PJB-2022-15
ORGANIC AMENDMENTS IMPROVES ROOT AND PLANT GROWTH OF SOYBEAN (Glycine max (L.) Merr.)
SAHANE FUNDA ARSLANOGLU
Abstract
With the invrease in costs of mineral fertilizers, using organic amendments is an alternative way to enhance crop yield and soil conservation . This study was aimed to determine the positive role of vermicompost, sheep manure, cattle manure, and poultry manure on the root and plant development of soybean during the third trifoliate stage (V3 growth stage) and the beginning of the flowering of the plants (R1 growth stage) in the pod conditions. The experiment was established with a two-factorial randomized plot design with four replications. The fertilizer applications had a significant effect (p<0.01) on the V3 and R1 growth stages. The highest plant height (36.78 cm) and root length (41.18 cm) were achieved with vermicompost, and the lowest plant height (21.73 cm) was recorded with application of inorganic fertilizer. . The number of nodules was highest for vermicompost and cattle manure applications (17.16 plant-1 and 16.76 plant-1, respectively), and lowest for poultry manure (0.22 plant-1). In the R1 growth stage, poultry manure produced the highest biological fresh and dry weights, and root dry weight at 25.08 g plant-1,5.67 g plant-1, and 3.99 g plant-1 respectively. In conclusion, vermicompost and poultry manure applications promote strong root and plant development due to high organic matter and phosphorus and they can be used successfully without inorganic fertilizer application in soybean farming.
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