Affiliation:
1. Kazan State Agrarian University
Abstract
The research was carried out in order to study the effectiveness of the use of various new sulfur-containing fertilizers on sunflower crops in the soil and climatic conditions of the Republic of Tatarstan. Field experiments were conducted in 2023 on the basis of Agrobiotechnopark LLC (Narmonka village, Laishevsky Municipal District of the Republic of Tatarstan), laboratory analyses were carried out at the Center for Agroecological Research of the Kazan State Agrarian University. According to the research results, it was found that the introduction of 150 kg/ha of sulfur bentonite in the studied hybrids provides the growth capacity of cotyledonous leaflets by 26.3 and 29.4 %, respectively, compared with the control version of the experiment. When sulfur bentonite is applied at a dose of 150 kg/ha, the plant height of the studied Anthemis and Terramis hybrids increases by 4 and 7 cm (+3 and 5.6 %) compared with the control variant, and plant safety increases by 1.4 and 0.7 %, respectively. But the maximum values in terms of height and plant safety were obtained using the ammonium sulfate application option of 100 kg / ha, which is explained by the greater need for sunflower nitrogen than sulfur. The mass of productive seeds from one basket, depending on the hybrids studied and the fertilizers applied, ranged from 69 g in the control to 98 g in the last version of the experiment, which is 43% higher compared with the option without adding sulfur bentonite.
Publisher
Infra-M Academic Publishing House
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