Effects of vermicompost applications on growth and phosphorus uptake of soybean plants

Vermicompost is organic material from which any organic waste is converted into a useful fertilizer and effective soil conditioner. Chemical substances that have been used intensively for many years have adversely affected soil fertility and microbial activity. Vermicompost products confer plant nutrient elements, various hormones, enzymes, humic substances and especially organic matter to the soil. This study aimed to study the effects of vermicompost application and phosphorus fertilizer rates on soybean in limy soil conditions. The affect of vermicompost applications was evaluated with four doses of vermicompost (control, 2, 4 and 8%) in three doses of phosporus applications. So, 0, 50 ppm and 100 ppm phosporus blocks had all four doses of vermicompost. Optimum level (100 ppm N and 100 ppm K) of N and K fertilisers were applied to all plants tested. Total plant biomass, leaf wet and dry weights, bean wights, plant height and nitrogen compositions of leaf and bean were measured. The results were detected significant at 1 % on all parameters. As control plants' leaf + scape wet and dry weights were measured 25.69 and 5.07 g respectively, they were measured 44.34 and 8.85 g at plants used vermicompost and phosphorus together. With vermicompost and phosphorus aplications, the phosphorus and nitrogen uptakes increased too. While the highest leaf P concentration was measured as 0.46% in V3P2 application, the highest leaf N concentration was determined as 2.56% in V3P2 application. As a result, we observed increased P uptake levels with increased doses of vermicompost application in limysoils in the our study