| Autor: |
Allanov, Kholik, Shamsiev, Akmal, Durdiev, Normat, Avliyakulov, Mirzoolim, Karimov, Aziz, Khaitov, Botir |
| Předmět: |
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| Zdroj: |
Journal of Plant Nutrition; 2020, Vol. 43 Issue 17, p2590-2600, 11p |
| Abstrakt: |
Water shortage is a major challenge for cotton production in Uzbekistan, substantially deteriorating crop growth and yield. Two-year field studies in a split-plot design were conducted at the experimental station of Cotton Research Institute located in Kashkadarya region, Uzbekistan to investigate the response of cotton to different chemical fertilization rates (N250P175K125 kg ha−1 and N200P140K100 kg ha−1) under two irrigation regimes (1-2-1 vs. 1-3-1). Results showed that the cotton plants grown under N250P175K125 kg ha−1 chemical fertilization in combination with 1-3-1 irrigation regime produced significantly higher biomass by 16.4% (3.55 Mg ha−1) and 19.1% (3.37 Mg ha−1), economic yield by 25.3% (3.61 Mg ha−1) and 25.9% (4.03 Mg ha−1) and lint yield by 20% (1.26 Mg ha−1) and 20.7% (1.26 Mg ha−1), respectively, in Iolotan-14 and Surkhan-14 cotton varieties than did the lower level of these treatments. Moreover, a combination of irrigation regime (1-3-1) plus chemical fertilization (N250P175K125 kg ha−1) was superior for fiber quality parameters under arid regions for both tested Gossipium barbadense varieties. Whereas, a total norm of the supplied water under 1-2-1 and 1-3-1 irrigation regimes were 4225.3 and 4148.3 m3 ha−1, showing the effectiveness of the 1-3-1 tested irrigation method. Modern water-saving technologies are important for pima cotton production of Uzbekistan with positive impacts on nutrition and water use efficiencies under arid harsh conditions. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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