| Issue |
BIO Web of Conferences
Volume 78, 2023
International Scientific-Practical Conference “Modern Trends of Science, Innovative Technologies in Viticulture and Winemaking” (MTSITVW2023)
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|---|---|---|
| Article Number | 02012 | |
| Number of page(s) | 8 | |
| Section | Genetic Resources, Genetics, Genomics, Bioengineering and Selection | |
| DOI | https://doi.org/10.1051/bioconf/20237802012 | |
| Published online | 08 December 2023 | |
Changes of Nutritive Elements in Soils That Medium-Supplied With Phosphorus, Depending on Fertilizers Used in Cotton Agrocenosis
National University of Uzbekistan named after Mirzo Ulugbek, Tashkent, Uzbekistan
* Corresponding author: samad3182@mail.ru
The aim is to increase the mobile nutrient content in the soil by applying optimal nitrogen and potassium fertilizers without the use of phosphorus fertilizers on irrigated typical gray soils moderately supplied with mobile phosphorus. Significant differences are observed in the amount of mobile phosphorus in the soil from the beginning and till the end of the vegetation. It ranged between 24.28-27.15 mg / kg in the driving layer and between 15.20-19.05 mg / kg in the sub-driving layer. The amount of N-NO3 increased during the vegetation to 29.1-34.4 mg / kg in the driving layer, N-NH4 in the driving layer changed to 3.1-4.2 mg / kg. Exchangeable potassium was found to fluctuate between 148.72–177.82 mg / kg in the driving layer at the end of the vegetation period and varied between 179.2–182.75 mg / kg in the sub-driving layer.
Key words: Soil / plant / new / mineral fertilizer / nitrogen / phosphorus / potassium / mobile / nitrate
© The Authors, published by EDP Sciences, 2023
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