POSITIVE INFLUENCE OF VERMICOMPOST RATES AND HB101 PLANT VITALIZER ON GROWTH AND YIELD OF BUSH - TYPE COMMON BEAN

Abstract

The combined use of organic fertilizers and foliar applications is increasingly recognized as a strategy to enhance early crop growth and yield. The field experiment was conducted to determine the effects of vermicompost rates and spraying frequency of HB101 plant vitalizer on the growth and yield of bush-type common bean. The two - factor experiment was designed using a randomized complete block design (RCBD). Vermicompost was applied at three levels of 4, 8 and 12 tons ha^-1. The treatments of HB101 spraying were: H0 (water spraying – as control), H1 (spraying at 5-day intervals), H2 (spraying at 10-day intervals). The results showed that increasing vermicompost rates led to increased plant growth and yield traits. Application of 12 tons ha^-1 of vermicompost produced the highest values of LAI, SPAD, dry weight, pod number, pod weight, pod weight per plant, pod yield of bean. Spraying HB101 positively affected the growth indicators, physiological traits and yield parameters, which were statistically higher than those of the control treatment. Combination of 12 tons ha^-1 of vermicompost with spraying HB101 at 5-day or 10-day intervals resulted in better plant performance, with comparable pod yield being 5.12 and 4.61 tons ha^-1.