3.2. Crop biomass and lead content
The maturity of the corn at the test site varied seasonally. The average heights and dry biomasses of corns grow on contaminated and uncontaminated soils were showed in Table 2. The mean growth height (218.7 cm±27.9 cm) and biomass production (302.3 g±59.0 g) of the spring crops were relatively high. By contrast, the summer crop production was relatively low; mean height and biomass production values were 175.3 cm±23.7 cm and 258.0 g±37.8 g, respectively. The mean temperature of the site from January to June was approximately 23 °C; the climate was considered suitable for growing corn. The mean temperature in summer was 28 °C, and daytime temperatures approached 35 °C. Torrential rains and typhoons typically occur in the summer, causing an unstable climate and possibly the poor growth of the summer crop. By comparison, the mean plant height and biomass production of the corn harvested on the uncontaminated agricultural land during spring (summer) were 175.2 cm±12.9 cm (170.6 cm±18.5 cm) and 270.6 g±20.1 g (253.4 g±27.2 g), respectively. The mean number of corn ears on the corn grown in both contaminated and uncontaminated soil was three.
3.2. Crop biomass and lead content
The maturity of the corn at the test site varied seasonally. The average heights and dry biomasses of corns grow on contaminated and uncontaminated soils were showed in Table 2. The mean growth height (218.7 cm±27.9 cm) and biomass production (302.3 g±59.0 g) of the spring crops were relatively high. By contrast, the summer crop production was relatively low; mean height and biomass production values were 175.3 cm±23.7 cm and 258.0 g±37.8 g, respectively. The mean temperature of the site from January to June was approximately 23 °C; the climate was considered suitable for growing corn. The mean temperature in summer was 28 °C, and daytime temperatures approached 35 °C. Torrential rains and typhoons typically occur in the summer, causing an unstable climate and possibly the poor growth of the summer crop. By comparison, the mean plant height and biomass production of the corn harvested on the uncontaminated agricultural land during spring (summer) were 175.2 cm±12.9 cm (170.6 cm±18.5 cm) and 270.6 g±20.1 g (253.4 g±27.2 g), respectively. The mean number of corn ears on the corn grown in both contaminated and uncontaminated soil was three.
การแปล กรุณารอสักครู่..
