Effect of eggshell powder and phosphorus on growth and yield of MD7 groundnut variety in spring season in Phu Xuyen, Ha Noi

The experiment was conducted to evaluate the effect of eggshell powder and phosphorus on growth and yield of MD7 groundnut variety in the spring season in Phu Xuyen, Ha Noi. The two factor experiment was laid out in a split-plot design with three replications. The main plot consisted of three rates of eggshell powder (0, 300, 500 kg/ha). The sub-plot included three rates of phosphorus (30, 60, 90 kg/ha). The results showed that the growth and yield of plants fertilized with eggshell powder were higher than those with unfertilized eggshell powder. In addition, the growth traits and yield of MD7 groundnut variety increased with increasing phosphorus fertilizer doses from 30 kg P2O5/ha to 90 kg P 2O5/ha under the same fertilized or unfertilized eggshell powder conditions. Briefly, the results indicated that the rate of 500 kg eggshell powder/ha combined with 90 kg P2O5/ha was suitable for MD7 groundnut variety to grow, develop and produce the highest yield in the spring season in Phu Xuyen, Ha Noi.