THE EFFECT OF BIOSTIMULANTS ON COTTON YIELD: RESEARCH RESULTS AND APPLICATIONS

Аннотация

INTRODUCTION enhance plant growth, development, and resilience Cotton, often referred to as "white gold," is a to stress conditions (Calvo et al., 2014). Unlike cornerstone of the global textile industry and an fertilizers, which provide essential nutrients, or essential crop for agricultural economies, pesticides, which manage pests and diseases, particularly in arid and semi-arid regions (Ali et al., biostimulants influence plant physiology by 2019). However, the productivity of cotton is often activating natural metabolic processes, improving constrained by various factors, including abiotic nutrient use efficiency, enhancing photosynthesis, stresses such as drought, salinity, and nutrient- and increasing resistance to environmental deficient soils, as well as biotic stresses like pest stressors (du Jardin, 2015). infestations and diseases (Singh & Jat, 2017). These challenges necessitate innovative solutions to The effectiveness of biostimulants in cotton ensure sustainable cotton production while production has been highlighted in several studies, maintaining high yield and fiber quality. which demonstrate their potential to improve root development, flowering, and fruit setting, thereby In recent years, biostimulants have gained contributing to higher yields and better fiber significant attention as a promising tool to address quality (Khan et al., 2021). Among various these challenges in modern agriculture. commercially available biostimulants, "Avangard," Biostimulants are natural or synthetic products "Gulliver," and "Antikolorad" have shown containing biologically active compounds that promising results in enhancing the physiological https://www.theamericanjournals.com/index.php/tajabe 18 THE USA JOURNALS THE AMERICAN JOURNAL OF AGRICULTURE AND BIOMEDICAL ENGINEERING (ISSN – 2689-1018) VOLUME 06 ISSUE12 performance of cotton plants under field conditions. The following is a description of the conditions (Martínez-Vera et al., 2020). effect of biostimulants on cotton yield. This study focuses on evaluating the impact of The research studied the effect of foliar feeding of these biostimulants on the S-8296 cotton variety cotton varieties in meadow soils on the growth, under meadowed alluvial soil conditions. The development, resistance to pests, and yield of specific objectives are to examine their effects on cotton using biostimulants "Avangard", "Gulliver", plant growth, development, resistance to pests, and and "Anticolorad". The table below shows the overall productivity. By providing detailed insights methods and timing of using our physiologically into their application, this research aims to active substances in the experiment in the variants. contribute to sustainable agricultural practices and The experimental variants consist of 9 variants, improved cotton yield. arranged in 3 layers, 3 rotations, and the S-8296 METHODS cotton variety is planted in small plots. Cotton row spacing 76 cm, 4 rows, planting system 76x4, Biostimulants can have a significant positive effect options width 3.04 m, height 25 m, area 228 m2, of on cotton yield. They are used to increase plant which the calculated area is 2052 m2. (Table 1) growth, development, and resistance to stress Table 1. Experimental system (2023-2025) cotton variety S-8296 Processing rate The rate of Processing rate during the processing during flowering Experience options period of 2-3 during flowering- and fruiting period, pine leaves, kg, flowering, kg, kg, l/ha l/ha l/ha 1 Control - - Template 2 1.0 1.0 1.0 (Universal) 3 Antichlorate 0.3 0.3 0.3 4 Avangard start 1.0 1.5 2.0 5 Gulliver 1.0 1.5 2.0 6 Gulliver+Avangard+Antichlorate 1.0+0.5+0.3 1.5+1.0+0.3 1.5+1.5+0.5 Gulliver+Avangard+ 7 1.5+1.0+0.3 2.0+1.5+0.3 2.5+2.5+0.5 Antichlorate Vanguard 1.0 1.5 1.5 Gulliver 8 0.5 1.0 1.5 Antichlorate 0.3 0.3 0.5 (separate handling) 9 Gulliver+Avangard 1.5+1.0 2.0+1.5 2.5+2.5 development of roots and improve the assimilation Biostimulants enhance the process of of nutrients. This leads to the rapid growth and photosynthesis in plants, stimulate the development of cotton. The use of biostimulants https://www.theamericanjournals.com/index.php/tajabe 19 THE USA JOURNALS THE AMERICAN JOURNAL OF AGRICULTURE AND BIOMEDICAL ENGINEERING (ISSN – 2689-1018) VOLUME 06 ISSUE12 "Avangard", "Gulliver" and "Anticolorad" With the above-mentioned preparations, cotton substances in feeding cotton varieties from the was used during the growing period of the growing leaves of research on the growth of cotton in the season or during the flowering period by spraying conditions of grassland soils. , its development, the leaves with a working solution. That is, the resistance to pests and its effect on productivity preparations were sprayed with the help of a hand- were studied. held device Automax during the cotton budding, combing, flowering and fruiting period. Table 2. Phenological monitoring analysis 2024 Plant height Chinbark No Variant number 1.06 1.07 1.08 1.09 Mediu