Khushmurodov Zh.P., 2018. Primenenie udob-reniy pod khlopchatnik [Application of fertilizers for cotton]. Simvol nauki [Symbol of Science], no. 3, pp. 27-29, EDN: YRICLX. (In Russian).

9. Sattorov J., 2013. Razvitie nauchnogo obosnovaniya primeneniya mineral'nykh udobreniy [Development of scientific justification for the use of mineral fertilizers]. Sel'skoe khozyaystvo Uzbekistana [Agriculture of Uzbekistan], no. 2, pp. 5-6. (In Russian).

10. Kariev A.A., Yakubova M.T., Sultanova Yu., 1981. Osobennost' azotnogo pitaniya khlopchatnika v geterotrofnyy period razvitiya [Peculiarities of nitrogen nutrition of cotton in the heterotrophic period of development]. Uzbekskiy biologicheskiy zhurnal [Uzbek Biological Journal], no. 1, pp. 30-32. (In Russian).

11. Nazarov R.S., Yakubov M., Ziyoev Z., 2002. Primenenie fosfornykh udobreniy k novym sortam khlopka [Application of phosphorus fertilizers to new varieties of cotton]. Sel'skoe khozyaystvo Uzbekistana [Agriculture of Uzbekistan], no. 3, pp. 49. (In Russian).

12. Mirzajanov K.M., Rakhmanov R.U., 2016. Differentsirovannye normy azotnykh i fosfornykh udobreniy pod khlopchatnik [Differentiated rates of nitrogen and phosphorus fertilizers for cotton]. Agrarnaya nauka [Agrarian Science], no. 7, pp. 12-13, EDN: WHOWVX. (In Russian).

13. Kamolov M., 1973. Vliyanie azotnykh udobreniy na urozhay khlopka – syrtsa v zavisi-mosti ot fosfatnogo urovnya v pochve [Effect of nitrogen fertilizers on raw cotton yield depending on the phosphate level in the soil]. Sel'skoe khozyaystvo Tadzhikistana [Agriculture of Tajikistan], no. 8, pp. 12-14. (In Russian).

14. Buriev I., Tillabekov B., Niyazaliev B., Ismailov J., 2012. Primenenie kaliynykh udobreniy v khlopchatnike [Application of potash fertilizers in cotton]. Sel'skoe khozyaystvo Uzbe-kistana [Agriculture of Uzbekistan], no. 4, pp. 13-14. (In Russian).

15. Zhumaev Sh. M. Effektivnost' mestnykh kaliinykh udobrenii pod khlopchatnik na tipichnykh i lugovo-serozemnykh pochvakh [The effectiveness of local potash fertilizers for cotton on typical and meadow-gray soils]. Nauka i obrazovanie: sokhraniaia proshloe, sozdaem budushchee: sb. statei VI Mezhdunar. nauch.-prakt. konf., Penza, 12 dekabria 2016. [Science and education: preserving the past, creating the future: collection of articles of the VI International Scientific and Practical Conference, Penza, December 12, 2016]. Penza, Nauka i Prosveshchenie, 2016, pp. 58-60, EDN: XDOGQH. (In Russian)