Keywords:
- irrigated lands
- nutrients
- phosphorus
- potassium
- humus
- agrochemical analysis
- fertilization system
- mineral fertilizers
- mobile elements
Abstract
The study examined the nutrient status of soils in irrigated agricultural lands in the Qiziltepa district. The results showed that the district's soils are moderately nutrientrich: the humus content over a total area of 29764,04 hectares is 45,00 % at the medium level, 32,58 % at the high level, and 17,46 % at the high level, as well as 4,15 %, 0,66 %, and 0,15 % at the high, very low, and high levels, respectively. The content of available phosphorus (P2O5) is 47,38 % at the low level, 36,06 % at the very low level, and 8,57 %, 4,17 %, and 3,82 % at the medium, high, and high levels, respectively. Furthermore, exchangeable potassium (K2O) levels were detected in 51,79 % of the soil at low levels, 28,94 % at moderate levels, and 10,27 %, 6,13 %, and 2,88 % at very low, high, and very high respectively. Based on the results obtained, scientific recommendations were developed for the rational use of mineral and organic fertilizers and the proper organization of agricultural practices to improve soil fertility. The results of the study are of great importance for achieving high agricultural yields, preventing soil degradation, and the efficient use of land resources.
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