Assessing the Effects of Biostimulant on Tomato Growth, Yield and Quality in Open Field Condition

Aim: This study, conducted at "C" Block Farm, Bidhan Chandra Krishi Viswavidyalaya, Kalyani, Nadia, West Bengal, during the period of 2022–23, explores the impact of biostimulants on the growth, yield, and quality of tomatoes (Lycopersicon esculentum Mill.). The primary objectives include investigating the significant effects of biostimulants and determining the optimal stage for their application, given the current emphasis on sustainable farming practices.

Study Design: The experimental design employed Randomized Block Design (RBD) with three replications and eight treatments. Results indicate that biostimulant application, particularly as a foliar spray, significantly enhances crop growth and stimulates reproductive growth in later stages compared to control plants. Notably, the application of Biostimulant (Kazuki Gold)topically at 500 ml/acre during pre-flowering stage and during fruit development stage (T5) significantly registered the highest yield of 751.89 q/ha.

Place and Duration of Study: The farm, situated near the Tropic of Cancer, exhibits coordinates of approximately 22.89°N latitude and 88.45°E longitude, with an altitude of around 9.75 m above sea level.

Results: The highest lycopene content of 5.08 mg/100gm, which was significantly superior over all the treatments was obtained with the application of Kazuki gold during the two stages of application (i.e. at pre- flowering stages and during fruit development stage). The study also observed substantial impacts on other quality parameters with the application of seaweed extracts, protein hydrolysates, and N-fixing growth promoters during various stages of plant growth.

Conclusion: Based on the findings, it can be concluded that Applying KAZUKI GOLD/YOSHI GOLD through foliar spray at a rate of 500ml per acre during the pre-flowering and fruit development stages has demonstrated profitability and advantages, leading to increased yields of high-quality tomato fruits.